SMAP/CYGNSS EASE-Grid Soil Moisture, Version 1
Data set id:
NSIDC-0797
DOI: 10.5067/8OODMTVR6RT9
This is the most recent version of these data.
Version Summary
Version Summary
Initial data release.
Overview
This data set is derived by downscaling Soil Moisture Active Passive (SMAP) enhanced Level-3 9 km brightness temperatures (TB) using Cyclone Global Navigation Satellite System (CYGNSS) reflectivity data and employing a slightly modified version of the SMAP baseline active-passive TB algorithm. The SMAP Single Channel Algorithm – Vertical polarization (SCA-V) is then used to derive soil moisture from SMAP/CYGNSS Tb data. The main parameter of this data set is surface soil moisture presented on the Global EASE-Grid 2.0 projection, with each data point representing the top 5 cm of the soil column. For SMAP-derived data, see SMAP Enhanced L3 Radiometer Global and Polar Grid Daily 9 km EASE-Grid Soil Moisture, Version 5; for CYGNSS-derived data, see CYGNSS Level 1, Version 2.1.
Parameter(s):
BRIGHTNESS TEMPERATURESURFACE SOIL MOISTURE
Platform(s):
CYGNSS, SMAP
Sensor(s):
DDMI, SMAP L-BAND RADIOMETER
Data Format(s):
HDF5
Temporal Coverage:
1 April 2017 to 31 December 2023
Temporal Resolution:
- Varies
Spatial Resolution:
- 3 km
- 3 km
Spatial Reference System(s):
WGS 84 / NSIDC EASE-Grid 2.0 Global
EPSG:6933
Spatial Coverage:
N:
40
S:
-40
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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