Parametrized Rain Impact Model for SMAP L2 V1.0

Description

This is the PI-produced SMAP-SSS, level 2B CAP, validated sea surface salinity and extreme winds orbital/swath product from the NASA Soil Moisture Active Passive (SMAP) observatory. It is based on the Parameterized Rain Impact Model (PRIM) developed at the University of Central Florida (UCF) Central Florida Remote Sensing Lab (CFRSL), Orlando, FL; University of Washington (UW) Applied Physics Lab (APL), Seattle, WA. The PRIM product includes data for a range of parameters: derived SMAP sea surface salinity (SSS) and wind speed/direction data for extreme winds, brightness temperatures for each radiometer polarization, ancillary reference surface salinity, wind and wave height data, quality flags, and navigation data. Each data file covers one 98-minute orbit (15 files per day). Data begins on April 1,2015 and is ongoing, with a 3 day latency in processing and availability. Observations are global in extent and provided at 25km swath grid with an approximate spatial resolution of 60 km. The SMAP satellite is in a near-polar orbit at an inclination of 98 degrees and an altitude of 685 km. It has an ascending node time of 6 pm and is sun-synchronous. With its 1000km swath, SMAP achieves global coverage in approximately 3 days, but has an exact orbit repeat cycle of 8 days. On board Instruments include a highly sensitive L-band radiometer operating at 1.41GHz and an L-band 1.26GHz radar sensor providing complementary active and passive sensing capabilities. Malfunction of the SMAP scatterometer on 7 July, 2015, has necessitated the use of collocated wind speed for the surface roughness correction required for the surface salinity retrieval.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FPRIMS-2RSW1
21 SMAP Project and Instrument Overview http://podaac.jpl.nasa.gov/smap
21 Data Subscriber https://github.com/podaac/data-subscriber
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/PRIM_SMAP_L2_V1.jpg
21 NASA SMAP Mission Website http://smap.jpl.nasa.gov/
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C2637180124-POCLOUD
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2637180124-POCLOUD
33 PRIM ATBD and User Guide https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/smap/open/docs/PRIM_SMAP_L2_V1/PRIM_user_guide.pdf
21 Generic data readers https://github.com/podaac/data-readers

Tags

  • salinity-density
  • oceans
  • ocean-winds
  • earth-science

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