NCAR Global, 2-hourly Ground-Based GPS Precipitable Water

NCAR global, 2-hourly GPS precipitable water data are derived from ground-based GPS measurements of zenith path delay (ZPD) using three different resources, including the International GNSS (Global Navigation Satellite Systems) Service (IGS) tropospheric products (since year 1995), U.S. SuomiNet (UCAR/COSMIC) products (since year 2002) and Japanese GEONET (GPS Earth Observation Network) data (~1100 stations, 1997-2005). The data are divided into two groups: one is from GEONET network, and the data are available from 1997 to 2005; the other one combines IGS and SuomiNet network, and the data are available since year 1995 and planned to be updated yearly.

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Temporal Range

  • Begin:  1995
    End:  2012

Keywords

Resource Type dataset
Temporal Range Begin 1995
Temporal Range End 2012
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links

Related Resource #1 : GPS PW
Additional Information N/A
Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 1217.354 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Earth Observing Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Publisher NSF National Center for Atmospheric Research
Publication Date 2011-11-01
Digital Object Identifier (DOI) https://doi.org/10.5065/047C-HV45
Alternate Identifier d721001
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-09T01:28:53Z
Metadata Record Identifier edu.ucar.gdex::d721001
Metadata Language eng; USA
Suggested Citation Earth Observing Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research. (2011). NCAR Global, 2-hourly Ground-Based GPS Precipitable Water. NSF National Center for Atmospheric Research. https://doi.org/10.5065/047C-HV45. Accessed 11 October 2025.

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