Improvement of the Optimal Blended NLDAS Drought Index (OBNDI) by Incorporating USGS Runoff Percentile and NCEI Operational Drought Indices
Youlong Xia, IMSG at EMC/NCEP, College Park, MD; and M. B. Ek, K. Mitchell, M. J. Brewer, C. D. Peters-Lidard, and D. M. Mocko