Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe
Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns about the sustainability of global water resources. However, our knowledge regarding the long-term trends in TWS and its components is still not well documented. In this study, we cha...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:7dc8764f40b24698b27a421eb6090ed1 2023-05-15T15:09:56+02:00 Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe X. Liu X. Feng P. Ciais B. Fu 2020-07-01 https://doi.org/10.5194/hess-24-3663-2020 https://hess.copernicus.org/articles/24/3663/2020/hess-24-3663-2020.pdf https://doaj.org/article/7dc8764f40b24698b27a421eb6090ed1 en eng Copernicus Publications doi:10.5194/hess-24-3663-2020 1027-5606 1607-7938 https://hess.copernicus.org/articles/24/3663/2020/hess-24-3663-2020.pdf https://doaj.org/article/7dc8764f40b24698b27a421eb6090ed1 undefined Hydrology and Earth System Sciences, Vol 24, Pp 3663-3676 (2020) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.5194/hess-24-3663-2020 2023-01-22T17:53:18Z Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns about the sustainability of global water resources. However, our knowledge regarding the long-term trends in TWS and its components is still not well documented. In this study, we characterize the spatiotemporal variations in TWS and its components over the Asian and eastern European regions from April 2002 to June 2017 based on Gravity Recovery and Climate Experiment (GRACE) satellite observations, land surface model simulations, and precipitation observations. The connections of TWS and global major teleconnections (TCs) are also discussed. The results indicate a widespread decline in TWS during 2002–2017, and five hotspots of TWS negative trends were identified with trends between −8.94 and −21.79 mm yr−1. TWS partitioning suggests that these negative trends are primarily attributed to the intensive over-extraction of groundwater and warmth-induced surface water loss, but the contributions of each hydrological component vary among hotspots. The results also indicate that the El Niño–Southern Oscillation, Arctic Oscillation and North Atlantic Oscillation are the three largest dominant factors controlling the variations in TWS through the covariability effect on climate variables. However, seasonal results suggest a divergent response of hydrological components to TCs among seasons and hotspots. Our findings provide insights into changes in TWS and its components over the Asian and eastern European regions, where there is a growing demand for food grains and water supplies. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Unknown Arctic Hydrology and Earth System Sciences 24 7 3663 3676 |
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envir geo X. Liu X. Feng P. Ciais B. Fu Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
topic_facet |
envir geo |
description |
Recent global changes in terrestrial water storage (TWS) and associated freshwater availability raise major concerns about the sustainability of global water resources. However, our knowledge regarding the long-term trends in TWS and its components is still not well documented. In this study, we characterize the spatiotemporal variations in TWS and its components over the Asian and eastern European regions from April 2002 to June 2017 based on Gravity Recovery and Climate Experiment (GRACE) satellite observations, land surface model simulations, and precipitation observations. The connections of TWS and global major teleconnections (TCs) are also discussed. The results indicate a widespread decline in TWS during 2002–2017, and five hotspots of TWS negative trends were identified with trends between −8.94 and −21.79 mm yr−1. TWS partitioning suggests that these negative trends are primarily attributed to the intensive over-extraction of groundwater and warmth-induced surface water loss, but the contributions of each hydrological component vary among hotspots. The results also indicate that the El Niño–Southern Oscillation, Arctic Oscillation and North Atlantic Oscillation are the three largest dominant factors controlling the variations in TWS through the covariability effect on climate variables. However, seasonal results suggest a divergent response of hydrological components to TCs among seasons and hotspots. Our findings provide insights into changes in TWS and its components over the Asian and eastern European regions, where there is a growing demand for food grains and water supplies. |
format |
Article in Journal/Newspaper |
author |
X. Liu X. Feng P. Ciais B. Fu |
author_facet |
X. Liu X. Feng P. Ciais B. Fu |
author_sort |
X. Liu |
title |
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
title_short |
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
title_full |
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
title_fullStr |
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
title_full_unstemmed |
Widespread decline in terrestrial water storage and its link to teleconnections across Asia and eastern Europe |
title_sort |
widespread decline in terrestrial water storage and its link to teleconnections across asia and eastern europe |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/hess-24-3663-2020 https://hess.copernicus.org/articles/24/3663/2020/hess-24-3663-2020.pdf https://doaj.org/article/7dc8764f40b24698b27a421eb6090ed1 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
Hydrology and Earth System Sciences, Vol 24, Pp 3663-3676 (2020) |
op_relation |
doi:10.5194/hess-24-3663-2020 1027-5606 1607-7938 https://hess.copernicus.org/articles/24/3663/2020/hess-24-3663-2020.pdf https://doaj.org/article/7dc8764f40b24698b27a421eb6090ed1 |
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op_doi |
https://doi.org/10.5194/hess-24-3663-2020 |
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Hydrology and Earth System Sciences |
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24 |
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7 |
container_start_page |
3663 |
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3676 |
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