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:

1. '/cmwe', which provides terrestrial water storage in units of cm. of water equivalent.
2. '/latitude', latitude at the center of each 0.5 degree grid cell
3. /longitude', longitude at the center of each 0.5 degree grid cell
4. '/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.
5. '/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.
6. '/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