COWVR STP-H8 Antenna and Microwave Brightness Temperatures Version 10.0

Description

This data set includes satellite-based observations of calibrated, geo-located antenna temperature and brightness temperatures, along with the sensor telemetry used to derive those values. Brightness temperatures are derived from the microwave band frequencies 18.7 GHz, 23.8 GHz, and 34.5 GHz. This product is best suited for a cal/val user or sensor expert. These level 1c measurements make up the temperature sensor data record (TSDR) from the COWVR (Compact Ocean Wind Vector Radiometer) sensor aboard the international space station (ISS), starting in January 2022 forward-streaming to PO.DAAC till the planned mission end in December 2024. Its swath width is 1012 km and spatial resolution is <35 km. Data files in HDF5 format are available at roughly hourly frequency (the ISS orbit period is ~90 minutes), although note that the coverage shown in the thumbnail is for a full day. Files include calibration and flag data in addition to brightness temperatures. Version 10.0 is the first public release, and is named as such to be consistent with the internal version numbers of the project team prior to release

The COWVR sensor is a fully polarimetric, conically imaging microwave radiometer for measuring ocean surface wind vectors. It operates nominally on-orbit aboard the ISS and data are non-sun-synchronous. It was deployed as part of the Space Test Program - Houston 8 (STP-H8) technology demonstration mission. A successful COWVR mission will demonstrate a lower-cost sensor architecture (e.g. in comparison to WindSat) for providing imaging passive microwave data, including ocean surface vector wind products for the Department of Defense (DoD). COWVR was provided by the Jet Propulsion Laboratory and flown by the United States Space Force, Space Systems Command, Development Corps for Innovation and Prototyping.

Resources

Name Format Description Link
33 Detailed description of algorithms for processing and calibration of COWVR https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cowvr-tempest/open/docs/COWVR_ATBD_20160820.pdf
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FCOWVR-STPH8-TSDR100
21 Browse granule search results in Earthdata Search https://search.earthdata.nasa.gov/search/granules?p=C3237785963-POCLOUD
21 HTTPS endpoint for data browse and download https://cmr.earthdata.nasa.gov/virtual-directory/collections/C3237785963-POCLOUD
21 Data Use and Citation Policy https://podaac.jpl.nasa.gov/CitingPODAAC
22 Thumbnail https://podaac.jpl.nasa.gov/Podaac/thumbnails/COWVR_STPH8_L1_TSDR_V10.0.jpg
21 COWVR-TEMPEST project page on the PO.DAAC website https://podaac.jpl.nasa.gov/COWVR-TEMPEST
33 Data Product Development Document providing an overview of the project, instrument, and data file contents https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cowvr-tempest/open/docs/DPDD_COWVR_STPH8_L1_TSDR_V10.0.pdf

Tags

  • spectral-engineering
  • microwave
  • earth-science

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