Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming

A sufficient freshwater supply is vital for humans, ecosystems, and economies, but anticipated climate and socio-economic change are expected to substantially alter water availability. Across Europe, about two-third of the abstracted freshwater comes from rivers and streams. Various hydrological stu...

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Main Authors: Peter Greve, Peter Burek, Luca Guillaumot, Erik van Meijgaard, Emma Aalbers, Mikhail M Smilovic, Frederiek Sperna-Weiland, Taher Kahil, Yoshihide Wada
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/acec60
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author Peter Greve
Peter Burek
Luca Guillaumot
Erik van Meijgaard
Emma Aalbers
Mikhail M Smilovic
Frederiek Sperna-Weiland
Taher Kahil
Yoshihide Wada
author_facet Peter Greve
Peter Burek
Luca Guillaumot
Erik van Meijgaard
Emma Aalbers
Mikhail M Smilovic
Frederiek Sperna-Weiland
Taher Kahil
Yoshihide Wada
author_sort Peter Greve
collection DOAJ
description A sufficient freshwater supply is vital for humans, ecosystems, and economies, but anticipated climate and socio-economic change are expected to substantially alter water availability. Across Europe, about two-third of the abstracted freshwater comes from rivers and streams. Various hydrological studies address the resulting need for projections on changes in river discharge. However, those assessments rarely specifically account for the impact of various water withdrawal scenarios during low flow periods. We present here a novel, high-resolution hydrological modeling experiment using pseudo-global warming climate data to investigate the effects of changing water withdrawals under 2 K global warming. Especially in Western and Central Europe the projected impacts on low flows highly depend on the chosen water withdrawal assumption and can severely decrease under the worst case assumptions. Our results highlight the importance of accounting for future water withdrawals in low flow projections, showing that climate-focused impact assessments in near-natural catchments provide only one piece of the anticipated response and do not necessarily reflect changes in heavily managed river basins.
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spelling doaj.art-0f5fc040d39640dfb8e451789c59f08e2023-08-17T10:53:26ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-0118909402010.1088/1748-9326/acec60Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warmingPeter Greve0https://orcid.org/0000-0002-9454-0125Peter Burek1Luca Guillaumot2Erik van Meijgaard3Emma Aalbers4Mikhail M Smilovic5https://orcid.org/0000-0001-9651-8821Frederiek Sperna-Weiland6Taher Kahil7https://orcid.org/0000-0002-7812-5271Yoshihide Wada8https://orcid.org/0000-0003-4770-2539Water Security Research Group, International Institute for Applied Systems Analysis , Laxenburg, Austria; Climate Service Center Germany (GERICS), Helmholtz-Zentrum Hereon , Hamburg, GermanyWater Security Research Group, International Institute for Applied Systems Analysis , Laxenburg, AustriaWater Security Research Group, International Institute for Applied Systems Analysis , Laxenburg, AustriaRoyal Netherlands Meteorological Institute (KNMI) , De Bilt, The NetherlandsRoyal Netherlands Meteorological Institute (KNMI) , De Bilt, The NetherlandsWater Security Research Group, International Institute for Applied Systems Analysis , Laxenburg, AustriaDeltares , Delft, The NetherlandsWater Security Research Group, International Institute for Applied Systems Analysis , Laxenburg, AustriaClimate and Livability Initiative, Center for Desert Agriculture, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology , Thuwal, Saudi ArabiaA sufficient freshwater supply is vital for humans, ecosystems, and economies, but anticipated climate and socio-economic change are expected to substantially alter water availability. Across Europe, about two-third of the abstracted freshwater comes from rivers and streams. Various hydrological studies address the resulting need for projections on changes in river discharge. However, those assessments rarely specifically account for the impact of various water withdrawal scenarios during low flow periods. We present here a novel, high-resolution hydrological modeling experiment using pseudo-global warming climate data to investigate the effects of changing water withdrawals under 2 K global warming. Especially in Western and Central Europe the projected impacts on low flows highly depend on the chosen water withdrawal assumption and can severely decrease under the worst case assumptions. Our results highlight the importance of accounting for future water withdrawals in low flow projections, showing that climate-focused impact assessments in near-natural catchments provide only one piece of the anticipated response and do not necessarily reflect changes in heavily managed river basins.https://doi.org/10.1088/1748-9326/acec60low flowshydrologywater usewater demandclimate changepseudo global warming
spellingShingle Peter Greve
Peter Burek
Luca Guillaumot
Erik van Meijgaard
Emma Aalbers
Mikhail M Smilovic
Frederiek Sperna-Weiland
Taher Kahil
Yoshihide Wada
Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
Environmental Research Letters
low flows
hydrology
water use
water demand
climate change
pseudo global warming
title Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
title_full Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
title_fullStr Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
title_full_unstemmed Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
title_short Low flow sensitivity to water withdrawals in Central and Southwestern Europe under 2 K global warming
title_sort low flow sensitivity to water withdrawals in central and southwestern europe under 2 k global warming
topic low flows
hydrology
water use
water demand
climate change
pseudo global warming
url https://doi.org/10.1088/1748-9326/acec60
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