WorldCat Identities

Bronstert, A. (Axel)

Overview
Works: 150 works in 244 publications in 2 languages and 1,726 library holdings
Genres: Conference papers and proceedings  Academic theses 
Roles: Editor, Author, dgs, Other, Contributor, htt
Publication Timeline
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Most widely held works by A Bronstert
Coupled models for the hydrological cycle : integrating atmosphere, biosphere and pedosphere by A Bronstert( )

25 editions published between 2004 and 2010 in English and held by 801 WorldCat member libraries worldwide

"Hydrologists, climatologists, soil scientists and environmental engineers are frequently asked to analyse complex environmental problems. It is becoming increasingly apparent that these problems usually involve feedbacks between atmospheric, ecological and hydrological systems as well as human society. It is often the feedbacks between systems that are of greatest interest because they may produce unanticipated responses. That is why the coupling of different compartments of the Earth system has emerged as a general challenge to the modelling community. This book considers an array of coupling and modelling concepts. First, the relevant Earth system cycles are presented, followed by a discussion on scale issues and multiple equilibria. Inter- and intra-compartmental coupling is addressed, along with a debate on non-linearities and questions of parameterisation. Several applications are presented, the focus being on cases where the hydrological cycle plays a central role."--BOOK JACKET
Proceedings of the European Expert Meeting on the Oder Flood 1997 : 18 May 1998, Potsdam, Germany : Ribamod concerted action by A Bronstert( Book )

17 editions published in 1999 in English and held by 137 WorldCat member libraries worldwide

Hydrologie by Nicola Fohrer( )

2 editions published in 2016 in German and held by 121 WorldCat member libraries worldwide

"Dieses Lehrbuch wendet sich an Studienanfänger der Natur- und Ingenieurwissenschaften. Es gibt eine grundlegende Einführung in die Elemente des Wasserkreislaufs. Erläutert werden der Einfluss von Landnutzung und Klima, Hochwasser und Dürre sowie moderne Verfahren zur Quantifizierung hydrologischer Prozesse. Schließlich wird ein Einblick in die hydrologische Praxis und die Risikovorsorge gegeben."
Simulation von Wassermangelsituationen im Nordostdeutschen Tiefland mittels gekoppelter Oberflächen- und Grundwassermodelle by Silke Mey( )

1 edition published in 2011 in German and held by 33 WorldCat member libraries worldwide

Modellierung der Abflussbildung und der Bodenwasserdynamik von Hängen by A Bronstert( Book )

5 editions published in 1994 in German and held by 29 WorldCat member libraries worldwide

Coupled models for the hydrological cycle : integrating atmosphere, biosphere and pedosphere ; with 20 tables( Book )

3 editions published in 2005 in English and held by 27 WorldCat member libraries worldwide

Modeling groundwater is a tool familiar to all working in this field. Coupling different compartments has emerged as a challenge to the modeling community. This book contributes to these discussions and gives a state-of-the-art summary of the different ways of coupling. Firstthe cycles which have to be taken into account are beeing presented, then the scale issue and multiple equilibria are discussed. Inter- and intra-compartmental coupling is dealt with, followed by a debate on non-linearities and questions of parameterization. All these issues are dealt with on a theoretical level before applied to the hydrological cycle itself. Case studies exemplify how coupling can help to solve special questions from the local to the global cycle. TOC:1.Cycles, Feedbacks and Main Issues. - Global cycles: Overview and Introduction.- The Nature of Land-Biosphere-Atmospheric Feedbacks in the Hydrological Cycle.- Scale issues.- Multiple Equilibria. - 2.Systems Approach: The Nature of Coupled Models. - Introduction.- Fluxes, Compartments and Ordering of Feedbacks.- Non-linearities.- Parameterization of Complex Hydrological Systems. - 3.Systematization of the Interactions between Hydrological and Related Cycles. - Introduction.- Coupled Processes and Interaction Matrix.- Coupling Aspects of Heat and Mass Transfer.- Feedbacks at the Hydro-metreorological Interface. - 4.Case Studies.- Framework of the Case Studies. - 5.Summary and Outlook. - 6. Glossary
Abflussbildung Prozessbeschreibung und Fallbeispiele( Book )

1 edition published in 2005 in German and held by 22 WorldCat member libraries worldwide

Hydrological and erosion responses to man-made and natural disturbances : insights from forested catchments in South-central Chile by Christian Heinrich Mohr( )

2 editions published between 2013 and 2014 in English and held by 21 WorldCat member libraries worldwide

Logging and large earthquakes are disturbances that may significantly affect hydrological and erosional processes and process rates, although in decisively different ways. Despite numerous studies that have documented the impacts of both deforestation and earthquakes on water and sediment fluxes, a number of details regarding the timing and type of de- and reforestation; seismic impacts on subsurface water fluxes; or the overall geomorphic work involved have remained unresolved. The main objective of this thesis is to address these shortcomings and to better understand and compare the hydrological and erosional process responses to such natural and man-made disturbances. To this end, south-central Chile provides an excellent natural laboratory owing to its high seismicity and the ongoing conversion of land into highly productive plantation forests. In this dissertation I combine paired catchment experiments, data analysis techniques, and physics-based modelling to investigate: 1) the effect of plantation forests on water resources, 2)
Modelling of environmental change impacts on water resources and hydrological extremes in Germany by Shaochun Huang( )

2 editions published in 2012 in English and held by 18 WorldCat member libraries worldwide

Water resources, in terms of quantity and quality, are significantly influenced by environmental changes, especially by climate and land use changes. The main objective of the present study is to project climate change impacts on the seasonal dynamics of water fluxes, spatial changes in water balance components as well as the future flood and low flow conditions in Germany. This study is based on the modeling results of the process-based eco-hydrological model SWIM (Soil and Water Integrated Model) driven by various regional climate scenarios on one hand. On the other hand, it is supported by statistical analysis on long-term trends of observed and simulated time series. In addition, this study evaluates the impacts of potential land use changes on water quality in terms of NO3-N load in selected sub-regions of the Elbe basin. In the context of climate change, the actual evapotransipration is likely to increase in most parts of Germany, while total runoff generation may decrease in south and east regions in the scenario period 2051-2060. Water discharge in all six studied large rivers (Ems, Weser, Saale, Danube, Main and Neckar) would be 8 - 30% lower in summer and autumn compared to the reference period (1961 - 1990), and the strongest decline is expected for the Saale, Danube and Neckar. The 50-year low flow is likely to occur more frequently in western, southern and central Germany after 2061 as suggested by more than 80% of the model runs. The current low flow period (from August to September) may be extended until the late autumn at the end of this century. Higher winter flow is expected in all of these rivers, and the increase is most significant for the Ems (about 18%). No general pattern of changes in flood directions can be concluded according to the results driven by different RCMs, emission scenarios and multi-realizations. An optimal agricultural land use and management are essential for the reduction in nutrient loads and improvement of water quality. In the Weiße Elster and Unstrut sub-basins (Elbe), an increase of 10% in the winter rape area can result in 12-19% more NO3-N load in rivers. In contrast, another energy plant, maize, has a moderate effect on the water environment. Mineral fertilizers have a much stronger effect on the NO3-N load than organic fertilizers. Cover crops, which play an important role in the reduction of nitrate losses from fields, should be maintained on cropland. The uncertainty in estimating future high flows and, in particular, extreme floods remain high due to different RCM structures, emission scenarios and multi-realizations. In contrast, the projection of low flows under warmer climate conditions appears to be more pronounced and consistent. The largest source of uncertainty related to NO3-N modelling originates from the input data on the agricultural management
Soil parameter retrieval under vegetation cover using SAR polarimetry by Thomas Jagdhuber( )

1 edition published in 2012 in English and held by 18 WorldCat member libraries worldwide

Soil conditions under vegetation cover and their spatial and temporal variations from point to catchment scale are crucial for understanding hydrological processes within the vadose zone, for managing irrigation and consequently maximizing yield by precision farming. Soil moisture and soil roughness are the key parameters that characterize the soil status. In order to monitor their spatial and temporal variability on large scales, remote sensing techniques are required. Therefore the determination of soil parameters under vegetation cover was approached in this thesis by means of (multi-angular) polarimetric SAR acquisitions at a longer wavelength (L-band, lambda=23cm). In this thesis, the penetration capabilities of L-band are combined with newly developed (multi-angular) polarimetric decomposition techniques to separate the different scattering contributions, which are occurring in vegetation and on ground. Subsequently the ground components are inverted to estimate the soil characteristics. The novel (multi-angular) polarimetric decomposition techniques for soil parameter retrieval are physically-based, computationally inexpensive and can be solved analytically without any a priori knowledge. Therefore they can be applied without test site calibration directly to agricultural areas. The developed algorithms are validated with fully polarimetric SAR data acquired by the airborne E-SAR sensor of the German Aerospace Center (DLR) for three different study areas in Germany. The achieved results reveal inversion rates up to 99% for the soil moisture and soil roughness retrieval in agricultural areas. However, in forested areas the inversion rate drops significantly for most of the algorithms, because the inversion in forests is invalid for the applied scattering models at L-band. The validation against simultaneously acquired field measurements indicates an estimation accuracy (root mean square error) of 5-10vol.% for the soil moisture (range of in situ values: 1-46vol.%) and of 0.37-0.45cm for the soil roughness (range of in situ values: 0.5-4.0cm) within the catchment. Hence, a continuous monitoring of soil parameters with the obtained precision, excluding frozen and snow covered conditions, is possible. Especially future, fully polarimetric, space-borne, long wavelength SAR missions can profit distinctively from the developed polarimetric decomposition techniques for separation of ground and volume contributions as well as for soil parameter retrieval on large spatial scales
Challenges of regional hydrological modelling in the Elbe River basin investigations about model fidelity on sub-catchment level by Tobias Conradt( )

2 editions published in 2013 in English and held by 18 WorldCat member libraries worldwide

Within a research project about future sustainable water management options in the Elbe River basin, quasi-natural discharge scenarios had to be provided. The semi-distributed eco-hydrological model SWIM was utilised for this task. According to scenario simulations driven by the stochastical climate model STAR, the region would get distinctly drier. However, this thesis focuses on the challenge of meeting the requirement of high model fidelity even for smaller sub-basins. Usually, the quality of the simulations is lower at inner points than at the outlet. Four research paper chapters and the discussion chapter deal with the reasons for local model deviations and the problem of optimal spatial calibration. Besides other assessments, the Markov Chain Monte Carlo method is applied to show whether evapotranspiration or precipitation should be corrected to minimise runoff deviations, principal component analysis is used in an unusual way to evaluate local precipitation alterations by land cover changes, and remotely sensed surface temperatures allow for an independent view on the evapotranspiration landscape. The overall insight is that spatially explicit hydrological modelling of such a large river basin requires a lot of local knowledge. It probably needs more time to obtain such knowledge as is usually provided for hydrological modelling studies
Entwicklung von regionalen Klimasimulationen für CORDEX-Ostasien auf Basis eines physikalisch dynamischen und eines statistischen Regionalmodells by Christoph Menz( )

1 edition published in 2016 in German and held by 17 WorldCat member libraries worldwide

Die vorliegende Arbeit beschäftigt sich mit der Entwicklung von regionalen Klimasimulationen für die Region Ostasien. Hierfür werden zwei verschiedene Modellierungsansätze verwendet. Der dynamische Regionalmodellierungsansatz, vertreten durch COSMO CLM (CCLM), und der statistische Modellierungsansatz, vertreten durch STARS. Die Simulationen erfolgten unter den Rahmenbedingungen des Coordinated Regional Climate Downscaling Experiment (CORDEX). Beide Regionalmodelle wurden im Rahmen dieser Arbeit umfassend für die Region CORDEX-Ostasien kalibriert und evaluiert. Das statistische Modell STARS wurde hierbei erstmals auf kontinentaler Ebene angewendet. Auf Basis der kalibrierten Modelle wurden Projektionen der zukünftigen klimatischen Entwicklung der Region durchgeführt. Zur Auswertung der einzelnen Kalibrierungsläufe wurde ein komplexes Evaluierungsschema, mit einem Gütekennzahlensystem basierend auf einer linearisierten Form der relativen Modelldifferenz, entwickelt.
LAHoR : Quantifizierung des Einflusses der Landoberfläche und der Ausbaumaßnahmen am Gewässer auf die Hochwasserbedingungen im Rheingebiet by LAHoR (Project)( Book )

4 editions published in 2003 in German and held by 17 WorldCat member libraries worldwide

Analyzing and modelling of flow transmission processes in river-systems with a focus on semi-arid conditions by Alexandre Cunha Costa( )

2 editions published in 2012 in English and held by 17 WorldCat member libraries worldwide

Proceedings / European Conference on Advances in Flood Research( )

1 edition published in 2000 in English and held by 14 WorldCat member libraries worldwide

Wasser- und Stofftransport in heterogenen Einzugsgebieten : Beiträge zum Tag der Hydrologie 2004, 22./23. März 2004 in Potsdam( Book )

3 editions published in 2004 in German and Undetermined and held by 13 WorldCat member libraries worldwide

The Odra, Oder flood in Summer 1997 proceedings of the European expert meeting in Potsdam, 18 May 1998( Book )

3 editions published between 1997 and 1998 in German and English and held by 13 WorldCat member libraries worldwide

Integrated systems analysis at PIK a brief epistemology by A Bronstert( Book )

3 editions published in 1997 in English and held by 13 WorldCat member libraries worldwide

 
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Coupled models for the hydrological cycle : integrating atmosphere, biosphere and pedosphere Coupled models for the hydrological cycle : integrating atmosphere, biosphere and pedosphere ; with 20 tables
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Coupled models for the hydrological cycle : integrating atmosphere, biosphere and pedosphere ; with 20 tables
Alternative Names
Axel Bronstert deutscher Hydrologe und Hochschullehrer

Axel Bronstert Duits hoogleraar

Axel Bronstert German university teacher

Axel Bronstert profesor universitario alemán

Axel Bronstert profesor universitariu alemán

Axel Bronstert professeur d'université allemand

Axel Bronstert professor académico alemão

Axel Bronstert professor d'universitat alemany

Axel Bronstert professore universitario tedesco

Axel Bronstert tysk professor

Bronstert A.

Bronstert, A. 1959-

Bronstert, Axel

Languages
English (59)

German (22)