UCAR/CU CYGNSS Inundation Maps

This dataset provides 3 km maps of inundation fraction for latitudes +/- 38 degrees for the time period Mar 20, 2017 - Jun 30, 2022. Retrievals are derived from the Cyclone Global Navigation Satellite System (CYGNSS) constellation, which uses GNSS-Reflectometry to obtain L-band surface reflectivity observations over the land and ocean surface. To derive the fractional inundation maps, CYGNSS reflectivity observations are first aggregated over a period of 3-days. These observations are then spatially interpolated before they are converted into estimates of inundation fraction. This product was jointly developed by the University Corporation for Atmospheric Research and the University of Colorado Boulder with funding from the NASA Terrestrial Hydrology Program award number 80NSSC19K0046.

To Access Resource:

Questions? Email Resource Support Contact:

  • COSMIC Website
    cosmic-websites@ucar.edu

Temporal Range

  • Begin:  2017-03-20
    End:  2022-06-30

Keywords

Resource Type dataset
Temporal Range Begin 2017-03-20
Temporal Range End 2022-06-30
Temporal Resolution N/A
Bounding Box North Lat 38
Bounding Box South Lat -38
Bounding Box West Long -180
Bounding Box East Long 180
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format netCDF
Standardized Resource Format NetCDF
Asset Size N/A
Legal Constraints

Data use is subject to UCAR terms of use.
Access Constraints Access Constraints: Data are available for use with no restrictions.
Software Implementation Language N/A

Resource Support Name COSMIC Website
Resource Support Email cosmic-websites@ucar.edu
Resource Support Organization
Distributor
Metadata Contact Name COSMIC Website
Metadata Contact Email cosmic-websites@ucar.edu
Metadata Contact Organization

Author Chew, Clara ORCID icon
Small, Eric
Publisher UCAR COSMIC Program

Publication Date 2022
Digital Object Identifier (DOI) https://doi.org/10.5065/fbxc-0e55
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2026-09-02T16:22:59.299571
Metadata Record Identifier 10.5065/fbxc-0e55
Metadata Language eng
Suggested Citation Chew, Clara, Small, Eric. (2022). UCAR/CU CYGNSS Inundation Maps. UCAR COSMIC Program. https://doi.org/10.5065/fbxc-0e55. Accessed 05 September 2026.

Harvest Source