ASCAT Soil Moisture (H SAF)
Gov-Public
Near-real-time scatterometer soil moisture from EUMETSAT — hours of latency, useful for operational monitoring.
3 tools · Topic
Satellite Soil Moisture Data
Microwave satellites measure near-surface soil moisture at continental scale, filling a gap that ground networks never covered well: SMAP, ESA CCI Soil Moisture and ASCAT are the standard products, used for drought monitoring, model calibration and antecedent-moisture inputs to rainfall-runoff models.
The longest satellite soil moisture record available — merged active+passive retrievals back to 1978, free, no login.
SMAP
Gov-Public
NASA's L-band radiometer soil moisture mission — 9km/36km near-surface moisture, daily, since 2015.