Comparison of GPS slant wet delay measurements with model simulations during the passage of a squall line

Slant wet delay (SWD) measurements from a ground-based GPS observation network provide accurate, high-resolution moisture information for mesoscale analysis. In this study, we compared SWD simulated from a 9-km MM5 model in a prefrontal squall line event against actual GPS SWD observations by NOAA's GPS network. We found that the model simulation did not capture abrupt moisture changes and small-scale variations observed in the nonisotropic component of slant wet delays associated with the squall line. This result suggests that SWD measurements can be very useful in improving model moisture analysis.

To Access Resource:

Questions? Email Resource Support Contact:

  • opensky@ucar.edu
    UCAR/NCAR - Library

Resource Type publication
Temporal Range Begin N/A
Temporal Range End N/A
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 N/A
Additional Information N/A
Resource Format PDF
Standardized Resource Format PDF
Asset Size N/A
Legal Constraints

An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union.
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email opensky@ucar.edu
Resource Support Organization UCAR/NCAR - Library
Distributor N/A
Metadata Contact Name N/A
Metadata Contact Email opensky@ucar.edu
Metadata Contact Organization UCAR/NCAR - Library

Author Ha, So-Young
Kuo, Ying-Hwa
Guo, Yong-Run
Rocken, Chris
Van Hove, Teresa
Publisher UCAR/NCAR - Library
Publication Date 2002-12-10T00:00:00
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier N/A
Resource Version N/A
Topic Category geoscientificInformation
Progress N/A
Metadata Date 2023-08-18T19:04:48.689066
Metadata Record Identifier edu.ucar.opensky::articles:17300
Metadata Language eng; USA
Suggested Citation Ha, So-Young, Kuo, Ying-Hwa, Guo, Yong-Run, Rocken, Chris, Van Hove, Teresa. (2002). Comparison of GPS slant wet delay measurements with model simulations during the passage of a squall line. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7f47qfq. Accessed 08 November 2024.

Harvest Source