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Adv. Geosci., 2, 73-79, 2005
https://doi.org/10.5194/adgeo-2-73-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
 
29 Mar 2005
Impact of a high density GPS network on the operational forecast
C. Faccani1, R. Ferretti1,2, R. Pacione3, T. Paolucci1, F. Vespe4, and L. Cucurull5 1Department of Physics, University of L’Aquila, Italy
2CETEMPS, University of L’Aquila, Italy
3Telespazio SpA, Centro di Geodesia Spaziale, Matera, Italy
4ASI, Centro di Geodesia Spaziale, Matera, Italy
5COSMIC Project/JCSDA Suitland, MD, USA
Abstract. Global Positioning System Zenith Total Delay (GPS ZTD) can provide information about the water vapour in atmosphere. Its assimilation into the analysis used to initialize a model can then improve the weather forecast, giving the right amount of moisture and reducing the model spinup. In the last year, an high density GPS network has been created on the Basilicata region (south of Italy) by the Italian Space Agency in the framework of a national project named MAGIC2. MAGIC2 is the Italian follow on of the EC project MAGIC has. Daily operational data assimilation experiments are performed since December 2003. The results show that the assimilation of GPS ZTD improves the forecast especially during the transition from winter to spring even if a no very high model resolution (9km) is used.

Citation: Faccani, C., Ferretti, R., Pacione, R., Paolucci, T., Vespe, F., and Cucurull, L.: Impact of a high density GPS network on the operational forecast, Adv. Geosci., 2, 73-79, https://doi.org/10.5194/adgeo-2-73-2005, 2005.
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