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SMAP L3 Daily Global Composite Soil Moisture

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SMAP L3 Daily Global Composite Soil Moisture (SPL3SMP) is a Level-3 product derived from the SMAP mission's passive L-band (1.41 GHz) radiometer. It provides daily global volumetric soil moisture composites on a 36 km EASE-Grid 2.0 projection.[1]

Each daily file is produced by compositing SPL2SMP half-orbit swaths for a single UTC day. Global spatial coverage extends from 85.044 N to 85.044 S. Freeze/thaw state products are limited to boreal regions above 45 degrees North. An enhanced spatial resolution version (SPL3SMP_E) at 9 km is available as a companion product.[1]

Files are distributed in HDF5 format. The current dataset version is v009. The archive begins approximately in April 2015, following the end of the mission commissioning phase.[2]

Distribution is via the NSIDC DAAC. Access is free under the NASA open data policy.[1]

Operator pricing

Free access

Supply chain position

addresses Soil moisture
addresses Groundwater and terrestrial water storage
addresses Drought
Sources
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SMAP L3 Daily Global Composite Soil Moisture. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/data_products/smap-l3-soil-moisture (CC BY 4.0)

BibTeX

@misc{eoatlas:data_products:smap-l3-soil-moisture,
  title = {SMAP L3 Daily Global Composite Soil Moisture},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  note = {CC BY 4.0},
  url = {https://eo-atlas.org/data_products/smap-l3-soil-moisture}
}