Fig. 2 (from Reager et al., 2016, Science) Storage trends partitioned into hydrologic gains and losses.

(Left) As in Fig. 1, but separated by negative (top) and positive (bottom) land water storage trends. (Middle) The zonal average of the negative (top) and positive (bottom) trend map (gigatons per year per 1/2-degree grid). (Right) GRACE land water storage time series averaged for the negative (top) and positive (bottom) land water storage trend map (climatology removed). Estimated glacier trends are shown in the supplementary materials (44).

Author:Jay Famiglietti

Jay Famiglietti is a hydrologist, a Global Futures Professor at Arizona State University, and a science communicator. He is Executive Director Emeritus of theĀ Global Institute for Water Security at the University of Saskatchewan, where he held the Canada 150 Research Chair in Hydrology and Remote Sensing. He was founding Chief Scientist of the Silicon Valley tech startup, Waterplan, which he continues to advise. Before moving to Saskatchewan, he served as the Senior Water Scientist at the NASA Jet Propulsion Laboratory at the California Institute of Technology. Famiglietti and his research team use satellites and develop computer models to track changing freshwater availability and groundwater depletion around the world. He is an active speaker, a frequent advisor to national and international government officials on water issues, and avid writer for the general public.


Subscribe to our RSS feed and social profiles to receive updates.