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) and the NASA Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). Related data are also provided on this page.
|Data Set ID||SMAP Data Set Description||Resolution||Latency¹||ATBD²||Source³|
|SPL1BS0||5x30 km||12 hrs||View||ASF|
|SPL1BTB||36x47 km||12 hrs||View||NSIDC|
|SPL1CS0||1 km||12 hrs||View||ASF|
|SPL1CTB||36 km||12 hrs||View||NSIDC|
|SPL2SMA||3 km||24 hrs||View||NSIDC|
|SPL2SMP||36 km||24 hrs||View||NSIDC|
|SPL2SMAP||9 km||24 hrs||View||NSIDC|
|SPL3FTA||3 km||50 hrs||View||NSIDC|
|SPL3SMA||3 km||50 hrs||View||NSIDC|
|SPL3SMP||36 km||50 hrs||View||NSIDC|
|SPL3SMAP||9 km||50 hrs||View||NSIDC|
|SPL4SMAU||9 km||2.5 days||View||NSIDC|
|SPL4SMGP||9 km||2.5 days||View||NSIDC|
|SPL4SMLM||9 km||2.5 days||View||NSIDC|
|SPL4CMDL||9 km||14 days||View||NSIDC|
¹ Mean latency under normal operating conditions (defined as time from data acquisition by the observatory to availability in the public data archive).
² Algorithm Theoretical Basis Documents (ATBDs) provide physical and mathematical descriptions of the algorithms used in the generation of science data. The ATBDs include a description of variance and uncertainty estimates as well as considerations of calibration and validation, exception control, and diagnostics. Internal and external data flows are also described.
³ NSIDC and ASF are Distributed Active Archive Centers (DAACs), NASA-designated data centers.
|Data Sets and Collections||Details and Data|
|AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Params, & QC EASE-Grids (AE_Land)||More Details | Get Data|
|AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Params, & QC EASE-Grids (AE_Land3)||More Details | Get Data|
|Aquarius L3 Gridded 1-Degree Daily Soil Moisture (AQ3_DYSM)||More Details | Get Data|
|Aquarius L3 Gridded 1-Degree Weekly Soil Moisture (AQ3_WKSM)||More Details | Get Data|
|Aquarius L3 Gridded 1-Degree Monthly Soil Moisture (AQ3_MOSM)||More Details | Get Data|
|Aquarius L3 Gridded 1-Degree Seasonal Soil Moisture (AQ3_SNSM)||More Details | Get Data|
|Aquarius L3 Gridded 1-Degree Annual Soil Moisture (AQ3_ANSM)||More Details | Get 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.