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SMAP Data
The following table lists SMAP science data that are available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Related data are also provided on this page.
Standard Data Sets
| Title | Spatial Coverage | Temporal Coverage | Spatial Resolution | Temporal Resolution | Parameter(s) |
|---|---|---|---|---|---|
|
SMAP L1A Radiometer Time-Ordered Parsed Telemetry, Version 2 (SPL1AP) |
N: 86.4, S: -86.4, E: 180, W: -180 | 2015/03/31 | 40 km x 40 km | 49 minute | Instrument Counts |
|
SMAP L1B Radiometer Half-Orbit Time-Ordered Brightness Temperatures, Version 3 (SPL1BTB) |
N: 86.4, S: -86.4, E: 180, W: -180 | 2015/03/31 | 47 km x 36 km | 49 minute | Antenna Temperature, Brightness Temperature |
|
SMAP L1C Radiometer Half-Orbit 36 km EASE-Grid Brightness Temperatures, Version 3 (SPL1CTB) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 36 km x 36 km | 49 minute | Brightness Temperature |
|
SMAP Enhanced L1C Radiometer Half-Orbit 9 km EASE-Grid Brightness Temperatures, Version 1 (SPL1CTB_E) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 49 minute | Brightness Temperature |
|
SMAP L2 Radar Half-Orbit 3 km EASE-Grid Soil Moisture, Version 3 (SPL2SMA) |
N: 85.044, S: -85.044, E: 180, W: -180 |
2015/04/13 to 2015/07/07 |
3 km x 3 km | 49 minute | Sigma Nought, Soil Moisture |
|
SMAP L2 Radar/Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture, Version 3 (SPL2SMAP) |
N: 85.044, S: -85.044, E: 180, W: -180 |
2015/04/13 to 2015/07/07 |
9 km x 9 km | 49 minute | Brightness Temperature, Sigma Nought, Soil Moisture |
|
SMAP L2 Radiometer Half-Orbit 36 km EASE-Grid Soil Moisture, Version 4 (SPL2SMP) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 36 km x 36 km | 49 minute | Brightness Temperature, Soil Moisture |
|
SMAP Enhanced L2 Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture, Version 1 (SPL2SMP_E) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 49 minute | Brightness Temperature, Soil Moisture |
|
SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State, Version 3 (SPL3FTA) |
N: 85.044, S: 45, E: 180, W: -180 |
2015/04/13 to 2015/07/07 |
3 km x 3 km | 1 day | Freeze/Thaw State, Sigma Nought, Transition Direction |
|
SMAP L3 Radiometer Northern Hemisphere Daily 36 km EASE-Grid Freeze/Thaw State, Version 1 (SPL3FTP) |
N: 85.044, S: 45, E: 180, W: -180 | 2015/03/31 | 36 km x 36 km | 1 day | Brightness Temperature, Freeze/Thaw State, Transition Direction |
|
SMAP Enhanced L3 Radiometer Northern Hemisphere Daily 9 km EASE-Grid Freeze/Thaw State, Version 1 (SPL3FTP_E) |
N: 85.044, S: 45, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 1 day | Brightness Temperature, Freeze/Thaw State, Transition Direction |
|
SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture, Version 3 (SPL3SMA) |
N: 85.044, S: -85.044, E: 180, W: -180 |
2015/04/13 to 2015/07/07 |
3 km x 3 km | 1 day | Sigma Nought, Soil Moisture |
|
SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil Moisture, Version 3 (SPL3SMAP) |
N: 85.044, S: -85.044, E: 180, W: -180 |
2015/04/13 to 2015/07/07 |
9 km x 9 km | 1 day | Brightness Temperature, Sigma Nought, Soil Moisture |
|
SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture, Version 4 (SPL3SMP) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 36 km x 36 km | 1 day | Brightness Temperature, Soil Moisture |
|
SMAP Enhanced L3 Radiometer Global Daily 9 km EASE-Grid Soil Moisture, Version 1 (SPL3SMP_E) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 1 day | Brightness Temperature, Soil Moisture |
|
SMAP L4 Global Daily 9 km Carbon Net Ecosystem Exchange, Version 2 (SPL4CMDL) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 1 day | Gross Primary Productivity (GPP), Heterotrophic Respiration (Rh), Net Ecosystem CO2 Exchange (NEE), Soil Organic Carbon (SOC) |
|
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Analysis Update, Version 2 (SPL4SMAU) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 3 hour | Root Zone Soil Moisture, Surface Soil Moisture |
|
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Geophysical Data, Version 2 (SPL4SMGP) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 3 hour | Root Zone Soil Moisture, Surface Soil Moisture |
|
SMAP L4 9 km EASE-Grid Surface and Root Zone Soil Moisture Land Model Constants, Version 2 (SPL4SMLM) |
N: 85.044, S: -85.044, E: 180, W: -180 | 2015/03/31 | 9 km x 9 km | 3 hour | Soil Classification, Soil Depth, Soil Porosity, Soil Texture, Terrain Elevation |
Related Data Sets
| Title | Spatial Coverage | Temporal Coverage | Spatial Resolution | Temporal Resolution | Parameter(s) |
|---|---|---|---|---|---|
|
AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids, Version 2 (AE_Land) |
N: 89.24, S: -89.24, E: 180, W: -180 |
2002/06/18 to 2011/10/03 |
25 km x 25 km | 50 minute | Soil Moisture/Water Content, Vegetation Water Content |
|
AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parameters, & QC EASE-Grids, Version 2 (AE_Land3) |
N: 89.24, S: -89.24, E: 180, W: -180 |
2002/06/19 to 2011/10/03 |
25 km x 25 km | 1 day | Brightness Temperature, Microwave Imagery, Soil Moisture/Water Content, Vegetation Water Content |
|
Aquarius L3 Gridded 1-Degree Annual Soil Moisture, Version 4 (AQ3_ANSM) |
N: 90, S: -90, E: 180, W: -180 |
2011/08/25 to 2015/06/07 |
1 Degree x 1 Degree | 12 month | Soil Moisture/Water Content |
|
Aquarius L3 Gridded 1-Degree Daily Soil Moisture, Version 4 (AQ3_DYSM) |
N: 90, S: -90, E: 180, W: -180 |
2011/08/25 to 2015/06/07 |
1 Degree x 1 Degree | 1 day | Soil Moisture/Water Content |
|
Aquarius L3 Gridded 1-Degree Monthly Soil Moisture, Version 4 (AQ3_MOSM) |
N: 90, S: -90, E: 180, W: -180 |
2011/08/25 to 2015/06/07 |
1 Degree x 1 Degree | 1 month | Soil Moisture/Water Content |
|
Aquarius L3 Gridded 1-Degree Seasonal Soil Moisture, Version 4 (AQ3_SNSM) |
N: 90, S: -90, E: 180, W: -180 |
2011/08/25 to 2015/06/07 |
1 Degree x 1 Degree | 3 month | Soil Moisture/Water Content |
|
Aquarius L3 Gridded 1-Degree Weekly Soil Moisture, Version 4 (AQ3_WKSM) |
N: 90, S: -90, E: 180, W: -180 |
2011/08/25 to 2015/06/07 |
1 Degree x 1 Degree | 7 day | Soil Moisture/Water Content |
|
AMSR-E/AMSR2 Unified L2B Half-Orbit 25 km EASE-Grid Surface Soil Moisture, Version 1 (AU_LAND) |
N: 89.24, S: -89.24, E: 180, W: -180 |
2002/07/23 to 2011/10/04 2012/05/18 |
25 km x 25 km | 50 minute | Soil Moisture/Water Content, Vegetation Water Content |
Related Data Collections
| Data Sets and Collections | Details and Data |
|---|---|
| International Soil Moisture Network (ISMN) | More Details | Get Data * |
| Soil Moisture Ocean Salinity (SMOS) Mission | More Details | Get Data * |
| * NSIDC does not archive this data set or collection. | |
