TY - THES A1 - Abegg, Christoph T1 - Parameterisierung atmosphärischer Grenzschichtprozesse in einem regionalen Klimamodell der Arktis Y1 - 1998 CY - Potsdam ER - TY - JOUR A1 - Agarwal, Ankit A1 - Guntu, Ravikumar A1 - Banerjee, Abhirup A1 - Gadhawe, Mayuri Ashokrao A1 - Marwan, Norbert T1 - A complex network approach to study the extreme precipitation patterns in a river basin JF - Chaos : an interdisciplinary journal of nonlinear science N2 - The quantification of spatial propagation of extreme precipitation events is vital in water resources planning and disaster mitigation. However, quantifying these extreme events has always been challenging as many traditional methods are insufficient to capture the nonlinear interrelationships between extreme event time series. Therefore, it is crucial to develop suitable methods for analyzing the dynamics of extreme events over a river basin with a diverse climate and complicated topography. Over the last decade, complex network analysis emerged as a powerful tool to study the intricate spatiotemporal relationship between many variables in a compact way. In this study, we employ two nonlinear concepts of event synchronization and edit distance to investigate the extreme precipitation pattern in the Ganga river basin. We use the network degree to understand the spatial synchronization pattern of extreme rainfall and identify essential sites in the river basin with respect to potential prediction skills. The study also attempts to quantify the influence of precipitation seasonality and topography on extreme events. The findings of the study reveal that (1) the network degree is decreased in the southwest to northwest direction, (2) the timing of 50th percentile precipitation within a year influences the spatial distribution of degree, (3) the timing is inversely related to elevation, and (4) the lower elevation greatly influences connectivity of the sites. The study highlights that edit distance could be a promising alternative to analyze event-like data by incorporating event time and amplitude and constructing complex networks of climate extremes. Y1 - 2022 U6 - https://doi.org/10.1063/5.0072520 SN - 1054-1500 SN - 1089-7682 VL - 32 IS - 1 PB - American Institute of Physics CY - Woodbury, NY ER - TY - BOOK A1 - Ahlefeld, Kristin A1 - Biemer, Anna-Lena A1 - Bredendiek, Florian A1 - Dunte, Stefan A1 - Fietze, Bianca A1 - Gamradt, Rebecca A1 - Jennek, Julia A1 - Nick, Gregor A1 - Schinagl, Martin A1 - Schmidt, Karsten T1 - Ein Kiez im Wandel der Zeit : Savignyplatz - von der Wende in neue Jahrtausend Y1 - 2008 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Aichner, Bernhard A1 - Ott, Florian A1 - Slowinski, Michal A1 - Norygkiewicz, Agnieszka M. A1 - Brauer, Achim A1 - Sachse, Dirk T1 - Leaf wax n-alkane distributions record ecological changes during the Younger Dryas at Trzechowskie paleolake (northern Poland) without temporal delay JF - Climate of the past : an interactive open access journal of the European Geosciences Union N2 - While of higher plant origin, a specific source assignment of sedimentary leaf wax n-alkanes remains difficult. In addition, it is unknown how fast a changing catchment vegetation would be reflected in sedimentary leaf wax archives. In particular, for a quantitative interpretation of n-alkane C and H isotope ratios in terms of paleohydrological and paleoecological changes, a better understanding of transfer times and dominant sedimentary sources of leaf wax n-alkanes is required. In this study we tested to what extent compositional changes in leaf wax n-alkanes can be linked to known vegetation changes by comparison with high-resolution palynological data from the same archive. We analyzed leaf wax n-alkane concentrations and distributions in decadal resolution from a sedimentary record from Trzechowskie paleolake (TRZ, northern Poland), covering the Late Glacial to early Holocene (13 360-9940 yr BP). As an additional source indicator of targeted n-alkanes, compound-specific carbon isotopic data have been generated in lower time resolution. The results indicated rapid responses of n-alkane distribution patterns coinciding with major climatic and paleoecological transitions. We found a shift towards higher average chain length (ACL) values at the Allerod-Younger Dryas (YD) transition between 12 680 and 12 600 yr BP, co-evaled with a decreasing contribution of arboreal pollen (mainly Pinus and Betula) and a subsequently higher abundance of pollen derived from herbaceous plants (Poaceae, Cyperaceae, Artemisia), shrubs, and dwarf shrubs (Juniperus and Salix). The termination of the YD was characterized by a successive increase in n-alkane concentrations coinciding with a sharp decrease in ACL values between 11 580 and 11 490 yr BP, reflecting the expansion of woodland vegetation at the YD-Holocene transition. A gradual reversal to longer chain lengths after 11 200 yr BP, together with decreasing n-alkane concentrations, most likely reflects the early Holocene vegetation succession with a decline of Betula. These results show that n-alkane distributions reflect vegetation changes and that a fast (i.e., subdecadal) signal transfer occurred. However, our data also indicate that a standard interpretation of directional changes in biomarker ratios remains difficult. Instead, responses such as changes in ACL need to be discussed in the context of other proxy data. In addition, we find that organic geochemical data integrate different ecological information compared to pollen, since some gymnosperm genera, such as Pinus, produce only a very low amount of n-alkanes and for this reason their contribution may be largely absent from biomarker records. Our results demonstrate that a combination of palynological and n-alkane data can be used to infer the major sedimentary leaf wax sources and constrain leaf wax transport times from the plant source to the sedimentary sink and thus pave the way towards quantitative interpretation of compound-specific hydrogen isotope ratios for paleohydrological reconstructions. Y1 - 2018 U6 - https://doi.org/10.5194/cp-14-1607-2018 SN - 1814-9324 SN - 1814-9332 VL - 14 IS - 11 SP - 1607 EP - 1624 PB - Copernicus CY - Göttingen ER - TY - JOUR A1 - Amour, Frederic A1 - Mutti, Maria A1 - Christ, Nicolas A1 - Immenhauser, Adrian A1 - Agar, Susan M. A1 - Benson, Gregory S. A1 - Tomas, Sara A1 - Alway, Robert A1 - Kabiri, Lachen T1 - Capturing and modelling metre-scale spatial facies heterogeneity in a Jurassic ramp setting (Central High Atlas, Morocco) JF - Sedimentology : the journal of the International Association of Sedimentologists N2 - Each simulation algorithm, including Truncated Gaussian Simulation, Sequential Indicator Simulation and Indicator Kriging is characterized by different operating modes, which variably influence the facies proportion, distribution and association of digital outcrop models, as shown in clastic sediments. A detailed study of carbonate heterogeneity is then crucial to understanding these differences and providing rules for carbonate modelling. Through a continuous exposure of Bajocian carbonate strata, a study window (320 m long, 190 m wide and 30 m thick) was investigated and metre-scale lithofacies heterogeneity was captured and modelled using closely-spaced sections. Ten lithofacies, deposited in a shallow-water carbonate-dominated ramp, were recognized and their dimensions and associations were documented. Field data, including height sections, were georeferenced and input into the model. Four models were built in the present study. Model A used all sections and Truncated Gaussian Simulation during the stochastic simulation. For the three other models, Model B was generated using Truncated Gaussian Simulation as for Model A, Model C was generated using Sequential Indicator Simulation and Model D was generated using Indicator Kriging. These three additional models were built by removing two out of eight sections from data input. The removal of sections allows direct insights on geological uncertainties at inter-well spacings by comparing modelled and described sections. Other quantitative and qualitative comparisons were carried out between models to understand the advantages/disadvantages of each algorithm. Model A is used as the base case. Indicator Kriging (Model D) simplifies the facies distribution by assigning continuous geological bodies of the most abundant lithofacies to each zone. Sequential Indicator Simulation (Model C) is confident to conserve facies proportion when geological heterogeneity is complex. The use of trend with Truncated Gaussian Simulation is a powerful tool for modelling well-defined spatial facies relationships. However, in shallow-water carbonate, facies can coexist and their association can change through time and space. The present study shows that the scale of modelling (depositional environment or lithofacies) involves specific simulation constraints on shallow-water carbonate modelling methods. KW - 3D facies modelling KW - carbonate ramp KW - facies heterogeneity KW - Jurassic KW - modelling algorithms KW - scale Y1 - 2012 U6 - https://doi.org/10.1111/j.1365-3091.2011.01299.x SN - 0037-0746 VL - 59 IS - 4 SP - 1158 EP - 1189 PB - Wiley-Blackwell CY - Malden ER - TY - JOUR A1 - Arguello de Souza, Felipe Augusto A1 - Samprogna Mohor, Guilherme A1 - Guzman Arias, Diego Alejandro A1 - Sarmento Buarque, Ana Carolina A1 - Taffarello, Denise A1 - Mendiondo, Eduardo Mario T1 - Droughts in São Paulo BT - challenges and lessons for a water-adaptive society JF - Urban water journal N2 - Literature has suggested that droughts and societies are mutually shaped and, therefore, both require a better understanding of their coevolution on risk reduction and water adaptation. Although the Sao Paulo Metropolitan Region drew attention because of the 2013-2015 drought, this was not the first event. This paper revisits this event and the 1985-1986 drought to compare the evolution of drought risk management aspects. Documents and hydrological records are analyzed to evaluate the hazard intensity, preparedness, exposure, vulnerability, responses, and mitigation aspects of both events. Although the hazard intensity and exposure of the latter event were larger than the former one, the policy implementation delay and the dependency of service areas in a single reservoir exposed the region to higher vulnerability. In addition to the structural and non-structural tools implemented just after the events, this work raises the possibility of rainwater reuse for reducing the stress in reservoirs. KW - droughts KW - urban water supply KW - water crisis KW - drought risk KW - paired event KW - analysis KW - vulnerability Y1 - 2022 U6 - https://doi.org/10.1080/1573062X.2022.2047735 SN - 1573-062X SN - 1744-9006 VL - 20 IS - 10 SP - 1682 EP - 1694 PB - Taylor & Francis CY - London [u.a.] ER - TY - THES A1 - Arodudu, Oludunsin Tunrayo T1 - Sustainability assessment of agro-bioenergy systems using energy efficiency indicators BT - energy efficiency assessment of agro-bioenergy systems N2 - The sustainability of agro-bioenergy systems is dependent on many factors, some local or regional in implementation, some others global in nature. This study assessed the effects of often ignored local and regional factors (e.g. alternative agronomic factor options, alternative agricultural production systems, alternative biomass flows, alternative conversion technologies etc. The results from this study suggests that key to enhancing the energy efficiency (and by extension the sustainability) of agro-bioenergy systems is paying attention to local and regional factors such as biomass conversion technology, alternative agronomic factor options, alternative agricultural production systems and available biomass flows. KW - biomass KW - bioenergy KW - energy efficiency KW - sustainability KW - local and regional factors KW - agronomic factors KW - agricultural production systems KW - biomass flows Y1 - 2017 ER - TY - BOOK A1 - Aschauer, Wolfgang ED - Heller, Wilfried T1 - Identität - Regionalbewußtsein - Ethnizität T3 - Praxis Kultur- und Sozialgeographie Y1 - 1996 VL - 13 PB - Selbstverl. der Abt. Anthropogeographie und Geoinformatik des Inst. für Geographie und Geoökologie der Univ. CY - Potsdam ER - TY - BOOK A1 - Aschauer, Wolfgang T1 - Auswirkungen der wirtschaftlichen und politischen Veränderungen in Osteuropa auf den ungarisch- österreichischen und den ungarisch-rumänischen Grenzraum T3 - Potsdamer Geographische Forschungen Y1 - 1995 SN - 0940-9688 VL - 10 PB - Inst. für Geographie und Geoökologie CY - Potsdam ER - TY - THES A1 - Aschauer, Wolfgang T1 - Aktuelle Tendenzen der Geographieentwicklung und ihr Beitrag zu einer Neukonzeption der Landeskunde - dargestellt und durchgeführt am Beispiel einer Landeskunde des Landesteiles Schleswig Y1 - 1999 ER - TY - JOUR A1 - Asche, Hartmut T1 - Zum Nutzungspotential konventioneller und netzbasierter Atlanten : welchen Mehrwert bieten die Neuen Medien? Y1 - 2002 SN - 3-87907-388-0 ER - TY - JOUR A1 - Asche, Hartmut T1 - Mapping and map use in the age of information technology Y1 - 1998 ER - TY - THES A1 - Asche, Hartmut T1 - Netzbasierte geographische Informationsverarbeitung Y1 - 2001 SN - 3-87907-353-8 ER - TY - JOUR A1 - Asche, Hartmut T1 - Kartographische Informationverarbeitung in Datennetzen-Prinzipien, Produkte, Perspektiven Y1 - 2001 SN - 3-87907-353-8 ER - TY - JOUR A1 - Asche, Hartmut T1 - Webbasierte Geoinformatik im BMBF-Förderprogramm "Neue Medien in der Bildung" Y1 - 2001 SN - 3-87907-353-8 ER - TY - JOUR A1 - Asche, Hartmut T1 - Zur Visualisierung von Umweltdaten in Umweltinformationssytemen : ein Modul digitaler Basiskarten für das brandenburgische Landesumweltinformationssystem LUIS-BB Y1 - 2000 ER - TY - JOUR A1 - Asche, Hartmut A1 - Hermann, Christian T1 - Thematic cartography Y1 - 2001 SN - 0-7506-4996-8 ER - TY - JOUR A1 - Asche, Hartmut A1 - Schwarz, Jan-Arne A1 - Siemer, Julia T1 - E-Learning und Geoinformation : zur Vermittlung geoinformationeller Querschnittskompetenz Y1 - 2002 SN - 3-89838-033-5 ER - TY - JOUR A1 - Athare, Tushar Ramchandra A1 - Pradhan, Prajal A1 - Kropp, Jürgen T1 - Environmental implications and socioeconomic characterisation of Indian diets JF - The science of the total environment N2 - India is facing a double burden of malnourishment with co-existences of under- and over-nourishment. Various socioeconomic factors play an essential role in determining dietary choices. Agriculture is one of the major emitters of greenhouse gases (GHGs) in India, contributing 18% of total emissions. It also consumes freshwater and uses land significantly. We identify eleven Indian diets by applying k-means cluster analysis on latest data from the Indian household consumer expenditure survey. The diets vary in calorie intake [2289-3218 kcal/Consumer Unit (CU)/day] and dietary composition. Estimated embodied GHG emissions in the diets range from 1.36 to 3.62 kg CO2eq./CU/day, land footprint from 4 to 5.45 m(2)/CU/day, whereas water footprint varies from 2.13 to 2.97m(3)/CU/day. Indian diets deviate from a healthy reference diet either with too much or too little consumption of certain food groups. Overall, cereals, sugar, and dairy products intake are higher. In contrast, the consumption of fruits and vegetables, pulses, and nuts is lower than recommended. Our study contributes to deriving required polices for the sustainable transformation of food systems in India to eliminate malnourishment and to reduce the environmental implications of the food systems. (c) 2020 Elsevier B.V. All rights reserved. KW - Indian diets KW - GHG emissions KW - land and water footprint KW - healthy diets KW - socioeconomic factors Y1 - 2020 U6 - https://doi.org/10.1016/j.scitotenv.2020.139881 SN - 0048-9697 SN - 1879-1026 VL - 737 PB - Elsevier Science CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Athare, Tushar Ramchandra A1 - Pradhan, Prajal A1 - Singh, S. R. K. A1 - Kropp, Jürgen T1 - India consists of multiple food systems with scoioeconomic and environmental variations JF - PLOS ONE / Public Library of Science N2 - Agriculture in India accounts for 18% of greenhouse gas (GHG) emissions and uses significant land and water. Various socioeconomic factors and food subsidies influence diets in India. Indian food systems face the challenge of sustainably nourishing the 1.3 billion population. However, existing studies focus on a few food system components, and holistic analysis is still missing. We identify Indian food systems covering six food system components: food consumption, production, processing, policy, environmental footprints, and socioeconomic factors from the latest Indian household consumer expenditure survey. We identify 10 Indian food systems using k-means cluster analysis on 15 food system indicators belonging to the six components. Based on the major source of calorie intake, we classify the ten food systems into production-based (3), subsidy-based (3), and market-based (4) food systems. Home-produced and subsidized food contribute up to 2000 kcal/consumer unit (CU)/day and 1651 kcal/CU/day, respectively, in these food systems. The calorie intake of 2158 to 3530 kcal/CU/day in the food systems reveals issues of malnutrition in India. Environmental footprints are commensurate with calorie intake in the food systems. Embodied GHG, land footprint, and water footprint estimates range from 1.30 to 2.19 kg CO(2)eq/CU/day, 3.89 to 6.04 m(2)/CU/day, and 2.02 to 3.16 m(3)/CU/day, respectively. Our study provides a holistic understanding of Indian food systems for targeted nutritional interventions on household malnutrition in India while also protecting planetary health. Y1 - 2022 U6 - https://doi.org/10.1371/journal.pone.0270342 SN - 1932-6203 VL - 17 IS - 8 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Avrami, Lydia A1 - Sprinz, Detlef F. T1 - Measuring and explaining the EU’s effect on national climate performance JF - Environmental Politics N2 - To what extent has the European Union (EU) had a benign or retarding effect on what its member states would have undertaken in the absence of EU climate policies during 2008–2012? A measurement tool for the EU policy’s effect is developed and shows a benign average EU effect with considerable variation across countries. The EU’s policy effectiveness vis-à-vis its member states is explained by the EU’s non-compliance mechanism, the degree of usage of the Kyoto flexible mechanisms, and national pre-Kyoto emission reduction goals. Time-series cross-sectional analyses show that the EU’s non-compliance mechanism has no effect, while the ex-ante plans for using Kyoto flexible mechanisms and/or the ambitious pre-Kyoto emission reduction targets allow member states to escape constraints imposed by EU climate policy. KW - Climate change KW - policy effectiveness KW - EU KW - kyoto protocol KW - non-compliance KW - Kyoto (flexible) mechanisms Y1 - 2018 U6 - https://doi.org/10.1080/09644016.2018.1494945 SN - 0964-4016 SN - 1743-8934 VL - 28 IS - 5 SP - 822 EP - 846 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - JOUR A1 - Ayzel, Georgy T1 - Deep neural networks in hydrology BT - the new generation of universal and efficient models BT - новое поколение универсальных и эффективных моделей JF - Vestnik of Saint Petersburg University. Earth Sciences N2 - For around a decade, deep learning - the sub-field of machine learning that refers to artificial neural networks comprised of many computational layers - modifies the landscape of statistical model development in many research areas, such as image classification, machine translation, and speech recognition. Geoscientific disciplines in general and the field of hydrology in particular, also do not stand aside from this movement. Recently, the proliferation of modern deep learning-based techniques and methods has been actively gaining popularity for solving a wide range of hydrological problems: modeling and forecasting of river runoff, hydrological model parameters regionalization, assessment of available water resources. identification of the main drivers of the recent change in water balance components. This growing popularity of deep neural networks is primarily due to their high universality and efficiency. The presented qualities, together with the rapidly growing amount of accumulated environmental information, as well as increasing availability of computing facilities and resources, allow us to speak about deep neural networks as a new generation of mathematical models designed to, if not to replace existing solutions, but significantly enrich the field of geophysical processes modeling. This paper provides a brief overview of the current state of the field of development and application of deep neural networks in hydrology. Also in the following study, the qualitative long-term forecast regarding the development of deep learning technology for managing the corresponding hydrological modeling challenges is provided based on the use of "Gartner Hype Curve", which in the general details describes a life cycle of modern technologies. N2 - В течение последнего десятилетия глубокое обучение - область машинного обучения, относящаяся к искусственным нейронным сетям, состоящим из множества вычислительных слоев, - изменяет ландшафт развития статистических моделей во многих областях исследований, таких как классификация изображений, машинный перевод, распознавание речи. Географические науки, а также входящая в их состав область исследования гидрологии суши, не стоят в стороне от этого движения. В последнее время применение современных технологий и методов глубокого обучения активно набирает популярность для решения широкого спектра гидрологических задач: моделирования и прогнозирования речного стока, районирования модельных параметров, оценки располагаемых водных ресурсов, идентификации факторов, влияющих на современные изменения водного режима. Такой рост популярности глубоких нейронных сетей продиктован прежде всего их высокой универсальностью и эффективностью. Представленные качества в совокупности с быстрорастущим количеством накопленной информации о состоянии окружающей среды, а также ростом доступности вычислительных средств и ресурсов, позволяют говорить о глубоких нейронных сетях как о новом поколении математических моделей, призванных если не заменить существующие решения, то значительно обогатить область моделирования геофизических процессов. В данной работе представлен краткий обзор текущего состояния области разработки и применения глубоких нейронных сетей в гидрологии. Также в работе предложен качественный долгосрочный прогноз развития технологии глубокого обучения для решения задач гидрологического моделирования на основе использования «кривой ажиотажа Гартнера», в общих чертах описывающей жизненный цикл современных технологий. T2 - Глубокие нейронные сети в гидрологии KW - deep neural networks KW - deep learning KW - machine learning KW - hydrology KW - modeling KW - глубокие нейронные сети KW - глубокое обучение KW - машинное обучение KW - гидрология KW - моделирование Y1 - 2021 U6 - https://doi.org/10.21638/spbu07.2021.101 SN - 2541-9668 SN - 2587-585X VL - 66 IS - 1 SP - 5 EP - 18 PB - Univ. Press CY - St. Petersburg ER - TY - JOUR A1 - Ayzel, Georgy A1 - Heistermann, Maik T1 - The effect of calibration data length on the performance of a conceptual hydrological model versus LSTM and GRU BT - a case study for six basins from the CAMELS dataset JF - Computers & geosciences : an international journal devoted to the publication of papers on all aspects of geocomputation and to the distribution of computer programs and test data sets ; an official journal of the International Association for Mathematical Geology N2 - We systematically explore the effect of calibration data length on the performance of a conceptual hydrological model, GR4H, in comparison to two Artificial Neural Network (ANN) architectures: Long Short-Term Memory Networks (LSTM) and Gated Recurrent Units (GRU), which have just recently been introduced to the field of hydrology. We implemented a case study for six river basins across the contiguous United States, with 25 years of meteorological and discharge data. Nine years were reserved for independent validation; two years were used as a warm-up period, one year for each of the calibration and validation periods, respectively; from the remaining 14 years, we sampled increasing amounts of data for model calibration, and found pronounced differences in model performance. While GR4H required less data to converge, LSTM and GRU caught up at a remarkable rate, considering their number of parameters. Also, LSTM and GRU exhibited the higher calibration instability in comparison to GR4H. These findings confirm the potential of modern deep-learning architectures in rainfall runoff modelling, but also highlight the noticeable differences between them in regard to the effect of calibration data length. KW - Artificial neural networks KW - Calibration KW - Deep learning KW - Rainfall-runoff KW - modelling Y1 - 2021 U6 - https://doi.org/10.1016/j.cageo.2021.104708 SN - 0098-3004 SN - 1873-7803 VL - 149 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Ayzel, Georgy A1 - Heistermann, Maik A1 - Winterrath, Tanja T1 - Optical flow models as an open benchmark for radar-based precipitation nowcasting (rainymotion v0.1) JF - Geoscientific model development N2 - Quantitative precipitation nowcasting (QPN) has become an essential technique in various application contexts, such as early warning or urban sewage control. A common heuristic prediction approach is to track the motion of precipitation features from a sequence of weather radar images and then to displace the precipitation field to the imminent future (minutes to hours) based on that motion, assuming that the intensity of the features remains constant (“Lagrangian persistence”). In that context, “optical flow” has become one of the most popular tracking techniques. Yet the present landscape of computational QPN models still struggles with producing open software implementations. Focusing on this gap, we have developed and extensively benchmarked a stack of models based on different optical flow algorithms for the tracking step and a set of parsimonious extrapolation procedures based on image warping and advection. We demonstrate that these models provide skillful predictions comparable with or even superior to state-of-the-art operational software. Our software library (“rainymotion”) for precipitation nowcasting is written in the Python programming language and openly available at GitHub (https://github.com/hydrogo/rainymotion, Ayzel et al., 2019). That way, the library may serve as a tool for providing fast, free, and transparent solutions that could serve as a benchmark for further model development and hypothesis testing – a benchmark that is far more advanced than the conventional benchmark of Eulerian persistence commonly used in QPN verification experiments. KW - machine KW - system Y1 - 2019 U6 - https://doi.org/10.5194/gmd-12-1387-2019 SN - 1991-9603 SN - 1991-959X IS - 12 SP - 1387 EP - 1402 PB - Copernicus Publications CY - Göttingen ER - TY - JOUR A1 - Ayzel, Georgy A1 - Izhitskiy, Alexander T1 - Climate Change Impact Assessment on Freshwater Inflow into the Small Aral Sea JF - Water N2 - During the last few decades, the rapid separation of the Small Aral Sea from the isolated basin has changed its hydrological and ecological conditions tremendously. In the present study, we developed and validated the hybrid model for the Syr Darya River basin based on a combination of state-of-the-art hydrological and machine learning models. Climate change impact on freshwater inflow into the Small Aral Sea for the projection period 2007-2099 has been quantified based on the developed hybrid model and bias corrected and downscaled meteorological projections simulated by four General Circulation Models (GCM) for each of three Representative Concentration Pathway scenarios (RCP). The developed hybrid model reliably simulates freshwater inflow for the historical period with a Nash-Sutcliffe efficiency of 0.72 and a Kling-Gupta efficiency of 0.77. Results of the climate change impact assessment showed that the freshwater inflow projections produced by different GCMs are misleading by providing contradictory results for the projection period. However, we identified that the relative runoff changes are expected to be more pronounced in the case of more aggressive RCP scenarios. The simulated projections of freshwater inflow provide a basis for further assessment of climate change impacts on hydrological and ecological conditions of the Small Aral Sea in the 21st Century. KW - Small Aral Sea KW - hydrology KW - climate change KW - modeling KW - machine learning Y1 - 2019 U6 - https://doi.org/10.3390/w11112377 SN - 2073-4441 VL - 11 IS - 11 PB - MDPI CY - Basel ER - TY - THES A1 - Backmann, Pia T1 - Individual- and trait-based modelling of plant communities and their herbivores Y1 - 2017 ER - TY - JOUR A1 - Ballato, Paolo A1 - Stockli, Daniel F. A1 - Ghassemi, Mohammad R. A1 - Landgraf, Angela A1 - Strecker, Manfred A1 - Hassanzadeh, Jamshid A1 - Friedrich, Anke M. A1 - Tabatabaei, Saeid H. T1 - Accommodation of transpressional strain in the Arabia-Eurasia collision zone new constraints from (U-Th)/He thermochronology in the Alborz mountains, north Iran JF - Tectonics N2 - The Alborz range of N Iran provides key information on the spatiotemporal evolution and characteristics of the Arabia-Eurasia continental collision zone. The southwestern Alborz range constitutes a transpressional duplex, which accommodates oblique shortening between Central Iran and the South Caspian Basin. The duplex comprises NW-striking frontal ramps that are kinematically linked to inherited E-W-striking, right-stepping lateral to obliquely oriented ramps. New zircon and apatite (U-Th)/He data provide a high-resolution framework to unravel the evolution of collisional tectonics in this region. Our data record two pulses of fast cooling associated with SW-directed thrusting across the frontal ramps at similar to 18-14 and 9.5-7.5 Ma, resulting in the tectonic repetition of a fossil zircon partial retention zone and a cooling pattern with a half U-shaped geometry. Uniform cooling ages of similar to 7-6 Ma along the southernmost E-W striking oblique ramp and across its associated NW-striking frontal ramps suggests that the ramp was reactivated as a master throughgoing, N-dipping thrust. We interpret this major change in fault kinematics and deformation style to be related to a change in the shortening direction from NE to N/NNE. The reduction in the obliquity of thrusting may indicate the termination of strike-slip faulting (and possibly thrusting) across the Iranian Plateau, which could have been triggered by an increase in elevation. Furthermore, we suggest that similar to 7-6-m.y.-old S-directed thrusting predated inception of the westward motion of the South Caspian Basin. Citation: Ballato, P., D. F. Stockli, M. R. Ghassemi, A. Landgraf, M. R. Strecker, J. Hassanzadeh, A. Friedrich, and S. H. Tabatabaei (2012), Accommodation of transpressional strain in the Arabia-Eurasia collision zone: new constraints from (U-Th)/He thermochronology in the Alborz mountains. Y1 - 2013 U6 - https://doi.org/10.1029/2012TC003159 SN - 0278-7407 VL - 32 IS - 1 SP - 1 EP - 18 PB - American Geophysical Union CY - Washington ER - TY - BOOK A1 - Balzer, Werner A1 - Beeger, Helmut A1 - Hallermann, Sigrun A1 - Kirsch, H. A1 - Nicklaus, W. A1 - Robel, B. A1 - Werner-Tokarski, D. A1 - Herzig, Reinhard T1 - Seydlitz Geographie 3 : Gymnasium Rheinland-Pfalz Y1 - 2002 SN - 3-507-52607-7 PB - Schroedel CY - Hannover ER - TY - BOOK A1 - Balzer, Werner A1 - Beeger, Helmut A1 - Hallermann, Sigrun A1 - Kirsch, H. A1 - Nicklaus, W. A1 - Robel, B. A1 - Werner-Tokarski, D. A1 - Herzig, Reinhard T1 - Seydlitz Geographie 2 : Gymnasium Rheinland-Pfalz, Saarland Y1 - 2001 SN - 3-507-52606-9 PB - Schroedel CY - Hannover ER - TY - JOUR A1 - Bamberg, Marlene A1 - Jaumann, Ralf A1 - Asche, Hartmut A1 - Kneissl, T. A1 - Michael, G. G. T1 - Floor-Fractured Craters on Mars - Observations and Origin JF - Planetary and space science N2 - Floor-Fractured Craters (FFCs) represent an impact crater type, where the infilling is separated by cracks into knobs of different sizes and shapes. This work focuses on the possible processes which form FFCs to understand the relationship between location and geological environment. We generated a global distribution map using new High Resolution Stereo Camera and Context Camera images. Four hundred and twenty-one potential FFCs have been identified on Mars. A strong link exists among floor fracturing, chaotic terrain, outflow channels and the dichotomy boundary. However, FFCs are also found in the Martian highlands. Additionally, two very diverse craters are used as a case study and we compared them regarding appearance of the surface units, chronology and geological processes. Five potential models of floor fracturing are presented and discussed here. The analyses suggest an origin due to volcanic activity, groundwater migration or tensile stresses. Also subsurface ice reservoirs and tectonic activity are taken into account. Furthermore, the origin of fracturing differs according to the location on Mars. (C) 2013 Elsevier Ltd. All rights reserved. KW - Distribution KW - Volcanic activity KW - Fluvial processes KW - Infilling KW - Polygons KW - Tectonic Y1 - 2014 U6 - https://doi.org/10.1016/j.pss.2013.09.017 SN - 0032-0633 VL - 98 SP - 146 EP - 162 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Barbosa, Luis Romero A1 - de Lira, Nicholas Borges A1 - Rabelo Coelho, Victor Hugo A1 - Bernard Passerat de Silans, Alain Marie A1 - Gadelha, Andre Nobrega A1 - Almeida, Cristiano das Neves T1 - Stability of Soil Moisture Patterns Retrieved at Different Temporal Resolutions in a Tropical Watershed JF - Revista brasileira de ciencias do solo N2 - Above and underground hydrological processes depend on soil moisture (SM) variability, driven by different environmental factors that seldom are well-monitored, leading to a misunderstanding of soil water temporal patterns. This study investigated the stability of the SM temporal dynamics to different monitoring temporal resolutions around the border between two soil types in a tropical watershed. Four locations were instrumented in a small-scale watershed (5.84 km(2)) within the tropical coast of Northeast Brazil, encompassing different soil types (Espodossolo Humiluvico or Carbic Podzol, and Argissolo Vermelho-Amarelo or Haplic Acrisol), land covers (Atlantic Forest, bush vegetation, and grassland) and topographies (flat and moderate slope). The SM was monitored at a temporal resolution of one hour along the 2013-2014 hydrological year and then resampled a resolutions of 6 h, 12 h, 1 day, 2 days, 4 days, 7 days, and 15 days. Descriptive statistics, temporal variability, time-stability ranking, and hierarchical clustering revealed uneven associations among SM time components. The results show that the time-invariant component ruled SM temporal variability over the time-varying parcel, either at high or low temporal resolutions. Time-steps longer than 2 days affected the mean statistical metrics of the SM time-variant parcel. Additionally, SM at downstream and upstream sites behaved differently, suggesting that the temporal mean was regulated by steady soil properties (slope, restrictive layer, and soil texture), whereas their temporal anomalies were driven by climate (rainfall) and hydrogeological (groundwater level) factors. Therefore, it is concluded that around the border between tropical soil types, the distinct behaviour of time-variant and time-invariant components of SM time series reflects different combinations of their soil properties. KW - soil moisture variability KW - time-domain reflectometry KW - temporal resolution KW - Carbic Podzol KW - Haplic Acrisol Y1 - 2019 U6 - https://doi.org/10.1590/18069657rbcs20180236 SN - 0100-0683 VL - 43 PB - Sociedade Brasileira de Ciencia do Solo CY - Vicosa ER - TY - JOUR A1 - Barendrecht, Marlies H. A1 - Viglione, Alberto A1 - Kreibich, Heidi A1 - Merz, Bruno A1 - Vorogushyn, Sergiy A1 - Blöschl, G. T1 - The Value of Empirical Data for Estimating the Parameters of a Sociohydrological Flood Risk Model JF - Water resources research N2 - In this paper, empirical data are used to estimate the parameters of a sociohydrological flood risk model. The proposed model, which describes the interactions between floods, settlement density, awareness, preparedness, and flood loss, is based on the literature. Data for the case study of Dresden, Germany, over a period of 200years, are used to estimate the model parameters through Bayesian inference. The credibility bounds of their estimates are small, even though the data are rather uncertain. A sensitivity analysis is performed to examine the value of the different data sources in estimating the model parameters. In general, the estimated parameters are less biased when using data at the end of the modeled period. Data about flood awareness are the most important to correctly estimate the parameters of this model and to correctly model the system dynamics. Using more data for other variables cannot compensate for the absence of awareness data. More generally, the absence of data mostly affects the estimation of the parameters that are directly related to the variable for which data are missing. This paper demonstrates that combining sociohydrological modeling and empirical data gives additional insights into the sociohydrological system, such as quantifying the forgetfulness of the society, which would otherwise not be easily achieved by sociohydrological models without data or by standard statistical analysis of empirical data. Y1 - 2019 U6 - https://doi.org/10.1029/2018WR024128 SN - 0043-1397 SN - 1944-7973 VL - 55 IS - 2 SP - 1312 EP - 1336 PB - American Geophysical Union CY - Washington ER - TY - JOUR A1 - Barkow, Isolde S. A1 - Oswald, Sascha A1 - Lensing, Hermann Josef A1 - Munz, Matthias T1 - Seasonal dynamics modifies fate of oxygen, nitrate, and organic micropollutants during bank filtration BT - temperature-dependent reactive transport modeling of field data JF - Environmental science and pollution research : official organ of the EuCheMS Division for Chemistry and the Environment, EuCheMS DCE N2 - Bank filtration is considered to improve water quality through microbially mediated degradation of pollutants and is suitable for waterworks to increase their production. In particular, aquifer temperatures and oxygen supply have a great impact on many microbial processes. To investigate the temporal and spatial behavior of selected organic micropollutants during bank filtration in dependence of relevant biogeochemical conditions, we have set up a 2D reactive transport model using MODFLOW and PHT3D under the user interface ORTI3D. The considered 160-m-long transect ranges from the surface water to a groundwater extraction well of the adjacent waterworks. For this purpose, water levels, temperatures, and chemical parameters were regularly measured in the surface water and groundwater observation wells over one and a half years. To simulate the effect of seasonal temperature variations on microbial mediated degradation, we applied an empirical temperature factor, which yields a strong reduction of the degradation rate at groundwater temperatures below 11 degrees C. Except for acesulfame, the considered organic micropollutants are substantially degraded along their subsurface flow paths with maximum degradation rates in the range of 10(-6) mol L-1 s(-1). Preferential biodegradation of phenazone, diclofenac, and valsartan was found under oxic conditions, whereas carbamazepine and sulfamethoxazole were degraded under anoxic conditions. This study highlights the influence of seasonal variations in oxygen supply and temperature on the fate of organic micropollutants in surface water infiltrating into an aquifer. KW - bank filtration KW - aerobic and anaerobic conditions KW - pharmaceuticals and KW - personal care products KW - reactive transport modeling KW - degradation Y1 - 2020 U6 - https://doi.org/10.1007/s11356-020-11002-9 SN - 0944-1344 SN - 1614-7499 VL - 28 IS - 8 SP - 9682 EP - 9700 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Baroni, Gabriele A1 - Schalge, Bernd A1 - Rakovec, Oldrich A1 - Kumar, Rohini A1 - Schüler, Lennart A1 - Samaniego, Luis A1 - Simmer, Clemens A1 - Attinger, Sabine T1 - A Comprehensive Distributed Hydrological Modeling Intercomparison to Support Process Representation and Data Collection Strategies JF - Water resources research N2 - The improvement of process representations in hydrological models is often only driven by the modelers' knowledge and data availability. We present a comprehensive comparison between two hydrological models of different complexity that is developed to support (1) the understanding of the differences between model structures and (2) the identification of the observations needed for model assessment and improvement. The comparison is conducted on both space and time and by aggregating the outputs at different spatiotemporal scales. In the present study, mHM, a process‐based hydrological model, and ParFlow‐CLM, an integrated subsurface‐surface hydrological model, are used. The models are applied in a mesoscale catchment in Germany. Both models agree in the simulated river discharge at the outlet and the surface soil moisture dynamics, lending their supports for some model applications (drought monitoring). Different model sensitivities are, however, found when comparing evapotranspiration and soil moisture at different soil depths. The analysis supports the need of observations within the catchment for model assessment, but it indicates that different strategies should be considered for the different variables. Evapotranspiration measurements are needed at daily resolution across several locations, while highly resolved spatially distributed observations with lower temporal frequency are required for soil moisture. Finally, the results show the impact of the shallow groundwater system simulated by ParFlow‐CLM and the need to account for the related soil moisture redistribution. Our comparison strategy can be applied to other models types and environmental conditions to strengthen the dialog between modelers and experimentalists for improving process representations in Earth system models. KW - hydrological models KW - assessments KW - monitoring strategies KW - improvements Y1 - 2019 U6 - https://doi.org/10.1029/2018WR023941 SN - 0043-1397 SN - 1944-7973 VL - 55 IS - 2 SP - 990 EP - 1010 PB - American Geophysical Union CY - Washington ER - TY - BOOK A1 - Barsch, Andreas T1 - Landschaften im Wandel : Auswirkungen der globalen Erwärmung auf das Uvs-Nuur-Becken (NW-Mongolei) T3 - Stoffdynamik in Geosystemen Y1 - 2004 SN - 0949-4731 VL - 10 PB - Selbstverl. der Arbeitsgruppe Stoffdynamik in Geosystemen CY - Potsdam ER - TY - JOUR A1 - Barsch, Heiner A1 - Blumenstein, Oswald A1 - Schachtzabel, Hartmut T1 - Zur Modellierung transportkontrollierter Transferprozesse auf Altlastengebieten in Brandenburg Y1 - 1994 ER - TY - JOUR A1 - Barsch, Heiner A1 - Blumenstein, Oswald A1 - Schubert, Rudolf T1 - The case of sewage farms south of Berlin Y1 - 1999 ER - TY - JOUR A1 - Barsch, Heiner A1 - Geldmacher, Karl T1 - Der lange Marsch ins Urlaubsparadies : die Entwicklung von Bergbaufolgelandschaften in der Niederlausitz, dargestellt am Beispiel des ehemaligen Tagebaus Meuro Y1 - 2005 SN - 3-937786-80-5 ER - TY - JOUR A1 - Barsch, Heiner A1 - Geldmacher, Karl T1 - Methodischer Ansatz und Probleme einer biotopbezogenen Bewertung von Flora und Fauna im Gebiet des Flughafens Schönefeld N2 - Ausgehend von einer floristisch-vegetationskundlichen sowie faunistischen Bestandsaufnahme wurde im Planungsgebiet für den Ausbau des Flughafens Schönefeld 1995/96 der ökologische Wert der dort kartierten Biotope als Pflanzenstandort und als Lebensstätte der erhobenen Tierarten beurteilt. Diese Bewertung galt zunächst dem Biotoptyp. Die dafür relevanten Merkmale seiner Ausstattung wurden einzeln und unabhängig voneinander beurteilt. Die Gesamtbeurteilung des typbezogenen Biotopwertes erfolgte auf der Grundlage bedeutender Einzelparameter. Eine Mittelwertbildung wurde nicht vorgenommen. Dagegen wurde die typbezogene Bewertung hinsichtlich der konkreten Ausprägung jeder Kartiereinheit überprüft und gegebenenfalls korrigiert. Hierbei wurden die Ergebnisse unter Berücksichtigung der vorhandenen und beabsichtigten Schutzgebietsausweisungen für den Einzelfall verbal-argumentativ erläutert. Y1 - 1999 SN - 3-7908-1174-2 ER - TY - JOUR A1 - Barsch, Heiner A1 - Geldmacher, Karl A1 - Knothe, Dieter A1 - Saupe, Gabriele A1 - Ziener, Karen T1 - Entwicklung und Gestaltung von Erholungsgebieten in Bergbaufolgelandschaften der Niederlausitz JF - Potsdamer geographische Forschungen N2 - Inhaltliche Schwerpunkte: Erfassung und Bewertung der landschaftlichen Ausstattung, Erkundung landschaftsprägender Prozesse in ihrer raum-zeitlichen Dimension Aktuelle Präferenzen, Nachfrage und Angebot bei Erholung und Tourismus im Umfeld der Sanierungsgebiete, Bestimmung von spezifischen Nutzergruppen im Tourismus- und Freizeitbereich Überlegungen zu einem variablen, informellen Planungsrahmen, der Inhalte der formellen Sanierungspläne umsetzungsfähig macht Aufstellen von Szenarien für die sich entwickelnde Nutzungslandschaft Y1 - 1999 SN - 0940-9688 VL - 17 PB - Selbstverl. der Institute für Geographie und Geoökologie CY - Potsdam ER - TY - BOOK A1 - Barsch, Heiner A1 - Opp, Christian A1 - Steinhardt, Uta T1 - Geoökologische Probleme in der Waldsteppe der nördlichen Mongolei T3 - Potsdamer geographische Forschungen Y1 - 1993 SN - 0940-9688 VL - 3 PB - Fachber. Geogr. d. Univ. Potsdam CY - Potsdam ER - TY - BOOK A1 - Barsch, Heiner A1 - Saupe, Gabriele T1 - Zur Integration landschaftsökologischer und sozioökologischer Daten in gebietliche Planung : Zwischenbericht zum Projekt " Bewertung und Gestaltung der naturnahen Landschaft in Schutzgebieten, Erholungs- und Freizeitgebieten" ; Tabellen T3 - Potsdamer geographische Forschungen Y1 - 1993 SN - 0940-9688 VL - 4 PB - Fachber. Geogr. d. Univ. Potsdam CY - Potsdam ER - TY - BOOK A1 - Barsch, Heiner A1 - Saupe, Gabriele A1 - Bierwagen, Charlotte T1 - Bewertung und Gestaltung der naturnahen Landschaft in Schutzgebieten, Erholungs- und Freizeitgebieten ; Teil 1 T3 - Potsdamer Geographische Forschungen Y1 - 1994 VL - 8 PB - Selbstverl. d. Inst. für Geographie u. Geoökologie d. Univ. Potsdam CY - Potsdam ER - TY - BOOK A1 - Barsch, Heiner A1 - Saupe, Gabriele A1 - Bierwagen, Charlotte T1 - Bewertung und Gestaltung der naturnahen Landschaft in Schutzgebieten, Erholungs- und Freizeitgebieten ; Teil 2 T3 - Potsdamer Geographische Forschungen Y1 - 1994 VL - 8 PB - Selbstverl. d. Inst. für Geographie u. Geoökologie d. Univ. Potsdam CY - Potsdam ER - TY - BOOK A1 - Barsch, Heiner A1 - Saupe, Gabriele A1 - Bierwagen, Charlotte T1 - Bewertung und Gestaltung der naturnahen Landschaft in Schutzgebieten, Erholungs- und Freizeitgebieten ; Anhang T3 - Potsdamer Geographische Forschungen Y1 - 1994 VL - 8 PB - Selbstverl. d. Inst. für Geographie u. Geoökologie d. Univ. Potsdam CY - Potsdam ER - TY - JOUR A1 - Barthel, Martin A1 - Bürkner, Hans-Joachim T1 - Ukraine and the big moral divide BT - what biased media coverage means to East European borders JF - Geopolitics N2 - Geopolitical shifts and the changing significance of borders in the EU's neighbourhood are usually understood as a matter of international power politics. Factors that accompany geopolitical impact on borders, such as media coverage of geopolitical change, often appear as secondary or irrelevant. However the recent Ukraine conflict revealed the contrary as pro-EU attitudes were strongly supported by 'western' media. Therefore this paper seeks to clarify the role of news media in creating perspectives and attitudes on geopolitical shifts and the significance of European borders. Empirical evidence on the coverage of the evolving Ukraine crisis by German news sources portrays the media as promoters of biased framings and imaginaries which suggest that the EU be a potential conflict party in the newly evolving geostrategic confrontation in its eastern neighbourhood. The findings indicate that during critical periods of the Ukraine crisis media reports combined rising euphoria about Europe and 'the West', as defenders of the 'good cause', with excessive moral polarising and the discursive normalisation of a rhetoric of escalation. Imaginaries of a bipolar world (The West against Russia) and a new Cold War prepared the ground for a new understanding of European borders and neighbourhood relations as being manipulable at will. Y1 - 2019 U6 - https://doi.org/10.1080/14650045.2018.1561437 SN - 1465-0045 SN - 1557-3028 VL - 25 IS - 3 SP - 633 EP - 657 PB - Routledge, Taylor & Francis Group CY - Philadelphia, Pa. [u.a] ER - TY - JOUR A1 - Barthold, Frauke Katrin A1 - Stallard, Robert F. A1 - Elsenbeer, Helmut T1 - Soil nutrient-landscape relationships in a lowland tropical rainforest in Panama N2 - Soils play a crucial role in biogeochemical cycles as spatially distributed sources and sinks of nutrients. Any spatial patterns depend on soil forming processes, our understanding of which is still limited, especially in regards to tropical rainforests. The objective of our study was to investigate the effects of landscape properties, with an emphasis on the geometry of the land surface, on the spatial heterogeneity of soil chemical properties, and to test the suitability of soil-landscape modeling as an appropriate technique to predict the spatial variability of exchangeable K and Mg in a humid tropical forest in Panama. We used a design-based, stratified sampling scheme to collect soil samples at 108 sites on Barro Colorado Island, Panama. Stratifying variables are lithology, vegetation and topography. Topographic variables were generated from high-resolution digital elevation models with a grid size of 5 m. We took samples from five depths down to I m, and analyzed for total and exchangeable K and Mg. We used simple explorative data analysis techniques to elucidate the importance of lithology for soil total and exchangeable K and Mg. Classification and Regression Trees (CART) were adopted to investigate importance of topography, lithology and vegetation for the spatial distribution of exchangeable K and Mg and with the intention to develop models that regionalize the point observations using digital terrain data as explanatory variables. Our results suggest that topography and vegetation do not control the spatial distribution of the selected soil chemical properties at a landscape scale and lithology is important to some degree. Exchangeable K is distributed equally across the study area indicating that other than landscape processes, e.g. biogeochemical processes, are responsible for its spatial distribution. Lithology contributes to the spatial variation of exchangeable Mg but controlling variables could not be detected. The spatial variation of soil total K and Mg is mainly influenced by lithology. Y1 - 2008 UR - http://si-pddr.si.edu/dspace/bitstream/10088/7790/1/Barthold_soil_nutrient_landscape_r.pdf U6 - https://doi.org/10.1016/j.foreco.2007.09.089 SN - 0378-1127 ER - TY - BOOK A1 - Bauer, Günter A1 - Bricks, Wolfgang A1 - Bütow, Heike A1 - Herzig, Reinhard A1 - Jahn, Gert A1 - Markert, Wolfgang A1 - Marth, U. A1 - Meißgeier, Jürgen A1 - Schmidtke, Kurt-Dietmar A1 - Ullrich, Ch. T1 - Seydlitz Erdkunde 1 : Kl. 5/6, Sekundarstufe 1 Neue Bundesländer, Berlin Y1 - 1998 SN - 3-5075-2521-6 PB - Schroedel CY - Hannover ER - TY - BOOK A1 - Bauer, Günter A1 - Bricks, Wolfgang A1 - Bütow, Heike A1 - Herzig, Reinhard A1 - Jahn, Gert A1 - Markert, Wolfgang A1 - Meißgeier, Jürgen A1 - Schmidtke, Kurt-Dietmar T1 - Seydlitz Erdkunde 1 : Lehrerhandreichungen Y1 - 1998 PB - Schroedel CY - Hannover ER - TY - BOOK A1 - Bauer, Günter A1 - Bricks, Wolfgang A1 - Bütow, Heike A1 - Herzig, Reinhard A1 - Jahn, Gert A1 - Markert, Wolfgang A1 - Meißgeier, Jürgen A1 - Schmidtke, Kurt-Dietmar T1 - Seydlitz Erdkunde 1 : Kl. 5, Sekundarstufe 1, Berlin, Brandenburg Y1 - 1997 SN - 3-507-52502-x PB - Schroedel CY - Hannover ER - TY - BOOK A1 - Bauer, Günther A1 - Bricks, Wolfgang A1 - Bütow, Heike A1 - Herzig, Reinhard A1 - Jahn, Gert A1 - Markert, Wolfgang A1 - Meißgeier, Jürgen A1 - Schmidtke, Kurt-Dietmar T1 - Seydlitz Erdkunde 1 : Kl. 5, Sekundarstufe 1 Mecklenburg-Vorpommern Y1 - 1997 SN - 3-507-52500-3 PB - Schroedel CY - Hannover ER - TY - JOUR A1 - Bauer, Jonas A1 - Börsig, Nicolas A1 - Pham, Van Cam A1 - Hoan, Tran Viet A1 - Nguyen, Ha Thi A1 - Norra, Stefan T1 - Geochemistry and evolution of groundwater resources in the context of salinization and freshening in the southernmost Mekong Delta, Vietnam JF - Journal of Hydrology: Regional Studies N2 - Study region: Ca Mau Province (CMP), Mekong Delta (MD), Vietnam. Study focus: Groundwater from deep aquifers is the most reliable source of freshwater in the MD but extensive overexploitation in the last decades led to the drop of hydraulic heads and negative environmental impacts. Therefore, a comprehensive groundwater investigation was conducted to evaluate its composition in the context of Quaternary marine transgression and regression cycles, geochemical processes as well as groundwater extraction. New hydrological insights for the region: The abundance of groundwater of Na-HCO3 type and distinct ion ratios, such as Na+/Cl-, indicate extensive freshwater intrusion in an initially saline hydrogeological system, with decreasing intensity from upper Pleistocene to deeper Miocene aquifers, most likely during the last marine regression phase 60-12 ka BP. Deviations from the conservative mixing line between the two endmembers seawater and freshwater are attributed to ion-exchange processes on mineral surfaces, making ion ratios in combination with a customized water type analysis a useful tool to distinguish between salinization and freshening processes. Elevated salinity in some areas is attributed to HCO3- generation by organic matter decomposition in marine sediments rather than to seawater intrusion. Nevertheless, a few randomly distributed locations show strong evidence of recent salinization in an early stage, which may be caused by the downwards migration of saline Holocene groundwater through natural and anthropogenic pathways into deep aquifers. KW - Ca Mau KW - Hydrogeology KW - Delta aquifer system KW - Salinity KW - Freshwater KW - Seawater intrusion Y1 - 2022 U6 - https://doi.org/10.1016/j.ejrh.2022.101010 SN - 2214-5818 VL - 40 PB - Elsevier CY - Amsterdam ER - TY - BOOK A1 - Bauer, Jürgen A1 - Englert, Wolfgang A1 - Garten, Gerd A1 - Mack, Wolfgang A1 - Meier, Uwe A1 - Morgeneyer, Frank T1 - Seydlitz Geographie 10 : Schülerbd., Sekundarstufe 2, Gymansium Y1 - 1997 SN - 3-507-52510-0 PB - Schroedel CY - Hannover ER - TY - THES A1 - Becker, Jörg T1 - Polnische Saisonarbeiter in Deutschland : Aspekte eines ausdifferenzierten Systems temporärer Arbeitsmigration Y1 - 2007 CY - Potsdam ER - TY - THES A1 - Becker, Jörg T1 - Geographie in der Postmoderne? : zur Kritik postmodernen Denkens in Stadtforschung und Anthropogeographie T2 - Potsdamer Geographische Forschungen Y1 - 1996 VL - 12 PB - Inst. für Geographie u. Geoökologie CY - Potsdam ER - TY - GEN A1 - Becker, Jörg A1 - Heller, Wilfried T1 - Die nichtdeutsche Bevölkerung in Ostdeutschland : eine Studie zur räumlichen Segregation und Wohnsituation. Projektleitung: Wilfried Heller T2 - Potsdamer geographische Forschungen Y1 - 1998 SN - 0940-9688 VL - 15 PB - Inst. für Geographie und Geoökologie CY - Potsdam ER - TY - JOUR A1 - Becker, Jörg A1 - Heller, Wilfried T1 - Polnische Saisonarbeiter in der Bundesrepublik Deutschland : politische und ökonomische Bedingungen eines spezifischen temporären Arbeitsmigrationssystems Y1 - 2002 ER - TY - JOUR A1 - Beeger, Helmut A1 - Bricks, Wolfgang A1 - Broscheit, Frank A1 - Bütow, Heike A1 - Bütow, Martin A1 - Englert, Wolfgang A1 - Gehrke, Albrecht A1 - Hallermann, Sigrun A1 - Jahn, Gert A1 - Kirsch, H. A1 - Klohn, Werner A1 - Markert, Wolfgang A1 - Meißgeier, Jürgen A1 - Mülders, Wolfgang A1 - Nicklaus, W. A1 - Reinhardt, Karl Heinz A1 - Robel, B. A1 - Schmidtke, Kurt-Dietmar A1 - Werner-Tokarski, D. T1 - Seydlitz Erdkunde 3 : Ausgabe Saarland Y1 - 1996 PB - Schroedel CY - Hannover ER - TY - JOUR A1 - Belina, Bernd T1 - Anglophones : If you want us to understand you, you will have to speak understandably! Y1 - 2005 SN - 0066-4812 ER - TY - JOUR A1 - Berndt, Christopher A1 - Yildirim, Cengiz A1 - Ciner, Attila A1 - Strecker, Manfred A1 - Ertunc, Gulgun A1 - Sarikaya, M. Akif A1 - Özcan, Orkan A1 - Ozturk, Tugba A1 - Kiyak, Nafiye Gunec T1 - Quaternary uplift of the northern margin of the Central Anatolian Plateau BT - New OSL dates of fluvial and delta-terrace deposits of the Kizilirmak River, Black Sea coast, Turkey JF - Quaternary science reviews : the international multidisciplinary research and review journal N2 - We analysed the interplay between coastal uplift, sea level change in the Black Sea, and incision of the Kizilirmak River in northern Turkey. These processes have created multiple co-genetic fluvial and marine terrace sequences that serve as excellent strain markers to assess the ongoing evolution of the Pontide orogenic wedge and the growth of the northern margin of the Central Anatolian Plateau. We used high-resolution topographic data, OSL ages, and published information on past sea levels to analyse the spatiotemporal evolution of these terraces; we derived a regional uplift model for the northward advancing orogenic wedge that supports the notion of laterally variable uplift rates along the flanks of the Pontides. The best-fit uplift model defines a constant long-term uplift rate of 0.28 +/- 0.07 m/ka for the last 545 ka. This model explains the evolution of the terrace sequence in light of active tectonic processes and superposed cycles of climate-controlled sea-level change. Our new data reveal regional uplift characteristics that are comparable to the inner sectors of the Central Pontides; accordingly, the rate of uplift diminishes with increasing distance from the main strand of the restraining bend of the North Anatolian Fault Zone (NAFZ). This spatial relationship between the regional impact of the restraining bend of the NAFZ and uplift of the Pontide wedge thus suggests a strong link between the activity of the NAFZ, deformation and uplift in the Pontide orogenic wedge, and the sustained lateral growth of the Central Anatolian Plateau flank. (C) 2018 Elsevier Ltd. All rights reserved. KW - Quaternary KW - OSL dating KW - Black Sea KW - Pontides KW - North Anatolian Fault Zone KW - Orogenic wedge KW - Kizilirmak River KW - MIS KW - Turkey Y1 - 2018 U6 - https://doi.org/10.1016/j.quascirev.2018.10.029 SN - 0277-3791 VL - 201 SP - 446 EP - 469 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Bernhardt, Anne A1 - Schwanghart, Wolfgang T1 - Where and why do submarine canyons remain connected to the shore during sea-level rise? BT - Insights from global topographic analysis and Bayesian regression JF - Geophysical research letters : GRL / American Geophysical Union N2 - The efficiency of sediment routing from land to the ocean depends on the position of submarine canyon heads with regard to terrestrial sediment sources. We aim to identify the main controls on whether a submarine canyon head remains connected to terrestrial sediment input during Holocene sea-level rise. Globally, we identified 798 canyon heads that are currently located at the 120m-depth contour (the Last Glacial Maximum shoreline) and 183 canyon heads that are connected to the shore (within a distance of 6 km) during the present-day highstand. Regional hotspots of shore-connected canyons are the Mediterranean active margin and the Pacific coast of Central and South America. We used 34 terrestrial and marine predictor variables to predict shore-connected canyon occurrence using Bayesian regression. Our analysis shows that steep and narrow shelves facilitate canyon-head connectivity to the shore. Moreover, shore-connected canyons occur preferentially along active margins characterized by resistant bedrock and high river-water discharge. KW - Bayesian statistics KW - headward erosion KW - seascape KW - shoreline KW - submarine KW - canyon KW - turbidity current Y1 - 2021 U6 - https://doi.org/10.1029/2020GL092234 SN - 0094-8276 SN - 1944-8007 VL - 48 IS - 10 PB - American Geophysical Union CY - Washington ER - TY - JOUR A1 - Bielcik, Milos A1 - Aguilar-Trigueros, Carlos A. A1 - Lakovic, Milica A1 - Jeltsch, Florian A1 - Rillig, Matthias C. T1 - The role of active movement in fungal ecology and community assembly JF - Movement Ecology N2 - Movement ecology aims to provide common terminology and an integrative framework of movement research across all groups of organisms. Yet such work has focused on unitary organisms so far, and thus the important group of filamentous fungi has not been considered in this context. With the exception of spore dispersal, movement in filamentous fungi has not been integrated into the movement ecology field. At the same time, the field of fungal ecology has been advancing research on topics like informed growth, mycelial translocations, or fungal highways using its own terminology and frameworks, overlooking the theoretical developments within movement ecology. We provide a conceptual and terminological framework for interdisciplinary collaboration between these two disciplines, and show how both can benefit from closer links: We show how placing the knowledge from fungal biology and ecology into the framework of movement ecology can inspire both theoretical and empirical developments, eventually leading towards a better understanding of fungal ecology and community assembly. Conversely, by a greater focus on movement specificities of filamentous fungi, movement ecology stands to benefit from the challenge to evolve its concepts and terminology towards even greater universality. We show how our concept can be applied for other modular organisms (such as clonal plants and slime molds), and how this can lead towards comparative studies with the relationship between organismal movement and ecosystems in the focus. KW - Filamentous fungi KW - Microbial community KW - Active movement KW - Modular organisms KW - Interference competition KW - Fungal space searching algorithms KW - Fungal foraging KW - Fungal highways KW - Clonal plants KW - Slime molds Y1 - 2019 U6 - https://doi.org/10.1186/s40462-019-0180-6 SN - 2051-3933 VL - 7 IS - 1 PB - BMC CY - London ER - TY - JOUR A1 - Bilbao-Lasa, Peru A1 - Jara-Muñoz, Julius A1 - Pedoja, Kevin A1 - Álvarez, Irantzu A1 - Aranburu, Arantza A1 - Iriarte, Eneko A1 - Galparsoro, Ibon T1 - Submerged marine terraces identification and an approach for numerical modeling the sequence formation in the Bay of Biscay (Northeastern Iberian Peninsula) JF - Frontiers in Earth Science N2 - Submerged sequences of marine terraces potentially provide crucial information of past sea-level positions. However, the distribution and characteristics of drowned marine terrace sequences are poorly known at a global scale. Using bathymetric data and novel mapping and modeling techniques, we studied a submerged sequence of marine terraces in the Bay of Biscay with the objective to identify the distribution and morphologies of submerged marine terraces and the timing and conditions that allowed their formation and preservation. To accomplish the objectives a high-resolution bathymetry (5 m) was analyzed using Geographic Information Systems and TerraceM(R). The successive submerged terraces were identified using a Surface Classification Model, which linearly combines the slope and the roughness of the surface to extract fossil sea-cliffs and fossil rocky shore platforms. For that purpose, contour and hillshaded maps were also analyzed. Then, shoreline angles, a geomorphic marker located at the intersection between the fossil sea-cliff and platform, were mapped analyzing swath profiles perpendicular to the isobaths. Most of the submerged strandlines are irregularly preserved throughout the continental shelf. In summary, 12 submerged terraces with their shoreline angles between approximately: -13 m (T1), -30 and -32 m (T2), -34 and 41 m (T3), -44 and -47 m (T4), -49 and 53 m (T5), -55 and 58 m (T6), -59 and 62 m (T7), -65 and 67 m (T8), -68 and 70 m (T9), -74 and -77 m (T10), -83 and -86 m (T11) and -89 and 92 m (T12). Nevertheless, the ones showing the best lateral continuity and preservation in the central part of the shelf are T3, T4, T5, T7, T8, and T10. The age of the terraces has been estimated using a landscape evolution model. To simulate the formation and preservation of submerged terraces three different scenarios: (i) 20-0 ka; (ii) 128-0 ka; and (iii) 128-20 ka, were compared. The best scenario for terrace generation was between 128 and 20 Ka, where T3, T5, and T7 could have been formed. KW - marine terrace KW - submerged sequence KW - digital bathymetric model KW - TerraceM KW - numerical modeling KW - Bay of Biscay Y1 - 2020 U6 - https://doi.org/10.3389/feart.2020.00047 SN - 2296-6463 VL - 8 IS - 47 SP - 1 EP - 20 PB - Frontiers Media CY - Lausanne ER - TY - JOUR A1 - Bindi, Dino A1 - Spallarossa, D. A1 - Picozzi, M. A1 - Scafidi, D. A1 - Cotton, Fabrice Pierre T1 - Impact of magnitude selection on aleatory variability associated with ground-motion prediction equations BT - Part I-Local, Energy, and Moment Magnitude Calibration and Stress-Drop Variability in Central Italy JF - Bulletin of the Seismological Society of America N2 - In this study, we analyzed 10 yrs of seismicity in central Italy from 2008 to 2017, a period witnessing more than 1400 earthquakes in the magnitude range 2.5≤Mw≤6.5⁠. The data set includes the main sequences that have occurred in the area, including those associated with the 2009 Mw 6.3 L'Aquila earthquake and the 2016–2017 sequence (⁠Mw 6.2 Amatrice, Mw 6.1 Visso, and Mw 6.5 Norcia earthquakes). We calibrated a local magnitude scale, investigating the impact of changing the reference distance at which the nonparametric attenuation is tied to the zero‐magnitude attenuation function for southern California. We also developed an attenuation model to compute the radiated seismic energy (⁠Es⁠) from the time integral of the squared ground‐motion velocity. Seismic moment (⁠M0⁠) and stress drop (⁠Δσ⁠) were estimated for each earthquake by fitting a ω‐square model to the source spectra obtained by applying a nonparametric spectral inversion. The Δσ‐values vary over three orders of magnitude from about 0.1 to 10 MPa, the larger values associated with the mainshocks. The Δσ‐values describe a lognormal distribution with mean and standard deviation equal to log(Δσ)=(−0.25±0.45) (i.e., the mean Δσ is 0.57 MPa, with a 95% confidence interval from 0.08 to 4.79 MPa). The Δσ variability introduces a spread in the distribution of seismic energy versus moment, with differences in energy up two orders of magnitudes for earthquakes with the same moment. The variability in the high‐frequency spectral levels is captured by the local magnitude (⁠ML⁠), which scales with radiated energy as ML=(−1.59+0.52logEs) for logEs≤10.26 and ML=(−1.38+0.50logEs) otherwise. As the peak ground velocity increases with increasing Δσ⁠, local and energy magnitudes perform better than moment magnitude as predictors for the shaking potential. The availability of different magnitude scales and source parameters for a large earthquake population will help characterize the between‐event ground‐motion variability in central Italy. Y1 - 2018 U6 - https://doi.org/10.1785/0120170356 SN - 0037-1106 SN - 1943-3573 VL - 108 IS - 3A SP - 1427 EP - 1442 PB - Seismological Society of America CY - Albany ER - TY - JOUR A1 - Bloschl, Günter A1 - Zehe, Erwin T1 - Invited commentary : on hydrological predictability Y1 - 2005 ER - TY - BOOK A1 - Blume, Hans-Peter A1 - Blumenstein, Oswald A1 - Böhme, M. T1 - Empfehlungen des Wissenschaftlich-technischen Beirates Rieselfelder (WTB) beim Landesumweltamt Brandenburg zur Rieselfeldnachnutzung im Umland von Berlin Y1 - 1995 ER - TY - JOUR A1 - Blume, Theresa A1 - Bauer, Andreas A1 - Bronstert, Axel T1 - Experimental techniques for the Investigation of Runoff Processes in a Small Catchment in the Chilean Andes Y1 - 2004 SN - 3-937758-18-6 ER - TY - JOUR A1 - Blume, Theresa A1 - Schneider, Lisa A1 - Güntner, Andreas T1 - Comparative analysis of throughfall observations in six different forest stands BT - Influence of seasons, rainfall- and stand characteristics JF - Hydrological processes N2 - Throughfall, that is, the fraction of rainfall that passes through the forest canopy, is strongly influenced by rainfall and forest stand characteristics which are in turn both subject to seasonal dynamics. Disentangling the complex interplay of these controls is challenging, and only possible with long-term monitoring and a large number of throughfall events measured in parallel at different forest stands. We therefore based our analysis on 346 rainfall events across six different forest stands at the long-term terrestrial environmental observatory TERENO Northeast Germany. These forest stands included pure stands of beech, pine and young pine, and mixed stands of oak-beech, pine-beech and pine-oak-beech. Throughfall was overall relatively low, with 54-68% of incident rainfall in summer. Based on the large number of events it was possible to not only investigate mean or cumulative throughfall but also its statistical distribution. The distributions of throughfall fractions show distinct differences between the three types of forest stands (deciduous, mixed and pine). The distributions of the deciduous stands have a pronounced peak at low throughfall fractions and a secondary peak at high fractions in summer, as well as a pronounced peak at higher throughfall fractions in winter. Interestingly, the mixed stands behave like deciduous stands in summer and like pine stands in winter: their summer distributions are similar to the deciduous stands but the winter peak at high throughfall fractions is much less pronounced. The seasonal comparison further revealed that the wooden components and the leaves behaved differently in their throughfall response to incident rainfall, especially at higher rainfall intensities. These results are of interest for estimating forest water budgets and in the context of hydrological and land surface modelling where poor simulation of throughfall would adversely impact estimates of evaporative recycling and water availability for vegetation and runoff. KW - forest hydrology KW - forest stand characteristics KW - interception KW - leaf area KW - index KW - rainfall characteristics KW - seasonal effects KW - stratified event KW - analysis KW - throughfall KW - tree species effects Y1 - 2021 U6 - https://doi.org/10.1002/hyp.14461 SN - 0885-6087 SN - 1099-1085 VL - 36 IS - 3 PB - Wiley CY - Hoboken ER - TY - JOUR A1 - Blume, Theresa A1 - Weisbrod, N. A1 - Selker, J. S. T1 - On the critical salt concentrations for particle detachment in homogeneous sand and heterogeneous Hanford sediments N2 - One of the mechanisms for sudden particle release is a decrease in groundwater salt concentration to below the critical salt concentration (CSC), where repulsion forces between fine particles and matrix surfaces exceed binding forces. In this paper, an attempt was made to determine the CSC with both batch and column experiments. Two types of sediments were tested: (a) homogeneous quartz sand and (b) mineralogically heterogeneous sediment, taken from the Hanford formation in southeast Washington. Stepwise decreasing concentrations of NaNO3 solution were applied until fine particles were released from the sediments and the CSC was determined. Two methods were used to minimize the interference of particle release due to physical forces (shear stress) in the batch experiments: (a) postexperimental correction for mechanical effects, and (b) minimization of shear stress on the sediments during the experiment. CSCs from batch experiments were compared to those obtained from column experiments. It was found that both the amount of particles released and the CSC were an order of magnitude higher for the Hanford sediment than for the Sand. Moreover, particle detachment above the CSC was observed for the Hanford sediment. This suggests that the concept of sharp CSCs could be problematic in natural heterogeneous sediments where fine particles may mobilize at salt concentrations significantly above the CSC, thus unexpectedly enhancing colloid-facilitated transport of contaminants. (C) 2004 Elsevier B.V. All rights reserved Y1 - 2005 ER - TY - BOOK A1 - Blumenstein, Oswald T1 - Anorganische Schadstoffe in Rieselfeldböden - Zustand und Dynamik Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Fortschreiten ohne Wiederkehr : die Merkmale poly-/metahemerober Geosysteme Y1 - 1997 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Aspekte der Anwendung naturwissenschaftlicher Konzeptionen in der Geosystemforschung Y1 - 1994 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Die Regionalisierung - Naturgesetze versus Raumansatz Y1 - 1998 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Ausgewählte theoretische Grundpositionen : geoökologische Evolutionsmechanismen und Nutzungsansätze hemerober Geosysteme ; dargestellt am Beispiel der Rieselfelder Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Geoecolocigal problems in the use of morphostructural features in the young moraine area SW Berlin Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Geoökologie im Jungmoränengebiet südwestlich von Berlin Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Geoökologische Evolutionsmechanismen und Nutzungsansätze hemerober Geosysteme : dargestellt am Beispiel der Rieselfelder Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Die Strukturgenese in hemeroben Geosystemen des jungpleistozänen Landschaftsraumes im Potsdamer Umland und geoökologische Probleme ihrer Nutzung Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Geoökologische Aspekte des Evolutionsprozesses hemerober Geosysteme im jungpleistozänen Raum JF - Potsdamer Geographische Forschungen Y1 - 1996 VL - 13 PB - Inst. für Geographie und Geoökologie CY - Potsdam ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Boden und Wasser als Kompartimente der Landschaft JF - Studienmaterialien des Weiterbildenden Studiums Umweltschutz für Bildung und Hauswirtschaft Y1 - 1993 SN - 3-929757-15-X PB - Univ; Techn. Univ CY - Potsdam; Magdeburg ER - TY - THES A1 - Blumenstein, Oswald T1 - Geoökologische Aspekte des Evolutionsprozesses hemerober Geosysteme im jungpleistozänen Raum Y1 - 1996 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Geosystemare Aspekte der nutzungsbedingten Veränderungen von Struktur und Dynamik in Rieselfeldökosystemen Y1 - 1996 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Aktuelle Belastung und Entwicklungspotentiale nordostdeutscher Geosysteme - dargestellt am Beispiel der Rieselfelder südlich Berlins Y1 - 1997 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - First Results of Soil Investigation Y1 - 2001 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Preface Y1 - 2001 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Vorwort Y1 - 2001 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Investigation of Environmental Quality and Social Structures in a Mining Area in the North West Province of South Africa Y1 - 2000 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Veränderungen geoökologischer Wechselwirkungen durch die Abwasserverrieselung und ihre Konsequenzen Y1 - 2000 ER - TY - JOUR A1 - Blumenstein, Oswald T1 - Die Schadstoffverlagerung aus Böden ehemals militärisch genutzter Areale in ein angrenzendes Niedermoorgebiet Y1 - 2000 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Bechmann, Wolfgang A1 - Bukowsky, Heinz T1 - Rieselfeldgebiet Berlin-Süd : multivalente Beurteilung der ökologischen Relevanz von Last- und Schadstoffen ; Aufbau eines Bodeninformationssystems ; 3.5.3. Zwischenbericht 6 Y1 - 1994 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Bechmann, Wolfgang A1 - Bukowsky, Heinz T1 - Rieselfeldgebiet Berlin-Süd : multivalente Beurteilung der ökologischen Relevanz von Last- und Schadstoffen ; Aufbau eines Bodeninformationssystems ; 3.5.4. Abschlußbericht 12 Y1 - 1994 PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Blumenstein, Oswald A1 - Bechmann, Wolfgang A1 - Bukowsky, Heinz T1 - Rieselfelder südlich Berlins : Altlasten, Grundwasser, Oberflächenwasser. Teilprojekt 1 : Beurteilung des Ist-Zustandes der Bodenzone ; 3.6.5. Abschlussbericht 7 Y1 - 1995 PB - Univ. CY - Potsdam ER - TY - BOOK A1 - Blumenstein, Oswald A1 - Bechmann, Wolfgang A1 - Bukowsky, Heinz T1 - Rieselfelder südlich Berlins : Altlasten, Grundwasser, Oberflächenwasser. Teilprojekt 1 : Beurteilung des Ist-Zustandes der Bodenzone ; 3.6.4. Zwischenbericht 7 Y1 - 1994 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Bukowsky, Heinz A1 - Fischer, Franka A1 - Geldmacher, Karl A1 - Schubert, Rudolf T1 - Zur Indikation von Remobilisierungsprozessen unter nicht mehr genutzten Rieselfeldflächen N2 - Im Rieselfeldgebiet Berlin-Süd verursachte die Abwasserbeaufschlagung Veränderungen in der Struktur des Geosystems und in seinen Interaktionen mit der Umgebung. Bei der Einstellung des Abwasserinputs unterliegt das Bodensubstrat einer intensiven Nettomineralisierung, einer Zunahme der Acidität sowie Abnahme der Pufferkapazität. Sowohl der Ap- und der Al-Horizont als auch die beiden Unterbodenhorizonte Bts bzw. Cv wiesen charakteristische Veränderungen der Schwermetallgehalte, der organischen Bodensubstanz sowie der Kationenaustauschkapazität auf. Die Sickerwasserproben zeigten generell eine Zunahme der Acidität und der Konzentration biophiler Stoffspecies bzw. von Schwermetallen, wobei in allen Untersuchungsebenen eine gleichsinnige Beschaffenheitsänderung erfolgte. Y1 - 1997 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Bukowsky, Heinz A1 - Fischer, Franka A1 - Schubert, Rudolf T1 - Rieselfelder südlich Berlins : Altlasten, Grundwasser, Oberflächenwasser. Teilprojekt 1 : Zur Änderung der Sickerwasserbeschaffenheit unter einer typischen Rieselfeldfläche nach Einstellung der Abwasserbeaufschlagung ; ergänzende Studie JF - Gemeinsamer Abschlußbericht Y1 - 1995 VL - 12 PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Bukowsky, Heinz A1 - Kraudelt, Heide A1 - Cerovsky, D. T1 - First Results of Soil Investigations in a Mining Area of South Africa Y1 - 2001 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Fischer, Franka A1 - Geldmacher, Karl A1 - Schubert, Rudolf T1 - Rieselfelder südlich Berlins : neue Nutzungskonzepte für eine kontaminierte Landschaft Y1 - 1995 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Fischer, Franka A1 - Schubert, Rudolf T1 - Bodenveränderungen durch Abwasser Y1 - 1997 ER - TY - JOUR A1 - Blumenstein, Oswald A1 - Grunewald, Karsten A1 - Portmann, Hans-Dieter T1 - Rieselfelder südlich Berlins : neue Nutzungskonzepte ohne Konflikte? Y1 - 1994 ER - TY - BOOK A1 - Blumenstein, Oswald A1 - Grunewald, Karsten A1 - Schubert, Rudolf T1 - Das Altlastengebiet Rieselfelder Berlin-Süd - eine geoökologische Herausforderung T3 - Potsdamer geographische Forschungen Y1 - 1991 SN - 0940-9688 VL - 1 PB - Fachber. Geogr. d. Univ. Potsdam CY - Potsdam ER -