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Quantifying ground- and surface water loss during the 2012-2017 drought in northeast Brazil using gravity data from GRACE satellite mission

From 2012 to 2017 the Brazilian Northeast suffered the longest period of drought ever recorded in the history of the country.
We used spaceborne gravity data in order to approximate the rate at which water storage diminished over the period of 6 years and estimated the total quantity of water lost in a selected area in the State of Rio Grande do Norte.
The gravity data was measured by the Gravity Recovery and Climate Experiment (GRACE) mission (2002-2017).

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