TY  - GEN
A1  - Licht, Alexis
A1  - Dupont-Nivet, Guillaume
A1  - Pullen, Alex
A1  - Kapp, Paul
A1  - Abels, Hemmo A.
A1  - Lai, Zulong
A1  - Guo, ZhaoJie
A1  - Abell, Jordan
A1  - Giesler, Dominique
T1  - Resilience of the Asian atmospheric circulation shown by paleogene dust provenance
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The onset of modern central Asian atmospheric circulation is traditionally linked to the interplay of surface uplift of the Mongolian and Tibetan-Himalayan orogens, retreat of the Paratethys sea from central Asia and Cenozoic global cooling. Although the role of these players has not yet been unravelled, the vast dust deposits of central China support the presence of arid conditions and modern atmospheric pathways for the last 25 million years (Myr). Here, we present provenance data from older (42-33 Myr) dust deposits, at a time when the Tibetan Plateau was less developed, the Paratethys sea still present in central Asia and atmospheric pCO(2) much higher. Our results show that dust sources and near-surface atmospheric circulation have changed little since at least 42 Myr. Our findings indicate that the locus of central Asian high pressures and concurrent aridity is a resilient feature only modulated by mountain building, global cooling and sea retreat.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1114 
KW  - Chinese Loess Plateau
KW  - last glacial maximum
KW  - Tibetan Plateau
KW  - Yellow-River
KW  - climate
KW  - basin
KW  - evolution
KW  - ardification
KW  - monsoons
KW  - desert
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-436381
SN  - 1866-8372
IS  - 1114
ER  - 
TY  - GEN
A1  - Xiong, Chao
A1  - Stolle, Claudia
A1  - Lühr, Hermann
A1  - Park, Jaeheung
A1  - Fejer, Bela G.
A1  - Kervalishvili, Guram N.
T1  - Scale analysis of equatorial plasma irregularities derived from Swarm constellation
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - In this study, we investigated the scale sizes of equatorial plasma irregularities (EPIs) using measurements from the Swarm satellites during its early mission and final constellation phases. We found that with longitudinal separation between Swarm satellites larger than 0.4°, no significant correlation was found any more. This result suggests that EPI structures include plasma density scale sizes less than 44 km in the zonal direction. During the Swarm earlier mission phase, clearly better EPI correlations are obtained in the northern hemisphere, implying more fragmented irregularities in the southern hemisphere where the ambient magnetic field is low. The previously reported inverted-C shell structure of EPIs is generally confirmed by the Swarm observations in the northern hemisphere, but with various tilt angles. From the Swarm spacecrafts with zonal separations of about 150 km, we conclude that larger zonal scale sizes of irregularities exist during the early evening hours (around 1900 LT).
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1112 
KW  - Equatorial plasma irregularities
KW  - ionospheric scale lengths
KW  - Swarm constellation
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-431842
SN  - 1866-8372
IS  - 1112
ER  - 
TY  - GEN
A1  - Radosavljevic, Boris
A1  - Lantuit, Hugues
A1  - Pollard, Wayne
A1  - Overduin, Pier Paul
A1  - Couture, Nicole
A1  - Sachs, Torsten
A1  - Helm, Veit
A1  - Fritz, Michael
T1  - Erosion and flooding-threats to coastal Infrastructure in the Arctic
BT  - a case study from Herschel Island, Yukon Territory, Canada
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Arctic coastal infrastructure and cultural and archeological sites are increasingly vulnerable to erosion and flooding due to amplified warming of the Arctic, sea level rise, lengthening of open water periods, and a predicted increase in frequency of major storms. Mitigating these hazards necessitates decision-making tools at an appropriate scale. The objectives of this paper are to provide such a tool by assessing potential erosion and flood hazards at Herschel Island, a UNESCO World Heritage candidate site. This study focused on Simpson Point and the adjacent coastal sections because of their archeological, historical, and cultural significance. Shoreline movement was analyzed using the Digital Shoreline Analysis System (DSAS) after digitizing shorelines from 1952, 1970, 2000, and 2011. For purposes of this analysis, the coast was divided in seven coastal reaches (CRs) reflecting different morphologies and/or exposures. Using linear regression rates obtained from these data, projections of shoreline position were made for 20 and 50 years into the future. Flood hazard was assessed using a least cost path analysis based on a high-resolution light detection and ranging (LiDAR) dataset and current Intergovernmental Panel on Climate Change sea level estimates. Widespread erosion characterizes the study area. The rate of shoreline movement in different periods of the study ranges from −5.5 to 2.7 m·a⁻¹ (mean −0.6 m·a⁻¹). Mean coastal retreat decreased from −0.6 m·a⁻¹ to −0.5 m·a⁻¹, for 1952–1970 and 1970–2000, respectively, and increased to −1.3 m·a⁻¹ in the period 2000–2011. Ice-rich coastal sections most exposed to wave attack exhibited the highest rates of coastal retreat. The geohazard map combines shoreline projections and flood hazard analyses to show that most of the spit area has extreme or very high flood hazard potential, and some buildings are vulnerable to coastal erosion. This study demonstrates that transgressive forcing may provide ample sediment for the expansion of depositional landforms, while growing more susceptible to overwash and flooding.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 996 
KW  - Arctic
KW  - coastal erosion
KW  - UNESCO
KW  - vulnerability mapping;
KW  - permafrost coasts
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-432279
SN  - 1866-8372
IS  - 996
ER  - 
TY  - GEN
A1  - Eckert, Sebastian Oliver
A1  - Miedema, Piter
A1  - Quevedo, Wilson
A1  - O'Cinneide, B.
A1  - Fondell, Mattis
A1  - Beye, Martin
A1  - Pietzsch, Annette
A1  - Ross, Matthew R.
A1  - Khalil, Munira
A1  - Föhlisch, Alexander
T1  - Molecular structures and protonation state of 2-Mercaptopyridine in aqueous solution
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The speciation of 2-Mercaptopyridine in aqueous solution has been investigated with nitrogen 1s Near Edge X-ray Absorption Fine Structure spectroscopy and time dependent Density Functional Theory. The prevalence of distinct species as a function of the solvent basicity is established. No indications of dimerization towards high concentrations are found. The determination of different molecular structures of 2-Mercaptopyridine in aqueous solution is put into the context of proton-transfer in keto-enol and thione-thiol tautomerisms. (C) 2016 The Authors. Published by Elsevier B.V.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 953 
KW  - ray-emission-spectroscopy
KW  - x-ray
KW  - hydroxypyridine-pyridone
KW  - protomeric equilibria
KW  - self-association
KW  - CU(110)
KW  - valence
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-437473
SN  - 1866-8372
IS  - 953
SP  - 103
EP  - 106
ER  - 
TY  - GEN
A1  - Gallego-Llorente, Marcos
A1  - Sarah, Connell
A1  - Jones, Eppie R.
A1  - Merrett, Deborah C.
A1  - Jeon, Y.
A1  - Eriksson, Anders
A1  - Siska, Veronika
A1  - Gamba, Cristina
A1  - Meiklejohn, Christopher
A1  - Beyer, Robert
A1  - Jeon, Sungwon
A1  - Cho, Yun Sung
A1  - Hofreiter, Michael
A1  - Bhak, Jong
A1  - Manica, Andrea
A1  - Pinhasi, Ron
T1  - The genetics of an early Neolithic pastoralist from the Zagros, Iran
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The agricultural transition profoundly changed human societies. We sequenced and analysed the first genome (1.39x) of an early Neolithic woman from Ganj Dareh, in the Zagros Mountains of Iran, a site with early evidence for an economy based on goat herding, ca. 10,000 BP. We show that Western Iran was inhabited by a population genetically most similar to hunter-gatherers from the Caucasus, but distinct from the Neolithic Anatolian people who later brought food production into Europe. The inhabitants of Ganj Dareh made little direct genetic contribution to modern European populations, suggesting those of the Central Zagros were somewhat isolated from other populations of the Fertile Crescent. Runs of homozygosity are of a similar length to those from Neolithic farmers, and shorter than those of Caucasus and Western Hunter-Gatherers, suggesting that the inhabitants of Ganj Dareh did not undergo the large population bottleneck suffered by their northern neighbours. While some degree of cultural diffusion between Anatolia, Western Iran and other neighbouring regions is possible, the genetic dissimilarity between early Anatolian farmers and the inhabitants of Ganj Dareh supports a model in which Neolithic societies in these areas were distinct.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 952 
KW  - whole-genome association
KW  - ancient
KW  - domestication
KW  - agriculture
KW  - mountains
KW  - diffusion
KW  - migration
KW  - admixture
KW  - patterns
KW  - sequence
KW  - archaeology
KW  - biological anthropology
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-439355
SN  - 1866-8372
IS  - 952
ER  - 
TY  - GEN
A1  - Werner, Peter
A1  - Münzberg, Marvin
A1  - Hass, Roland
A1  - Reich, Oliver
T1  - Process analytical approaches for the coil-to-globule transition of poly(N-isopropylacrylamide) in a concentrated aqueous suspension
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The coil-to-globule transition of poly(N-isopropylacrylamide) (PNIPAM) microgel particles suspended in water has been investigated in situ as a function of heating and cooling rate with four optical process analytical technologies (PAT), sensitive to structural changes of the polymer. Photon Density Wave (PDW) spectroscopy, Focused Beam Reflectance Measurements (FBRM), turbidity measurements, and Particle Vision Microscope (PVM) measurements are found to be powerful tools for the monitoring of the temperature-dependent transition of such thermo-responsive polymers. These in-line technologies allow for monitoring of either the reduced scattering coefficient and the absorption coefficient, the chord length distribution, the reflected intensities, or the relative backscatter index via in-process imaging, respectively. Varying heating and cooling rates result in rate-dependent lower critical solution temperatures (LCST), with different impact of cooling and heating. Particularly, the data obtained by PDW spectroscopy can be used to estimate the thermodynamic transition temperature of PNIPAM for infinitesimal heating or cooling rates. In addition, an inverse hysteresis and a reversible building of micrometer-sized agglomerates are observed for the PNIPAM transition process.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 944 
KW  - poly(N-isopropylacrylamide)
KW  - Photon Density Wave spectroscopy
KW  - Focused Beam Reflectance Measurement
KW  - turbidity measurement
KW  - Particle Vision Microscope measurement
KW  - rate-dependent lower critical solution temperature
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-431162
SN  - 1866-8372
IS  - 944
SP  - 807
EP  - 819
ER  - 
TY  - GEN
A1  - Rajasundaram, Dhivyaa
A1  - Selbig, Joachim
T1  - More effort — more results
BT  - recent advances in integrative ‘omics’ data analysis
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The development of 'omics' technologies has progressed to address complex biological questions that underlie various plant functions thereby producing copious amounts of data. The need to assimilate large amounts of data into biologically meaningful interpretations has necessitated the development of statistical methods to integrate multidimensional information. Throughout this review, we provide examples of recent outcomes of 'omics' data integration together with an overview of available statistical methods and tools.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 923 
KW  - principal component
KW  - plant biology
KW  - package
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-442639
SN  - 1866-8372
IS  - 923
SP  - 57
EP  - 61
ER  - 
TY  - GEN
A1  - Schmidt, Katja
A1  - Walz, Ariane
A1  - Jones, Isobel
A1  - Metzger, Marc J.
T1  - The sociocultural value of upland regions in the vicinity of cities in comparison with urban green spaces
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Mountain and upland regions provide a wide range of ecosystem services to residents and visitors. While ecosystem research in mountain regions is on the rise, the linkages between sociocultural benefits and ecological systems remain little explored. Mountainous regions close to urban areas provide numerous benefits to a large number of individuals, suggesting a high social value, particularly for cultural ecosystem services. We explored and compared visitors' valuation of ecosystem services in the Pentland Hills, an upland range close to the city of Edinburgh, Scotland, and urban green spaces within Edinburgh. Based on 715 responses to user surveys in both study areas, we identified intense use and high social value for both areas. Several ecosystem services were perceived as equally important in both areas, including many cultural ecosystem services. Significant differences were revealed in the value of physically using nature, which Pentland Hills users rated more highly than those in the urban green spaces, and of mitigation of pollutants and carbon sequestration, for which the urban green spaces were valued more highly. Major differences were further identified for preferences in future land management, with nature-oriented management preferred by about 57% of the interviewees in the Pentland Hills, compared to 31% in the urban parks. The study highlights the substantial value of upland areas in close vicinity to a city for physically using and experiencing nature, with a strong acceptance of nature conservation.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 920 
KW  - ecosystem services
KW  - mountains near cities
KW  - urban green spaces
KW  - social valuation
KW  - perception
KW  - preferences in land management
KW  - Scotland
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-442010
SN  - 1866-8372
IS  - 920
SP  - 465
EP  - 474
ER  - 
TY  - GEN
A1  - Walz, Ariane
A1  - Grêt-Regamey, Adrienne
A1  - Lavorel, Sandra
T1  - Social valuation of ecosystem services in mountain regions
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 917 
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-442031
SN  - 1866-8372
IS  - 917
SP  - 1985
EP  - 1987
ER  - 
TY  - GEN
A1  - Schmidt, Katja
A1  - Sachse, René
A1  - Walz, Ariane
T1  - Current role of social benefits in ecosystem service assessments
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Ecosystem services have a significant impact on human wellbeing. While ecosystem services are frequently represented by monetary values, social values and underlying social benefits remain under explored. The purpose of this study is to assess whether and how social benefits have been explicitly addressed within socio-economic and socio-cultural ecosystem services research, ultimately allowing a better understanding between ecosystem services and human well-being. In this paper, we reviewed 115 international primary valuation studies and tested four hypotheses associated to the identification of social benefits of ecosystem services using logistic regressions. Tested hypotheses were that (1) social benefits are mostly derived in studies that assess cultural ecosystem services as opposed to other ecosystem service types, (2) there is a pattern of social benefits and certain cultural ecosystem services assessed simultaneously, (3) monetary valuation techniques go beyond expressing monetary values and convey social benefits, and (4) directly addressing stakeholder's views the consideration of social benefits in ecosystem service assessments. Our analysis revealed that (1) a variety of social benefits are valued in studies that assess either of the four ecosystem service types, (2) certain social benefits are likely to co-occur in combination with certain cultural ecosystem services, (3) of the studies that employed monetary valuation techniques, simulated market approaches overlapped most frequently with the assessment of social benefits and (4) studies that directly incorporate stakeholder's views were more likely to also assess social benefits. (C) 2016 Elsevier B.V. All rights reserved.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 915 
KW  - literature review
KW  - non-monetary valuation
KW  - monetary valuation
KW  - social valuation
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-442024
SN  - 1866-8372
IS  - 915
SP  - 49
EP  - 64
ER  -