SMAP Radiometer Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures, Version 3
Data set id:
NSIDC-0738
DOI: 10.5067/8OULQIU7ZPSX
This is the most recent version of these data.
Version Summary
Version Summary
The following updates to NSIDC-0738 v2 are reflected in NSIDC-0738 v3:
- Updated all input SPL1BTB data to the latest L1 reprocessing, SPL1BTB v6.
- Fixed a bug in v2 processing that was not properly excluding low-quality input swaths.
- Updated filename convention to be consistent with NSIDC-0630 v2 conventions.
- Replaced attribute missing_value with _FillValue to be consistent with NSIDC-0630 v2 conventions.
- Updated file-level metadata to be consistent with NSIDC-0630 v2 conventions.
- Processing is expected to continue in daily near real-time, rather than previous deliveries of annual data.
- Updated all input SPL1BTB data to the latest L1 reprocessing, SPL1BTB v6.
- Fixed a bug in v2 processing that was not properly excluding low-quality input swaths.
- Updated filename convention to be consistent with NSIDC-0630 v2 conventions.
- Replaced attribute missing_value with _FillValue to be consistent with NSIDC-0630 v2 conventions.
- Updated file-level metadata to be consistent with NSIDC-0630 v2 conventions.
- Processing is expected to continue in daily near real-time, rather than previous deliveries of annual data.
Overview
This data set contains twice-daily, enhanced-resolution brightness temperature data produced by image reconstruction of the standard SMAP product, SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures (SPL1BTB). Data are available in the Northern Hemisphere, Southern Hemisphere, Temperate, and Mid-Latitude (subset of Global) EASE-Grid 2.0 projections and on the 3 km, 3.125 km, 9 km, 25 km, and 36 km resolution grids. This is a companion product for the Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set. The same SIR technique is applied to derive brightness temperatures from the SMMR, AMSR-E, and SSM/I-SSMIS sensors as for that data set.
Parameter(s):
BRIGHTNESS TEMPERATURE
Platform(s):
SMAP
Sensor(s):
SMAP L-BAND RADIOMETER
Data Format(s):
netCDF-4
Temporal Coverage:
- 31 March 2015 to present
Temporal Resolution:
- 12 hour
Spatial Resolution:
- varies
- varies
Spatial Reference System(s):
- WGS 84 / NSIDC EASE-Grid 2.0 NorthEPSG:6931
- WGS 84 / NSIDC EASE-Grid 2.0 SouthEPSG:6932
- WGS 84 / NSIDC EASE-Grid 2.0 GlobalEPSG:6933
Spatial Coverage:
- N:90S:-90E:180W:-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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