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
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 . (2011). NCAR Global, 2-hourly Ground-Based GPS Precipitable Water. NSF National Center for Atmospheric Research. https://doi.org/10.5065/047C-HV45. Accessed 01 January 2026.

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