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A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention
Water resources and water scarcity are usually regarded as local aspects for which a watershed‐based management appears adequate. However, precipitation, as a main source of freshwater, may depend on moisture supplied through land evaporation from outside the watershed. This notion of evaporation as...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6988470/ https://www.ncbi.nlm.nih.gov/pubmed/32025063 http://dx.doi.org/10.1029/2019WR025310 |
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author | Keune, J. Miralles, D. G. |
author_facet | Keune, J. Miralles, D. G. |
author_sort | Keune, J. |
collection | PubMed |
description | Water resources and water scarcity are usually regarded as local aspects for which a watershed‐based management appears adequate. However, precipitation, as a main source of freshwater, may depend on moisture supplied through land evaporation from outside the watershed. This notion of evaporation as a local “green water” supply to precipitation is typically not considered in hydrological water assessments. Here we propose the concept of a watershed precipitation recycling network, which establishes atmospheric pathways and links land surface evaporation as a moisture supply to precipitation, hence contributing to local but also remote freshwater resources. Our results show that up to 74% of summer precipitation over European watersheds depends on moisture supplied from other watersheds, which contradicts the conventional consideration of autarkic watersheds. The proposed network approach illustrates atmospheric pathways and enables the objective assessment of freshwater vulnerability and water scarcity risks under global change. The illustrated watershed interdependence emphasizes the need for global water governance to secure freshwater availability. |
format | Online Article Text |
id | pubmed-6988470 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-69884702020-02-03 A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention Keune, J. Miralles, D. G. Water Resour Res Research Articles Water resources and water scarcity are usually regarded as local aspects for which a watershed‐based management appears adequate. However, precipitation, as a main source of freshwater, may depend on moisture supplied through land evaporation from outside the watershed. This notion of evaporation as a local “green water” supply to precipitation is typically not considered in hydrological water assessments. Here we propose the concept of a watershed precipitation recycling network, which establishes atmospheric pathways and links land surface evaporation as a moisture supply to precipitation, hence contributing to local but also remote freshwater resources. Our results show that up to 74% of summer precipitation over European watersheds depends on moisture supplied from other watersheds, which contradicts the conventional consideration of autarkic watersheds. The proposed network approach illustrates atmospheric pathways and enables the objective assessment of freshwater vulnerability and water scarcity risks under global change. The illustrated watershed interdependence emphasizes the need for global water governance to secure freshwater availability. John Wiley and Sons Inc. 2019-11-28 2019-11 /pmc/articles/PMC6988470/ /pubmed/32025063 http://dx.doi.org/10.1029/2019WR025310 Text en ©2019. The Authors. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Research Articles Keune, J. Miralles, D. G. A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title | A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title_full | A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title_fullStr | A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title_full_unstemmed | A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title_short | A Precipitation Recycling Network to Assess Freshwater Vulnerability: Challenging the Watershed Convention |
title_sort | precipitation recycling network to assess freshwater vulnerability: challenging the watershed convention |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6988470/ https://www.ncbi.nlm.nih.gov/pubmed/32025063 http://dx.doi.org/10.1029/2019WR025310 |
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