Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/6826
Experiments with assimilation of ZTD GPS data
Title: Experiments with assimilation of ZTD GPS data
Authors: Sánchez Arriola, Jana ORCID RESEARCHERID SCOPUSID Autor AEMETNavascués, BeatrizAutor AEMETGarcía-Moya, José AntonioAutor AEMET
Keywords: HIRLAM assimilation systems; Global positioning system; Atmospheric water vapour; Prediction models; Weather forecast; Zenith total delay
Issue Date: 2004
Citation: HIRLAM All-Staff Meeting (2004)
Abstract: Preliminary assimilation experiments have been performed at INM to find the impact of GPS Zenith Total Delay data with the HIRLAM 3DVar system. The two alternative background constraint formulations available in HIRLAM, namely analytical and statistical, have been tested. They have been done with emphasis in the diagnostic of the performance of the assimilation cycle using this new type of observations, as in the verification of the model forecasts. These experiments have shown an impact of the assimilation of GPS data and the background constraint approach, both on precipitation and model humidity .
Description: Ponencia presentada en: HIRLAM All-Staff Meeting 2004 celebrado en Madrid, del 1 al 3 de marzo de 2004, en el Instituto Nacional de Meteoroogía
URI: http://hdl.handle.net/20.500.11765/6826
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