TY  - JOUR
A1  - Zyla, Benjamin
T1  - Außenpolitisches Selbstverständnis
JF  - WeltTrends-Papiere
KW  - Außenpolitik
KW  - Interessen
KW  - Deutschland
KW  - foreign Policy
KW  - national interests
KW  - Germany
Y1  - 2011
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-62791
SN  - 1864-0656
IS  - 20
SP  - 38
EP  - 41
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Zielhofer, Christoph
A1  - Schmidt, Johannes
A1  - Reiche, Niklas
A1  - Tautenhahn, Marie
A1  - Ballasus, Helen
A1  - Burkart, Michael
A1  - Linstädter, Anja
A1  - Dietze, Elisabeth
A1  - Kaiser, Knut
A1  - Mehler, Natascha
T1  - The lower Havel River Region (Brandenburg, Germany)
BT  - a 230-Year-Long historical map record indicates a decrease in surface water areas and groundwater levels
JF  - Water
N2  - Instrumental data show that the groundwater and lake levels in Northeast Germany have decreased over the past decades, and this process has accelerated over the past few years. In addition to global warming, the direct influence of humans on the local water balance is suspected to be the cause. Since the instrumental data usually go back only a few decades, little is known about the multidecadal to centennial-scale trend, which also takes long-term climate variation and the long-term influence by humans on the water balance into account. This study aims to quantitatively reconstruct the surface water areas in the Lower Havel Inner Delta and of adjacent Lake Gulpe in Brandenburg. The analysis includes the calculation of surface water areas from historical and modern maps from 1797 to 2020. The major finding is that surface water areas have decreased by approximately 30% since the pre-industrial period, with the decline being continuous. Our data show that the comprehensive measures in Lower Havel hydro-engineering correspond with groundwater lowering that started before recent global warming. Further, large-scale melioration measures with increasing water demands in the upstream wetlands beginning from the 1960s to the 1980s may have amplified the decline in downstream surface water areas.
KW  - long-term hydrological changes
KW  - historical maps
KW  - review of written
KW  - sources
KW  - preindustrial to industrial period
KW  - hydro-engineering history;
KW  - effects of global warming
KW  - drying trend
KW  - wetlands
KW  - drainage works to
KW  - create cropland
KW  - Lower Havel River Region
KW  - Brandenburg
KW  - Germany
Y1  - 2022
U6  - https://doi.org/10.3390/w14030480
SN  - 2073-4441
VL  - 14
IS  - 3
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Wutzler, Bianca
A1  - Hudson, Paul
A1  - Thieken, Annegret
T1  - Adaptation strategies of flood-damaged businesses in Germany
JF  - Frontiers in water
N2  - Flood risk management in Germany follows an integrative approach in which both private households and businesses can make an important contribution to reducing flood damage by implementing property-level adaptation measures. While the flood adaptation behavior of private households has already been widely researched, comparatively less attention has been paid to the adaptation strategies of businesses. However, their ability to cope with flood risk plays an important role in the social and economic development of a flood-prone region. Therefore, using quantitative survey data, this study aims to identify different strategies and adaptation drivers of 557 businesses damaged by a riverine flood in 2013 and 104 businesses damaged by pluvial or flash floods between 2014 and 2017. Our results indicate that a low perceived self-efficacy may be an important factor that can reduce the motivation of businesses to adapt to flood risk. Furthermore, property-owners tended to act more proactively than tenants. In addition, high experience with previous flood events and low perceived response costs could strengthen proactive adaptation behavior. These findings should be considered in business-tailored risk communication.
KW  - risk management
KW  - climate change adaptation
KW  - floods
KW  - disaster risk
KW  - reduction
KW  - Germany
KW  - precaution
KW  - emergency management
Y1  - 2022
U6  - https://doi.org/10.3389/frwa.2022.932061
SN  - 2624-9375
VL  - 4
PB  - Frontiers Media
CY  - Lausanne
ER  - 
TY  - JOUR
A1  - Wutzler, Bianca
A1  - Hudson, Paul
A1  - Thieken, Annegret
T1  - Adaptation strategies of flood-damaged businesses in Germany
JF  - Frontiers in Water
N2  - Flood risk management in Germany follows an integrative approach in which both private households and businesses can make an important contribution to reducing flood damage by implementing property-level adaptation measures. While the flood adaptation behavior of private households has already been widely researched, comparatively less attention has been paid to the adaptation strategies of businesses. However, their ability to cope with flood risk plays an important role in the social and economic development of a flood-prone region. Therefore, using quantitative survey data, this study aims to identify different strategies and adaptation drivers of 557 businesses damaged by a riverine flood in 2013 and 104 businesses damaged by pluvial or flash floods between 2014 and 2017. Our results indicate that a low perceived self-efficacy may be an important factor that can reduce the motivation of businesses to adapt to flood risk. Furthermore, property-owners tended to act more proactively than tenants. In addition, high experience with previous flood events and low perceived response costs could strengthen proactive adaptation behavior. These findings should be considered in business-tailored risk communication.
KW  - risk management
KW  - climate change adaptation
KW  - floods
KW  - disaster risk reduction
KW  - Germany
KW  - precaution
KW  - emergency management
Y1  - 2022
U6  - https://doi.org/10.3389/frwa.2022.932061
SN  - 2624-9375
PB  - Frontiers Media SA
CY  - Lausanne, Schweiz
ER  - 
TY  - JOUR
A1  - Woop, Gerry
T1  - Probleme europäischer Sicherheitspolitik
JF  - WeltTrends-Papiere
N2  - Inhalt: NATO EU Herausforderungen
KW  - Polen
KW  - Europäische Union
KW  - Deutschland
KW  - Integration
KW  - Vertiefung
KW  - Poland
KW  - European Union
KW  - Germany
KW  - Integration
KW  - Consolidation
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-62975
SN  - 1864-0656
IS  - 15
SP  - 87
EP  - 95
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Wende, Wolfgang
A1  - Wojtkiewicz, Wera
A1  - Marschall, Ilke
A1  - Heiland, Stefan
A1  - Lipp, Torsten
A1  - Reinke, Markus
A1  - Schaal, Peter
A1  - Schmidt, Catrin
T1  - Putting the plan into practice implementation of proposals for measures of local landscape plans
JF  - Landscape research
N2  - The knowledge of the effectiveness of local landscape planning in Germany is in the main limited to particular cases and derives mostly from qualitative single case studies. This applies especially to the implementation of measures defined by landscape plans. To fill that gap, the paper focuses on the implementation of those measures. Furthermore, it discusses the factors and framework conditions which are crucial for this implementation. The potential factors and conditions of influence were derived from theory and compiled in 20 investigation hypotheses. In order to gain information on the execution of the measures, 28 randomly selected plans were first analysed, then interviews were carried out with administration representatives. It can be stated that landscape planning has positively influenced the development of nature and landscape in the investigated municipalities. A considerable number of measures had been implemented, although landscape planning as a supply-side instrument proposes generally a very large number of measures. Factors with a positive effect on the implementation of landscape planning measures are pointed out.
KW  - Landscape planning
KW  - nature conservation
KW  - effectiveness
KW  - quantitative research
KW  - Germany
KW  - municipality
Y1  - 2012
U6  - https://doi.org/10.1080/01426397.2011.592575
SN  - 0142-6397
VL  - 37
IS  - 4
SP  - 483
EP  - 500
PB  - Routledge, Taylor & Francis Group
CY  - Abingdon
ER  - 
TY  - JOUR
A1  - Webber, Heidi
A1  - Lischeid, Gunnar
A1  - Sommer, Michael
A1  - Finger, Robert
A1  - Nendel, Claas
A1  - Gaiser, Thomas
A1  - Ewert, Frank
T1  - No perfect storm for crop yield failure in Germany
JF  - Environmental research letters
N2  - Large-scale crop yield failures are increasingly associated with food price spikes and food insecurity and are a large source of income risk for farmers. While the evidence linking extreme weather to yield failures is clear, consensus on the broader set of weather drivers and conditions responsible for recent yield failures is lacking. We investigate this for the case of four major crops in Germany over the past 20 years using a combination of machine learning and process-based modelling. Our results confirm that years associated with widespread yield failures across crops were generally associated with severe drought, such as in 2018 and to a lesser extent 2003. However, for years with more localized yield failures and large differences in spatial patterns of yield failures between crops, no single driver or combination of drivers was identified. Relatively large residuals of unexplained variation likely indicate the importance of non-weather related factors, such as management (pest, weed and nutrient management and possible interactions with weather) explaining yield failures. Models to inform adaptation planning at farm, market or policy levels are here suggested to require consideration of cumulative resource capture and use, as well as effects of extreme events, the latter largely missing in process-based models. However, increasingly novel combinations of weather events under climate change may limit the extent to which data driven methods can replace process-based models in risk assessments.
KW  - crop yield failure
KW  - extreme events
KW  - support vector machine
KW  - process-based crop model
KW  - Germany
Y1  - 2020
U6  - https://doi.org/10.1088/1748-9326/aba2a4
SN  - 1748-9326
VL  - 15
IS  - 10
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  - 
TY  - JOUR
A1  - Volgmann, Uta
T1  - Die politische Debatte über die europäische Verfassung in Polen
JF  - WeltTrends-Papiere
N2  - Inhalt: Theoretische Grundlagen der Verfassungsgesetzgebung ; Verfassungsgesetzgebung und Verfassungsbedeutung ; Europäischer Verfassungsgebungsprozess ; Verfassungsausarbeitung , Verfassungsdiskussion , Akt der Verfassungsgebung , Verfassungsbedeutung, symbolische Funktionen und Identitätsstiftung , Eine Verfassung für die EU-Bürger ; Die europäische Verfassung aus polnischer Sicht  ; Erarbeitung der europäischen Verfassung im Konvent ; Eine europäische Verfassung für die Bürger? ; Ratifikation der europäischen Verfassung ; Identitätsstiftung durch eine europäische Verfassung? ; Vertrag statt Verfassung ; Literatur
KW  - Polen
KW  - Europäische Union
KW  - Deutschland
KW  - Integration
KW  - Vertiefung
KW  - Poland
KW  - European Union
KW  - Germany
KW  - Integration
KW  - Consolidation
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-63113
SN  - 1864-0656
IS  - 15
SP  - 253
EP  - 270
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Vogel, Kristin
A1  - Weise, Laura
A1  - Schröter, Kai
A1  - Thieken, Annegret
T1  - Identifying Driving Factors in Flood-Damaging Processes Using Graphical Models
JF  - Water resources research
N2  - Flood damage estimation is a core task in flood risk assessments and requires reliable flood loss models. Identifying the driving factors of flood loss at residential buildings and gaining insight into their relations is important to improve our understanding of flood damage processes. For that purpose, we learn probabilistic graphical models, which capture and illustrate (in-)dependencies between the considered variables. The models are learned based on postevent surveys with flood-affected residents after six flood events, which occurred in Germany between 2002 and 2013. Besides the sustained building damage, the survey data contain information about flooding parameters, early warning and emergency measures, property-level mitigation measures and preparedness, socioeconomic characteristics of the household, and building characteristics. The analysis considers the entire data set with a total of 4,468 cases as well as subsets of the data set partitioned into single flood events and flood types: river floods, levee breaches, surface water flooding, and groundwater floods, to reveal differences in the damaging processes. The learned networks suggest that the flood loss ratio of residential buildings is directly influenced by hydrological and hydraulic aspects as well as by building characteristics and property-level mitigation measures. The study demonstrates also that for different flood events and process types the building damage is influenced by varying factors. This suggests that flood damage models need to be capable of reproducing these differences for spatial and temporal model transfers.
KW  - flood loss
KW  - Bayesian Network
KW  - Markov Blanket
KW  - vulnerability
KW  - Germany
Y1  - 2018
U6  - https://doi.org/10.1029/2018WR022858
SN  - 0043-1397
SN  - 1944-7973
VL  - 54
IS  - 11
SP  - 8864
EP  - 8889
PB  - American Geophysical Union
CY  - Washington
ER  - 
TY  - JOUR
A1  - Thomeczek, Jan Philipp
T1  - Bündnis Sahra Wagenknecht (BSW): left-wing authoritarian—and populist?
BT  - an empirical analysis
JF  - Politische Vierteljahresschrift
N2  - Germany’s relatively stable party system faces a new left-authoritarian challenger: Sahra Wagenknecht’s Bündnis Sahra Wagenknecht (BSW) party. First polls indicate that for the BSW, election results above 10% are within reach. While Wagenknecht’s positions in economic and cultural terms have already been discussed, this article elaborates on another highly relevant feature of Wagenknecht, namely her populist communication. Exploring Wagenknecht’s and BSW’s populist appeal helps us to understand why the party is said to also have potential among seemingly different voter groups coming from the far right Alternative for Germany (AfD) and far left Die Linke, which share high levels of populist attitudes. To analyse the role that populist communication plays for Wagenknecht and the BSW, this article combines quantitative and qualitative methods. The quantitative analysis covers all speeches (10,000) and press releases (19,000) published by Die Linke members of Parliament (MPs; 2005–2023). The results show that Wagenknecht is the (former) Die Linke MP with the highest share of populist communication. Furthermore, she was also able to convince a group of populist MPs to join the BSW. The article closes with a qualitative analysis of BSW’s manifesto that reveals how populist framing plays a major role in this document, in which the political and economic elites are accused of working against the interest of “the majority”. Based on this analysis, the classification of the BSW as a populist party seems to be appropriate.
N2  - Die langjährige Stabilität des deutschen Parteiensystems wird aktuell durch eine neue links-konservative Partei herausgefordert: Bündnis Sahra Wagenknecht (BSW). Erste Umfragen deuten an, dass das BSW bundesweit bis zu 10 % der Stimmen gewinnen könnte. Die Einordnung als links-konservativ oder in Anlehnung an die englische Literatur links-autoritär wurde bereits medial intensiv diskutiert. Weniger Beachtung hat bislang die populistische Kommunikation von Wagenknecht gefunden. Die populistische Ansprache durch das BSW kann bei der Beantwortung der Frage behilflich sein, warum das BSW scheinbar gegensätzliche Gruppen wie Wähler:innen der Linken und der AfD gleichzeitig ansprechen kann, da populistische Einstellungen unter den Wähler:innen beider Parteien weit verbreitet sind. Der vorliegende Beitrag analysiert die Rolle der populistischen Kommunikation von Wagenknecht und dem BSW mithilfe qualitativer und quantitativer Methoden. Dazu wurden zunächst alle Reden (ca. 10.000) und alle Pressemitteilungen (ca. 19.000) aller Linken-Bundestagsabgeordneten der gesamten parlamentarischen Lebensdauer der Fraktion (2005–2023) untersucht. Die Ergebnisse dieser quantitativen Analyse zeigen, dass Wagenknecht unter den Linken-Abgeordneten mit Abstand am häufigsten populistische Kommunikationselemente einsetzte und sie ebenso in der Lage war, einige der populistischsten Abgeordneten zum BSW-Beitritt zu überreden. Der Artikel schließt mit einer qualitativen Auswertung der populistischen Rhetorik im BSW-Parteiprogramm. Es wird deutlich, dass hier insbesondere die Kritik an der Politik- und Wirtschaftselite eine wichtige Rolle spielt. Diese Elitenkritik wird mit einem starken Bevölkerungsbezug kombiniert, der beispielsweise in der Ansprache der „Mehrheit“ deutlich wird. Insgesamt erscheint damit die Klassifizierung als populistische Partei gerechtfertigt.
KW  - populism
KW  - Germany
KW  - BSW
KW  - mixed methods
KW  - new parties
KW  - Populismus
KW  - Deutschland
KW  - neue Parteien
Y1  - 2024
U6  - https://doi.org/10.1007/s11615-024-00544-z
SN  - 0032-3470
SN  - 1862-2860
PB  - Springer VS
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Stecker, Christian
A1  - Kachel, Jannis
A1  - Paasch, Jana
T1  - Muster der Landesgesetzgebung
BT  - eine Analyse aller Landesgesetze zwischen 1990–2020
BT  - an analysis of all bills between 1990 and 2020
JF  - Politische Vierteljahresschrift : PVS : German political science quarterly / hrsg. vom Vorstand der Deutschen Vereinigung für Politikwissenschaft
N2  - This research note presents the first systematic documentation of the legislative process in the German state parliaments. The data set comprises 16,610 bills between 1990 and 2020. After a description of the data, we provide illustrative insights into the patterns of law-making. It is shown that these patterns are dominated by the new dualism between government and opposition. Furthermore, the incentives of issue competition are clearly present in the legislative initiatives. There is no evidence, however, for the expectation that intracoalitional policy distance prolongs the duration of legislative procedures. The published data provides scholars with the opportunity to investigate various additional research questions.
N2  - Die vorliegende Research Note stellt die erste systematische Dokumentation der Gesetzgebung in den deutschen Landtagen vor. Der Datensatz umfasst insgesamt 16.610 dokumentierte Gesetzgebungsvorgänge zwischen den Jahren 1990 und 2020. Nach einer Beschreibung des Datensatzes werden einige Gesetzgebungsmuster in den deutschen Ländern exemplarisch dargestellt. Die Landesgesetzgebung erweist sich dabei als stark durch den neuen Dualismus zwischen Regierung und Opposition geprägt. Im Initiativverhalten lassen sich zudem die Anreize des thematischen Parteienwettbewerbs ablesen. Wenig Evidenz findet sich für die These, dass innerkoalitionäre Gegensätze die Dauer der Gesetzgebungsverfahren in die Länge ziehen. Der mit dieser Research Note veröffentlichte Datensatz steht der Forschung für die Untersuchung zahlreicher weiterer Fragestellungen zur Verfügung.
T2  - Patterns of law-making in the German States
KW  - Legislative process
KW  - Regional states
KW  - Multilevel system
KW  - Federalism
KW  - Germany
KW  - Gesetzgebung
KW  - Bundesländer
KW  - Landtage
KW  - Föderalismus
KW  - Mehrebenensystem
Y1  - 2021
U6  - https://doi.org/10.1007/s11615-021-00307-0
SN  - 0032-3470
SN  - 1862-2860
VL  - 62
IS  - 2
SP  - 307
EP  - 324
PB  - Springer VS
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Sorgner, Alina
A1  - Fritsch, Michael
A1  - Kritikos, Alexander
T1  - Do entrepreneurs really earn less?
JF  - Small business economics : an international journal
N2  - Based on large representative German household survey data, we compare incomes of the self-employed with those of paid employees. We find that the entrepreneurial income gap is largest for those holding a tertiary degree, but in two directions: positive for employers (self-employed with further employees) and negative for solo entrepreneurs. Entrepreneurs holding a tertiary degree also face the greatest income variation. However, some solo self-employed earn more than their employed counterparts, in particular those with a university entrance degree as the highest level of education.
KW  - Income
KW  - Entrepreneurship
KW  - Self-employment
KW  - Germany
Y1  - 2017
U6  - https://doi.org/10.1007/s11187-017-9874-6
SN  - 0921-898X
SN  - 1573-0913
VL  - 49
SP  - 251
EP  - 272
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Sorge, Arndt
A1  - Streeck, Wolfgang
T1  - Diversified quality production revisited
BT  - its contribution to German socio-economic performance over time
JF  - Socio-economic review
N2  - We revisit the concept of Diversified Quality Production (DQP), which we introduced about 30 years ago. Our purpose is to examine the extent to which the concept can still be considered tenable for describing and explaining the development of the interaction between the political economy and concepts of production, notably in Germany. First, we show why and in which ways DQP was more heterogeneous than we had originally understood. Then, on the basis of evidence with respect to political, business, and economic changes in Germany, we show that DQP Mark I, a regime by and large characteristic of the 1980s, turned into DQP Mark II. In the process, major ‘complementarities’ disappeared between the late 1980s and now—mainly the complementarity between production modes on the one hand and industrial relations and economic regulation on the other. While the latter exhibit greater change, business strategies and production organization show more continuity, which helps explain how Germany maintained economic performance after the mid-2000s, more than other countries in Europe. Conceptually, our most important result is that the complementarities emphasized in political economy are historically relative and limited, so that they should not be postulated as stable configurations.
KW  - production concepts
KW  - manufacturing
KW  - diversified quality production
KW  - industrial organization
KW  - industrial relations
KW  - industrial restructuring
KW  - globalization
KW  - skills
KW  - Germany
Y1  - 2018
U6  - https://doi.org/10.1093/ser/mwy022
SN  - 1475-1461
SN  - 1475-147X
VL  - 16
IS  - 3
SP  - 587
EP  - 612
PB  - Oxford Univ. Press
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Sieg, Tobias
A1  - Schinko, Thomas
A1  - Vogel, Kristin
A1  - Mechler, Reinhard
A1  - Merz, Bruno
A1  - Kreibich, Heidi
T1  - Integrated assessment of short-term direct and indirect economic flood impacts including uncertainty quantification
JF  - PLoS ONE
N2  - Understanding and quantifying total economic impacts of flood events is essential for flood risk management and adaptation planning. Yet, detailed estimations of joint direct and indirect flood-induced economic impacts are rare. In this study an innovative modeling procedure for the joint assessment of short-term direct and indirect economic flood impacts is introduced. The procedure is applied to 19 economic sectors in eight federal states of Germany after the flood events in 2013. The assessment of the direct economic impacts is object-based and considers uncertainties associated with the hazard, the exposed objects and their vulnerability. The direct economic impacts are then coupled to a supply-side Input-Output-Model to estimate the indirect economic impacts. The procedure provides distributions of direct and indirect economic impacts which capture the associated uncertainties. The distributions of the direct economic impacts in the federal states are plausible when compared to reported values. The ratio between indirect and direct economic impacts shows that the sectors Manufacturing, Financial and Insurance activities suffered the most from indirect economic impacts. These ratios also indicate that indirect economic impacts can be almost as high as direct economic impacts. They differ strongly between the economic sectors indicating that the application of a single factor as a proxy for the indirect impacts of all economic sectors is not appropriate.
KW  - June 2013
KW  - Damage
KW  - Model
KW  - Inoperability
KW  - Disasters
KW  - Hazards
KW  - Germany
KW  - Losses
KW  - Event
KW  - Costs
Y1  - 2019
U6  - https://doi.org/10.1371/journal.pone.0212932
SN  - 1932-6203
VL  - 14
IS  - 4
PB  - Public Library of Science
CY  - San Francisco
ER  - 
TY  - JOUR
A1  - Semke, Lisa-Marie
A1  - Tiberius, Victor
T1  - Corporate Foresight and Dynamic Capabilities
BT  - An Exploratory Study
JF  - Forecasting
N2  - Firms engage in forecasting and foresight activities to predict the future or explore possible future states of the business environment in order to pre-empt and shape it (corporate foresight). Similarly, the dynamic capabilities approach addresses relevant firm capabilities to adapt to fast change in an environment that threatens a firm’s competitiveness and survival. However, despite these conceptual similarities, their relationship remains opaque. To close this gap, we conduct qualitative interviews with foresight experts as an exploratory study. Our results show that foresight and dynamic capabilities aim at an organizational renewal to meet future challenges. Foresight can be regarded as a specific activity that corresponds with the sensing process of dynamic capabilities. The experts disagree about the relationship between foresight and sensing and see no direct links with transformation. However, foresight can better inform post-sensing activities and, therefore, indirectly contribute to the adequate reconfiguration of the resource base, an increased innovativeness, and firm performance.
KW  - corporate foresight
KW  - dynamic capabilities
KW  - forecasting
KW  - Germany
Y1  - 2020
U6  - https://doi.org/10.3390/forecast2020010
SN  - 2571-9394
VL  - 2
IS  - 2
SP  - 180
EP  - 293
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Schütte, Robert
A1  - Islam, Rana Deep
T1  - Mehr Debatte wagen!
BT  - Deutsche Sicherheitspolitik und Öffentlichkeit
JF  - WeltTrends-Papiere
N2  - Inhalt: Zivilgesellschaftliche Teilhabe fördern ; Öffentlichkeit von unten
KW  - Außenpolitik
KW  - Interessen
KW  - Deutschland
KW  - foreign Policy
KW  - national interests
KW  - Germany
Y1  - 2011
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-62813
SN  - 1864-0656
IS  - 20
SP  - 46
EP  - 50
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Schwieder, Marcel
A1  - Wesemeyer, Maximilian
A1  - Frantz, David
A1  - Pfoch, Kira
A1  - Erasmi, Stefan
A1  - Pickert, Jürgen
A1  - Nendel, Claas
A1  - Hostert, Patrick
T1  - Mapping grassland mowing events across Germany based on combined Sentinel-2 and Landsat 8 time series
JF  - Remote sensing of environment
N2  - Spatially explicit knowledge on grassland extent and management is critical to understand and monitor the impact of grassland use intensity on ecosystem services and biodiversity. While regional studies allow detailed insights into land use and ecosystem service interactions, information on a national scale can aid biodiversity assessments. However, for most European countries this information is not yet widely available. We used an analysis-ready-data cube that contains dense time series of co-registered Sentinel-2 and Landsat 8 data, covering the extent of Germany. We propose an algorithm that detects mowing events in the time series based on residuals from an assumed undisturbed phenology, as an indicator of grassland use intensity. A self-adaptive ruleset enabled to account for regional variations in land surface phenology and non-stationary time series on a pixelbasis. We mapped mowing events for the years from 2017 to 2020 for permanent grassland areas in Germany. The results were validated on a pixel level in four of the main natural regions in Germany based on reported mowing events for a total of 92 (2018) and 78 (2019) grassland parcels. Results for 2020 were evaluated with combined time series of Landsat, Sentinel-2 and PlanetScope data. The mean absolute percentage error between detected and reported mowing events was on average 40% (2018), 36% (2019) and 35% (2020). Mowing events were on average detected 11 days (2018), 7 days (2019) and 6 days (2020) after the reported mowing. Performance measures varied between the different regions of Germany, and lower accuracies were found in areas that are revisited less frequently by Sentinel-2. Thus, we assessed the influence of data availability and found that the detection of mowing events was less influenced by data availability when at least 16 cloud-free observations were available in the grassland season. Still, the distribution of available observations throughout the season appeared to be critical. On a national scale our results revealed overall higher shares of less intensively mown grasslands and smaller shares of highly intensively managed grasslands. Hotspots of the latter were identified in the alpine foreland in Southern Germany as well as in the lowlands in the Northwest of Germany. While these patterns were stable throughout the years, the results revealed a tendency to lower management intensity in the extremely dry year 2018. Our results emphasize the ability of the approach to map the intensity of grassland management throughout large areas despite variations in data availability and environmental conditions.
KW  - Analysis-ready data
KW  - Big data
KW  - Large-area mapping
KW  - Germany
KW  - Common agricultural policy
KW  - Time series
KW  - Land use intensity
KW  - Optical remote sensing
KW  - Multi-spectral data
KW  - PlanetScope
Y1  - 2022
U6  - https://doi.org/10.1016/j.rse.2021.112795
SN  - 0034-4257
SN  - 1879-0704
VL  - 269
PB  - Elsevier
CY  - New York
ER  - 
TY  - JOUR
A1  - Schuster, Ulrich
T1  - Wiederkehr des Immergleichen
JF  - WeltTrends-Papiere
N2  - Inhalt: Fremdbestimmung oder nationale Eigeninteressen? Schein und Sein der Kritik am außenpolitischen Konsens
KW  - Außenpolitik
KW  - Interessen
KW  - Deutschland
KW  - foreign Policy
KW  - national interests
KW  - Germany
Y1  - 2011
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-62829
SN  - 1864-0656
IS  - 20
SP  - 51
EP  - 55
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Samprogna Mohor, Guilherme
A1  - Thieken, Annegret
A1  - Korup, Oliver
T1  - Residential flood loss estimated from Bayesian multilevel models
JF  - Natural Hazards and Earth System Sciences
N2  - Models for the predictions of monetary losses from floods mainly blend data deemed to represent a single flood type and region. Moreover, these approaches largely ignore indicators of preparedness and how predictors may vary between regions and events, challenging the transferability of flood loss models. We use a flood loss database of 1812 German flood-affected households to explore how Bayesian multilevel models can estimate normalised flood damage stratified by event, region, or flood process type. Multilevel models acknowledge natural groups in the data and allow each group to learn from others. We obtain posterior estimates that differ between flood types, with credibly varying influences of water depth, contamination, duration, implementation of property-level precautionary measures, insurance, and previous flood experience; these influences overlap across most events or regions, however. We infer that the underlying damaging processes of distinct flood types deserve further attention. Each reported flood loss and affected region involved mixed flood types, likely explaining the uncertainty in the coefficients. Our results emphasise the need to consider flood types as an important step towards applying flood loss models elsewhere. We argue that failing to do so may unduly generalise the model and systematically bias loss estimations from empirical data.
KW  - damage
KW  - insurance
KW  - Germany
KW  - transferability
KW  - preparedness
KW  - recovery
Y1  - 2020
U6  - https://doi.org/10.5194/nhess-21-1599-2021
SN  - 2195-9269
VL  - 21
SP  - 1599
EP  - 1614
PB  - European Geophysical Society
CY  - Katlenburg-Lindau
ER  - 
TY  - JOUR
A1  - Sakson, Andrzej
T1  - Probleme der Arbeitsmigration in Europa
JF  - WeltTrends-Papiere
N2  - Inhalt: Migranten aus den neuen EU-Staaten ; Folgen für die „alten“ EU-Staaten ; Migration und Arbeitslosigkeit ; Ausmaß der Migration ; Sozioökonomische Struktur der polnischen Migranten ; Kosten und Nutzen von Migration ; Literatur
KW  - Polen
KW  - Europäische Union
KW  - Deutschland
KW  - Integration
KW  - Vertiefung
KW  - Poland
KW  - European Union
KW  - Germany
KW  - Integration
KW  - Consolidation
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-63065
SN  - 1864-0656
IS  - 15
SP  - 163
EP  - 173
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -