Zobrazeno 1 - 10 of 78 pro vyhledávání: '"Gunnar Nützmann"'
2
Flow and Transport Modeling in Heterogeneous Sediments Using an Integral Approach
Autor: Vahid Sobhi Gollo, Tabea Broecker, Jörg Lewandowski, Gunnar Nützmann, Reinhard Hinkelmann
Publikováno v: Groundwater.
An integral approach which can simultaneously model turbulent flow and transport at the sediment-water interface has been recently developed and validated for homogeneous sediment which was achieved by comparing numerical results to flume experiments
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a0ba9cd6171cfa16f67c29f813c1af8
https://doi.org/10.1111/gwat.13275
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3
A comparative study of integral and coupled approaches for modeling hydraulic exchange processes across a rippled streambed
Autor: Vahid Sobhi Gollo, Tabea Broecker, Christian Marx, Jörg Lewandowski, Gunnar Nützmann, Reinhard Hinkelmann
Although both are crucial parts of the hydrological cycle, groundwater and surface water had traditionally been addressed separately. In recent decades, considering them as a single hydrological continuum in light of their continuous interaction has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a78acba0c4f2acb7c29f5ae7f5031d4
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4
An integral approach to simulate three-dimensional flow in and around a ventilated U-shaped chironomid dwelled burrow
Autor: Reinhard Hinkelmann, Jörg Lewandowski, Vahid Sobhi Gollo, Tabea Broecker, Gunnar Nützmann
Publikováno v: Journal of Ecohydraulics. :1-11
Tube dwelling of chironomids often dominates benthic communities in freshwater ecosystems with high population density and pumping rates. This strongly enhances exchange across the sediment-water i...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0ef7e9b4003a55dce12301c750c3e1a
https://doi.org/10.1080/24705357.2021.1938258
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5
High-Resolution Integrated Transport Model for Studying Surface Water-Groundwater Interaction
Autor: Reinhard Hinkelmann, Tabea Broecker, Vahid Sobhi Gollo, Jörg Lewandowski, Aryeh Fox, Shai Arnon, Gunnar Nützmann
Publikováno v: Ground waterReferences. 59(4)
Transport processes that lead to exchange of mass between surface water and groundwater play a significant role for the ecological functioning of aquatic systems, for hydrological processes and for biogeochemical transformations. In this study, we pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afbc2ffc420443d6b9d5988633245ea1
https://pubmed.ncbi.nlm.nih.gov/33368208
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6
How does daily groundwater table drawdown affect the diel rhythm of hyporheic exchange?
Autor: Tanu Singh, Stefan Krause, Gunnar Nützmann, Anders Wörman, Liwen Wu, Jesus D. Gomez-Velez, Jörg Lewandowski
Groundwater table dynamics extensively modify the volume of the hyporheic zone and the rate of hyporheic exchange processes. Understanding the effects of daily groundwater table fluctuations on the tightly coupled flow and heat transport within hypor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31a81d9804f85673cba98d8ec8dba7c3
https://doi.org/10.5194/hess-2020-288
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7
How does the groundwater influence the water balance of a lowland lake? A field study from Lake Stechlin, north-eastern Germany
Autor: Jörg Lewandowski, Franziska Pöschke, Peter Engesgaard, Gunnar Nützmann
Publikováno v: Limnologica. 68:17-25
The subsurface catchment of Lake Stechlin is quite complex. Water level measurements in groundwater wells with different screen depths show that groundwater in the lake’s catchment may partly discharge to the lake and partly leak to deeper aquifers
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::069ecf6f5be014a103b58894e14c6d7b
https://doi.org/10.1016/j.limno.2017.11.005
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8
Aquatic interfaces and linkages: An emerging topic of interdisciplinary research
Autor: Gunnar Nützmann, Peter Engesgaard, Henning S. Jensen, Stefan Krause, Michael Hupfer
Publikováno v: Hupfer, M, Engesgaard, P, Jensen, H S, Krause, S & Nützmann, G 2018, ' Aquatic interfaces and linkages : An emerging topic of interdisciplinary research ', Limnologica, vol. 68, pp. 1-4 . https://doi.org/10.1016/j.limno.2017.12.002
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bee1d8ea77e096dc96df2541d39a9cd
https://doi.org/10.1016/j.limno.2017.12.002
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10
Using computational fluid dynamics to describe H
Autor: Katharina, Teuber, Tabea, Broecker, Thomas Ruby, Bentzen, Dietmar, Stephan, Gunnar, Nützmann, Reinhard, Hinkelmann
Publikováno v: Water science and technology : a journal of the International Association on Water Pollution Research. 79(10)
For the past 70 years, researchers have dealt with the investigation of odour in sewer systems caused by hydrogen sulphide formations and the development of approaches to describe it. The state-of-the-art models are one-dimensional. At the same time,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::f4312298aeec27d9a6e1c24616c82523
https://pubmed.ncbi.nlm.nih.gov/31294710
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