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

Autor:	Robert Bock, Clayton Kerce, F. Vandenberghe
Rok vydání:	2007
Předmět:	Line-of-sight business.industry Data assimilation Angle of arrival Weather Research and Forecasting Model Assisted GPS Global Positioning System Environmental science Satellite business Physics::Atmospheric and Oceanic Physics Atmospheric optics Computer Science::Information Theory Remote sensing
Zdroj:	Assimilation of Remote Sensing and In Situ Data in Modern Numerical Weather and Environmental Prediction Models.
ISSN:	0277-786X
DOI:	10.1117/12.740690
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::98aef7d25b21979bfd8dea33e258403a https://doi.org/10.1117/12.740690 Zobrazit plný text záznamu