GRACE Drought Severity Index (GRACE-DSI)
GRACE-DSI DOWNLOAD
The GRACE-DSI record spans from 2002 to 2014. Post-2014 dataset is available upon request (Meng Zhao). If you are interested in comparing your own dataset with GRACE, we are glad to reprocess your dataset to be compatible with GRACE. Please also contact Meng Zhao for details.
GRACE-DSI calculated from JPL Mascon Solutions User's Guide,
Dataset Download
GRACE-DSI calculated from CSR Spherical Harmonics User's Guide,
Dataset Download
ADDITIONAL DATASETS
Reprocessed Palmer Drought Severity Index (PDSI) that is compatible with Mascon GRACE-DSI Dataset Download
The original self-calibrated PDSI from 2002 to 2014 with Penman-Monteith PE dataset is produced by Dai (2011) and downloaded from http://www.cgd.ucar.edu/cas/catalog/climind/pdsi.html.
Reprocessed Standardized Precipitation and Evapotranspiration Index (SPEI) that is compatible Mascon GRACE-DSI Dataset Download
The original SPEI dataset from 2002 to 2015 (v2.5) is produced by Vincente-Serrano et al. (2010) and downloaded from http://spei.csic.es/database.html.
Reprocessed PDSI that is compatible with Spherical Harmonics GRACE-DSI Dataset Download
Reprocessed SPEI that is compatible with Spherical Harmonics GRACE-DSI Dataset Download
Details in reprocessing these datasets are available in Zhao et al. (2017), J.Hydrometeorol, DOI:https://doi.org/10.1175/JHM-D-16-0182.1.
ADDITIONAL REFERENCES
Zhao, M., G. A, I. Velicogna, and J. Kimball, 2017: Satellite observations of regional drought severity in the continental US using GRACE-based terrestrial water storage changes. J. Climate, 30, 6297-6308, DOI: http://doi.org/10.1175/JCLI-D-16-0458.1.
A, G., I. Velicogna, J. Kimball, J. Du, Y. Kim, A. Colliander and E. Njoku, 2017: Satellite-observed changes in vegetation sensitivities to surface soil moisture and total water storage variations since the 2011 Texas drought. Environ. Res. Lett.,12, 054006, DOI:http://doi.org/10.1088/1748-9326/aa6965
