SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V004
This enhanced Level-1C (L1C) product contains calibrated and geolocated brightness temperatures acquired by the Soil Moisture Active Passive (SMAP) radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. This product is derived from SMAP Level-1B (L1B) interpolated antenna temperatures. Backus-Gilbert optimal interpolation techniques are used to extract enhanced information from SMAP antenna temperatures before they are converted to brightness temperatures. The resulting brightness temperatures are posted to an Earth-fixed, 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) in three projections: global cylindrical, Northern Hemisphere azimuthal, and Southern Hemisphere azimuthal.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "NSIDC Services", "@type": "vcard:Contact", "hasEmail": "mailto:nsidc@nsidc.org" } |
| description | This enhanced Level-1C (L1C) product contains calibrated and geolocated brightness temperatures acquired by the Soil Moisture Active Passive (SMAP) radiometer during 6:00 a.m. descending and 6:00 p.m. ascending half-orbit passes. This product is derived from SMAP Level-1B (L1B) interpolated antenna temperatures. Backus-Gilbert optimal interpolation techniques are used to extract enhanced information from SMAP antenna temperatures before they are converted to brightness temperatures. The resulting brightness temperatures are posted to an Earth-fixed, 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0) in three projections: global cylindrical, Northern Hemisphere azimuthal, and Southern Hemisphere azimuthal. |
| distribution |
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| identifier | C2776463717-NSIDC_ECS |
| issued | 2015-03-31 |
| keyword |
[ "earth-science", "microwave", "spectral-engineering" ] |
| landingPage | https://doi.org/10.5067/99LHDR3NUM47 |
| language |
[ "en-US" ] |
| modified | 2025-07-17 |
| programCode |
[ "026:001" ] |
| publisher |
{ "name": "NASA NSIDC DAAC", "@type": "org:Organization" } |
| spatial | -180.0 -85.044 180.0 85.044 |
| temporal | 2015-03-31T00:00:00Z/2025-03-24T00:00:00Z |
| theme |
[ "geospatial" ] |
| title | SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures V004 |
