Indicator: Soil Moisture

Indicator	Soil Moisture
Status	Automated on Landler
Land covers	Cropland, Forestry, Grassland, Savannah
Description	Volume of water present in the soil scaled to the top 30 cm (typically the A horizon). Displays as m³/Plot and m³/ha, with a smoothed and interpolated curve of measurements covering the past five years. Trends since 2018 shown as a percentage (%).
Unit	m³ (total and per hectare)
Temporal Resolution	Near-real time Assessment (3-5 days)
Spatial Resolution	100m
Data	Satellite data (SMAP, SMOS, Landsat, MODIS, Sentinel 2)
Method	Soil moisture content is monitored using a combination of satellite data sources, including passive microwave data (from SMAP and SMOS), thermal data (from Landsat, MODIS, and Sentinel 3), and optical data (from Sentinel 2). These data streams are integrated using a spatial downscaling algorithm, resulting in an up-to-daily time-series of volumetric soil moisture content since 2016, at 100m resolution.