Terrestrial water storage changes across the contiguous United States from GPS and GRACE, 2007–2017

In this dataset, we provide terrestrial water storage anomalies (TWSA) from 2007-2017 at weekly time scales derived using Global Positioning System (GPS) displacements, further constrained by lower-resolution TWSA observations from the Gravity Recovery and Climate Experiment (GRACE).

There are six fields in the HDF5 product provided here:

'/cmwe', which provides terrestrial water storage in units of cm. of water equivalent.

'/latitude', latitude at the center of each 0.5 degree grid cell

/longitude', longitude at the center of each 0.5 degree grid cell

'/time', time in days since January 1st, 2007. The resolution of our time series is weekly, and the first day in our record is January 3rd, 2007.

'/signal_to_noise_ratio', the variance of the signal divided by variance of noise for each grid cell in the dataset. Please read the supplementary information document in the paper below for more details.

'/uncertainty', 95% confidence interval for each grid cell in the dataset. Please read the supplementary information document in the paper below for more details.

As a condition of using these data, we request that you acknowledge the authors of this data set by citing the following peer-reviewed publication. 

Adusumilli, S., Borsa, A. A., Fish, M. A., McMillan, H. K., & Silverii, F. (2019). A decade of water storage changes across the contiguous United States from GPS and Satellite Gravity. Geophysical Research Letters, 46, 13006-13015. https://doi.org/10.1029/2019GL085370