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Data Set ID: 
SPL1BS0

SMAP L1B Radar Half-Orbit Time-Ordered Low-Resolution σo Data, Version 1

This Level-1B (L1B) product provides time-ordered, parsed telemetry data retrieved by the Soil Moisture Active Passive (SMAP) radar during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. The major contents of the product are normalized radar cross section (sigma nought) measurements that represent discrete backscatter footprints on the Earth’s surface, as well as representative backscatter measurements for a set of slices within each footprint.

NSIDC does not archive these data.

Version Summary: 

This version of the data set may not represent the most recent release. Users should visit the ASF DAAC to find the most up-to-date information; access is provided through the “Download Data” tab.

For the full major and minor version history, go to https://nsidc.org/data/smap/data_versions.

Parameter(s):
  • Radar > Radar Backscatter > Sigma Nought
Data Format(s):
  • HDF5
Spatial Coverage:
N: 85.044, 
S: -85.044, 
E: 180, 
W: -180
Platform(s):SMAP Observatory
Spatial Resolution:
  • 1 km to 3 km x 1 km to 3 km
Sensor(s):SMAP L-Band Radar
Temporal Coverage:
  • 13 April 2015 to 7 July 2015
Version(s):V1
Temporal Resolution49 minuteMetadata XML:View Metadata Record
Data Contributor(s):West, R.

Geographic Coverage
Please contact the data provider for the correct Data Citation for this data set.
A user guide is not available for this data set.
No technical references available for this data set.
No FAQs or How Tos available for this data set.

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Email: nsidc@nsidc.org