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Famine Early Warning System Network (FEWS NET) Land Data Assimilation System (LDAS)

FLDAS produced global 10KM resolution soil moisture estimates (1982-present), updated twice a month. Image from GES DISC.
FLDAS produced global 10KM resolution soil moisture estimates (1982-present), updated twice a month. Image from GES DISC.
What We Do

The FLDAS is a hydrologic modeling system developed to meet the needs of food and water security applications.

Location

Global

How Satellites Make This Work

The FLDAS project aims to effectively use limited available hydroclimatic observations for routine use for FEWS NET decision support. FLDAS (McNally et al. 2017) is a custom instance of the NASA Land Information System (LIS), which allows FEWS NET to leverage existing land surface models and generate ensembles of soil moisture, ET, and other variables based on multiple meteorological inputs or land surface models. FLDAS uses a combination of the Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) data and Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS) (Funk et al., 2015).

Lead
Amy McNally, FEWS NET, NASA GSFC, UMD ESSIC
Team Members

Jossy Jacob, NASA GSFC

Daniel Sarmiento, NASA GSFC

Abheera Hazra, NASA GSFC

Kristi Arsenault, NASA GSFC

Kristine Verdin, NASA GSFC

Augusto Getirana, NASA GSFC

Christa Peters-Lidard, NASA GSFC

NASA Land Information System (LIS) team

Learn More

FEWSNET on NASA GSFC website