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Mapping the atmospheric water vapor by integrating microwave radiometer and GPS measurements / P. Basili in IEEE Transactions on geoscience and remote sensing, vol 42 n° 8 (August 2004)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 42 n° 8 (August 2004) . - pp 1657 - 1665 Titre : Mapping the atmospheric water vapor by integrating microwave radiometer and GPS measurements Type de document : Article/Communication Auteurs : P. Basili, Auteur ; S. Bonafoni, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 1657 - 1665 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] capteur imageur [Termes IGN] données GPS [Termes IGN] effet atmosphérique [Termes IGN] image DMSP-SSM/I [Termes IGN] image Météosat [Termes IGN] interpolation [Termes IGN] krigeage [Termes IGN] Méditerranée, mer [Termes IGN] précipitation [Termes IGN] télédétection en hyperfréquence [Termes IGN] vapeur d'eau Résumé : (Auteur) This paper deals with a procedure to generate maps of the Integrated Precipitable Water Vapor (IPWV) over the Mediterranean area by using estimates from a global positioning system (GPS) network over land and from the Special Sensor Microwave/Imager (SSM/I) over sea. In particular, we investigate the application of the Kriging geostatistical technique to obtain regularly spaced IPWV values. The horizontal spatial structure r water vapor retrieved by SSM/I is explored by computing-variograms that provide a measure of dissimilarity between pairs IPWV values for the region of interest. Because the water vapor density decreases with height, the GPS station elevation - accounted for in the interpolation procedure. In this respect, the potential of the Kriging with external drift relative to the linary Kriging is evaluated by applying a test based on the validation approach.The case studies are presented and qualitatively compared to the corresponding Meteosat infrared images. A quantitative comparison with an independent source of information, such as IPWV computed from radiosonde observations and from European Centre for Medium-Range Weather Forecasts only, is also performed. Numéro de notice : A2004-388 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2004.830943 En ligne : https://doi.org/10.1109/TGRS.2004.830943 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26915 [article]

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