Assimilation of angle of arrival measurements from an antenna of GPS receivers in the WRF model

F. Vandenberghe, Clayton Kerce, Robert Bock

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

By tracking a GPS satellite with an antenna of receivers, it is possible to estimate the difference between the satellite elevation angle and the actual arrival angle of the transmitted signal in the line of sight of the antenna. Those measurements are assimilated through the use of a fast ray-tracing observation operator and its adjoint into a high resolution version of the Weather Research and Forecast model. Such assimilation has the potential to improve the description and prediction of the local refractivity field, through improved pressure, temperature and humidity, around the antenna.

Original languageEnglish
Title of host publicationAssimilation of Remote Sensing and In Situ Data in Modern Numerical Weather and Environmental Prediction Models
DOIs
StatePublished - 2007
EventAssimilation of Remote Sensing and In Situ Data in Modern Numerical Weather and Environmental Prediction Models - San Diego, CA, United States
Duration: Aug 26 2007Aug 27 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6685
ISSN (Print)0277-786X

Conference

ConferenceAssimilation of Remote Sensing and In Situ Data in Modern Numerical Weather and Environmental Prediction Models
Country/TerritoryUnited States
CitySan Diego, CA
Period08/26/0708/27/07

Keywords

  • Angle of arrival
  • GPS
  • Raytracing
  • Variational assimilation

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