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Commercial (Comm) Radio Occultation (RO) Environmental Data Record (EDR) from UCAR using GeoOptics Data

Metadata Updated: September 19, 2023

This dataset contains Commercial (Comm) Radio Occultation (RO) environmental data from UCAR using GeoOptics data, which is an established method for remote sounding of the atmosphere. The technique uses an instrument in low-Earth orbit (LEO) to track radio signals from Global Navigation Satellite System (GNSS) transmitters as they rise or set through the atmosphere. The occulting atmosphere refracts or bends the radio signals, and given the precise positions of both satellites, the bending angle can be deduced from the time delay of the signal. Collecting these measurements for a full occultation through the atmosphere provides a vertical profile of bending angles, from which profiles of physical quantities such as temperature, humidity, and ionospheric electron density can be retrieved. These data primarily feed numerical weather prediction (NWP) models that support weather forecasts, and also support space weather analysis/prediction at NOAA.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date June 23, 2023
Metadata Created Date October 28, 2022
Metadata Updated Date September 19, 2023
Reference Date(s) December 16, 2020 (publication)
Frequency Of Update weekly

Metadata Source

Harvested from ncdc

Graphic Preview

NOAA Data

Additional Metadata

Resource Type Dataset
Metadata Date June 23, 2023
Metadata Created Date October 28, 2022
Metadata Updated Date September 19, 2023
Reference Date(s) December 16, 2020 (publication)
Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
Contact Email
Guid gov.noaa.ncdc:C01614
Access Constraints Cite as: UCAR (2021): Commercial (Comm) Radio Occultation (RO) Environmental Data Record (EDR) from UCAR using GeoOptics Data. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.25921/1807-fp36. [access date]., Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Bbox East Long 180.0
Bbox North Lat 90.0
Bbox South Lat -90.0
Bbox West Long -180.0
Coupled Resource
Frequency Of Update weekly
Graphic Preview Description NOAA Data
Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/noaa_logo.jpg
Graphic Preview Type JPEG
Harvest Object Id 41a1442e-eae0-4cd4-ba42-155c98208e24
Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
Harvest Source Title ncdc
Licence
Lineage Data are created at a private commercial company that was awarded an NOAA Data Buy for Radio Occultation Data. The data were sent from the private company to NOAA NCCF and then distributed to UCAR and then sent to NCEI for archiving.
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2020-12-16
Temporal Extent End 2021-09-16

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