Skip to main content
U.S. flag

An official website of the United States government

CYGNSS Level 3 Science Data Record Version 3.0

Published by NASA/ESSP/UMICH/CYGNSS;NASA/JPL/PODAAC | National Aeronautics and Space Administration | Catalog Last Checked: November 04, 2026 at 12:58 AM | Dataset Last Updated: November 03, 2026
This dataset contains the Version 3.0 CYGNSS Level 3 Science Data Record which provides the average wind speed and mean square slope (MSS) on a 0.2x0.2 degree latitude by longitude equirectangular grid obtained from the Delay Doppler Mapping Instrument aboard the CYGNSS satellite constellation. The Level 2 Delay Doppler Map (DDM) data are used in the direct processing of the average wind speed and MSS data that are binned on the Level 3 grid. A subset of DDM data used in the direct processing of the average wind speed and MSS is co-located inside of the Level 2 data files. A single netCDF-4 data file is produced for each day of operation with an approximate 6 day latency. This version supersedes Version 2.1; https://doi.org/10.5067/CYGNS-L3X21. The reported sample locations are determined by the specular points corresponding to the Delay Doppler Maps (DDMs). The Version 3.0 release inherits all improvements made to the version 3.0 Level 2 data intended to improve the quality of the wind speed retrievals. For a full list of improvements to the version 3.0 Level 2 data, please refer to: https://doi.org/10.5067/CYGNS-L2X30.

Resources

24 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "026:00"
]
contactPoint 
{
  "fn": "Earthdata Forum",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:earthdata-support@nasa.gov"
}
description This dataset contains the Version 3.0 CYGNSS Level 3 Science Data Record which provides the average wind speed and mean square slope (MSS) on a 0.2x0.2 degree latitude by longitude equirectangular grid obtained from the Delay Doppler Mapping Instrument aboard the CYGNSS satellite constellation. The Level 2 Delay Doppler Map (DDM) data are used in the direct processing of the average wind speed and MSS data that are binned on the Level 3 grid. A subset of DDM data used in the direct processing of the average wind speed and MSS is co-located inside of the Level 2 data files. A single netCDF-4 data file is produced for each day of operation with an approximate 6 day latency. This version supersedes Version 2.1; https://doi.org/10.5067/CYGNS-L3X21. The reported sample locations are determined by the specular points corresponding to the Delay Doppler Maps (DDMs). The Version 3.0 release inherits all improvements made to the version 3.0 Level 2 data intended to improve the quality of the wind speed retrievals. For a full list of improvements to the version 3.0 Level 2 data, please refer to: https://doi.org/10.5067/CYGNS-L2X30.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Original Metadata",
    "format": "ISO",
    "mediaType": "text/xml",
    "conformsTo": "http://www.isotc211.org/2005/gmi",
    "description": "The metadata's original source.",
    "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C2251464874-POCLOUD.iso19115"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_1.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_2.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_3.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_4.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_5.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_6.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_7.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "TXT",
    "mediaType": "text/plain",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L1/docs/att_tables/Attitude_Table_FM_8.txt"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L3/docs/148-0319_ATBD_L3_Gridded_Wind_Speed_Rev1_Aug2018_release.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/cygnss/open/L3/docs/148-0351-3_L3_v3.0_netCDF_Data_Dictionary.xlsx"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://cmr.earthdata.nasa.gov/virtual-directory/collections/C2251464874-POCLOUD/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://cygnss.engin.umich.edu/"
  },
  {
    "@type": "dcat:Distribution",
    "format": "PDF",
    "mediaType": "application/pdf",
    "downloadURL": "https://cygnss.engin.umich.edu/wp-content/uploads/sites/534/2021/06/CYGNSS_Handbook_April2016.pdf"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://docs.google.com/spreadsheets/d/1AFAZanVGDApLSnJQAAdPfOKoJQs0jnB8ZvIuD1Z5mAc/edit#gid=0"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://doi.org/10.1175/BAMS-D-14-00218.1"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://doi.org/10.1175/BAMS-D-18-0337.1"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://doi.org/10.3998/mpub.12741920"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://github.com/podaac/data-readers"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://github.com/podaac/data-subscriber"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://opendap.earthdata.nasa.gov"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://podaac.jpl.nasa.gov/CitingPODAAC"
  },
  {
    "@type": "dcat:Distribution",
    "format": "JPEG",
    "mediaType": "image/jpeg",
    "downloadURL": "https://podaac.jpl.nasa.gov/Podaac/thumbnails/CYGNSS_L3_V3.0.jpg"
  },
  {
    "@type": "dcat:Distribution",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://search.earthdata.nasa.gov/search/granules?p=C2251464874-POCLOUD"
  }
]
identifier 10.5067/CYGNS-L3X30
keyword 
[
  "earth-science-ocean-winds-oceans-surface-winds"
]
license https://www.usa.gov/government-works
modified 2026-11-03
programCode 
[
  "026:000"
]
publisher 
{
  "name": "NASA/ESSP/UMICH/CYGNSS;NASA/JPL/PODAAC",
  "@type": "org:Organization"
}
spatial 
"["CARTESIAN", [{"NorthBoundingCoordinate": 40.0, "WestBoundingCoordinate": -180.0, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": -40.0}]]"
temporal 2018-08-01/2026-10-26
theme 
[
  "Earth Science"
]
title CYGNSS Level 3 Science Data Record Version 3.0

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov