Terrestrial Water Storage Forecasts

The terrestrial water storage (TWS) forecasts are produced using the Catchment Land Surface Model (CLSM) forced with NASA’s Goddard Earth Observing System (GEOS), and is a part of NASA’s Hydrological Forecast and Analysis System (NHyFAS). The initial conditions in this system do not use data assimilation. The TWS forecast data is over continental Africa and the Middle East at 25km or 0.25deg spatial resolution and monthly temporal resolution. It covers the period between 1982 to 2019, the forecasts are initialized on the first of every month from 1982 through 2018 and the forecast leads extend out to 6 months. The TWS forecasts are included as monthly files with the following coordinates: 37years(1982-2018) x 6leads x 4ensembles x 320latitudes x 320longitudes.