After years of intense drought and diminishing groundwater, California just saw its greatest year-over-year water gains in two decades, according to data from the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellite mission, a partnership between NASA and the German Research Centre for Geosciences (GFZ). This past winter's bonanza of atmospheric rivers alleviated some of the water deficit that the state incurred during periods of drought over the last 10 years, which included the three driest years on record in California.
