Journal Article

FZJ-2018-03036

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Human Water Use Impacts on the Strength of the Continental Sink for Atmospheric Water

Keune, J. (Corresponding author) ; Sulis, M. ; Kollet, S.FZJ* ; Siebert, S. ; Wada, Y.

2018
Wiley Hoboken, NJ

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Please use a persistent id in citations: http://hdl.handle.net/2128/18589  doi:10.1029/2018GL077621

Abstract: In the hydrologic cycle, continental landmasses constitute a sink for atmospheric moisture as annual terrestrial precipitation commonly exceeds evapotranspiration. Simultaneously, humans intervene in the hydrologic cycle and pump groundwater to sustain, for example, drinking water and food production. Here we use a coupled groundwater‐to‐atmosphere modeling platform, set up over the European continent, to study the influence of groundwater pumping and irrigation on the net atmospheric moisture import of the continental landmasses, which defines the strength of the continental sink. Water use scenarios are constructed to account for uncertainties of atmospheric feedback during the heatwave year 2003. We find that human water use induces groundwater‐to‐atmosphere feedback, which potentially weaken the continental sink over arid watersheds in southern Europe. This feedback is linked to groundwater storage, which suggests that atmospheric feedbacks to human water use may contribute to drying of watersheds, thereby raising water resources and socio‐economic concerns beyond local sustainability considerations.

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Contributing Institute(s):

1. Agrosphäre (IBG-3)
2. JARA - HPC (JARA-HPC)

Research Program(s):

1. 255 - Terrestrial Systems: From Observation to Prediction (POF3-255) (POF3-255)
2. Fractal Scaling of Hydrodynamics at the Catchment Scale (jicg43_20091101) (jicg43_20091101)

Appears in the scientific report 2018

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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