SMAP L1B Polarimetric GNSS Reflectometry, Version 1
Data set id:
NSIDC-0795
DOI: 10.5067/ZF4OXSD2NS7W
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
This product represents the first full polarimetric Global Navigation Satellite System Reflectometry (GNSS-R) dataset, derived from the Soil Moisture Active Passive (SMAP) mission radar. The main parameters are the normalized Stokes parameters, total power normalized bistatic radar cross section, and reflectivity. The SMAP radar receiver, in bistatic radar configuration, measures the horizontal and vertical components of the Global Positioning System (GPS) signal as it is reflected and scatters from the Earth’s surface. Stokes parameters are computed with these horizontal and vertical polarization measurements. The dataset comprises a full reconstruction of the Earth' surface polarimetric values, with approximately 3,200 observations per day and about 1,200,000 per year.
Parameter(s):
RADAR CROSS-SECTIONRADAR REFLECTIVITYSTOKES PARAMETER
Platform(s):
SMAP
Sensor(s):
SMAP L-BAND RADAR
Data Format(s):
netCDF-4
Temporal Coverage:
1 October 2015 to present
Temporal Resolution:
- Varies
Spatial Resolution:
- Not Specified
Spatial Reference System(s):
WGS 84
EPSG:4326
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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