Temporal Coverage: 25 August 2011 - 7 June 2015
The Aquarius “Soil Moisture (Daily | Weekly, Radiometer)” layers display global soil moisture in m3/m3. The Level-3 (L3) processing of Aquarius satellite data takes measurements at the boresight locations of the three Aquarius radiometer beams, which are converted into physical units of soil moisture, and maps these onto a 1 degree grid. The mean for the daily observation period is used to obtain the values for the grid.
The Aquarius instrument includes three radiometers and one scatterometer. The soil moisture data are collected by the radiometers. The radiometers measure brightness temperature at 1.414 GHz in the horizontal and vertical polarizations (TH and TV).
References: Aquarius L3 Gridded 1-Degree Daily Soil Moisture; Aquarius L3 Gridded 1-Degree Weekly Soil Moisture; Aquarius Soil Moisture ATBD Users Guide
Data Field: l3m_data