Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony
Highly-resolved data on water balance components (such as runoff or storage) are crucial to improve water management, for example, in drought or flood situations. As regional observations of these components cannot be acquired adequately, a feasible solution is to apply water balance models. We deve...
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doaj-f343d48fb74544e2abc88770cfdad4162020-11-25T04:08:35ZengMDPI AGHydrology2306-53382020-11-017848410.3390/hydrology7040084Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of SaxonyThanh Thi Luong0Judith Pöschmann1Ivan Vorobevskii2Stefan Wiemann3Rico Kronenberg4Christian Bernhofer5Institute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, GermanyInstitute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, GermanyInstitute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, GermanySaxon State Spatial Data and Land Survey Corporation, 01099 Dresden, GermanyInstitute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, GermanyInstitute of Hydrology and Meteorology, Chair of Meteorology, Technische Universität Dresden, 01062 Dresden, GermanyHighly-resolved data on water balance components (such as runoff or storage) are crucial to improve water management, for example, in drought or flood situations. As regional observations of these components cannot be acquired adequately, a feasible solution is to apply water balance models. We developed an innovative approach using the physically-based lumped-parameter water balance model BROOK90 (R version) integrated into a sensor network platform to derive daily water budget components for catchments in the Free State of Saxony. The model is not calibrated, but rather uses available information on soil, land use, and precipitation only. We applied the hydro response units (HRUs) approach for 6175 small and medium-sized catchments. For the evaluation, model output was cross-evaluated in ten selected head catchments in a low mountain range in Saxony. The mean values of Kling–Gupta efficiency (KGE) for the period 2005–2019 to these catchments are 0.63 and 0.75, for daily and monthly discharge simulations, respectively. The simulated evapotranspiration and soil wetness are in good agreement with the SMAP_L4_GPH product in April 2015–2018. The study can be enhanced by using different data platforms as well as available information on study sites.https://www.mdpi.com/2306-5338/7/4/84water balance componentssoil moisture simulationhydro response unitBROOK90SMAP soil moisture data |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Thanh Thi Luong Judith Pöschmann Ivan Vorobevskii Stefan Wiemann Rico Kronenberg Christian Bernhofer |
spellingShingle |
Thanh Thi Luong Judith Pöschmann Ivan Vorobevskii Stefan Wiemann Rico Kronenberg Christian Bernhofer Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony Hydrology water balance components soil moisture simulation hydro response unit BROOK90 SMAP soil moisture data |
author_facet |
Thanh Thi Luong Judith Pöschmann Ivan Vorobevskii Stefan Wiemann Rico Kronenberg Christian Bernhofer |
author_sort |
Thanh Thi Luong |
title |
Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony |
title_short |
Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony |
title_full |
Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony |
title_fullStr |
Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony |
title_full_unstemmed |
Pseudo-Spatially-Distributed Modeling of Water Balance Components in the Free State of Saxony |
title_sort |
pseudo-spatially-distributed modeling of water balance components in the free state of saxony |
publisher |
MDPI AG |
series |
Hydrology |
issn |
2306-5338 |
publishDate |
2020-11-01 |
description |
Highly-resolved data on water balance components (such as runoff or storage) are crucial to improve water management, for example, in drought or flood situations. As regional observations of these components cannot be acquired adequately, a feasible solution is to apply water balance models. We developed an innovative approach using the physically-based lumped-parameter water balance model BROOK90 (R version) integrated into a sensor network platform to derive daily water budget components for catchments in the Free State of Saxony. The model is not calibrated, but rather uses available information on soil, land use, and precipitation only. We applied the hydro response units (HRUs) approach for 6175 small and medium-sized catchments. For the evaluation, model output was cross-evaluated in ten selected head catchments in a low mountain range in Saxony. The mean values of Kling–Gupta efficiency (KGE) for the period 2005–2019 to these catchments are 0.63 and 0.75, for daily and monthly discharge simulations, respectively. The simulated evapotranspiration and soil wetness are in good agreement with the SMAP_L4_GPH product in April 2015–2018. The study can be enhanced by using different data platforms as well as available information on study sites. |
topic |
water balance components soil moisture simulation hydro response unit BROOK90 SMAP soil moisture data |
url |
https://www.mdpi.com/2306-5338/7/4/84 |
work_keys_str_mv |
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