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Résultats pour:
Rodell, M., NASA Goddard Space Flight Center, Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, USA, Famiglietti, J. S., California Institute of Technology, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA, University of Saskatchewan, Global Institute for Water Security, School of Environment and Sustainability, and Department of Geography and Planning, University of Saskatchewan, Saskatoon, Canada, Wiese, D. N., California Institute of Technology, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA, Reager, J. T., California Institute of Technology, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA, Beaudoing, H. K., NASA Goddard Space Flight Center, Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, USA, Earth System Science Interdisciplinary Center, University of Maryland, Earth System Science Interdisciplinary Center, University of Maryland, Colle
Freshwater availability is changing worldwide. Here we quantify 34 trends in terrestrial water storage observed by the Gravity Recovery and Climate Experiment (GRACE) satellites during 2002–2016 and categorize their drivers as natural interannual variability, unsustainable groundwater consumption, climate change or combinations thereof. Several of these trends had been lacking thorough investigation and attribution, including massive changes in northwestern China and the Okavango Delta. Others are consistent with climate model predictions. This observation-based assessment of how the world’s water landscape is responding to human impacts and climate variations provides a blueprint for evaluating and predicting emerging threats to water and food security. Analysis of 2002–2016 GRACE satellite observations of terrestrial water storage reveals substantial changes in freshwater resources globally, which are driven by natural and anthropogenic climate variability and human activities.