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An evaluation of the accuracy of models for the determination of the weighted mean temperature of the atmosphere

dc.contributor.authorPrates, Gonçalo
dc.contributor.authorMendes, V. B.pt_PT
dc.contributor.authorSantos, L.pt_PT
dc.contributor.authorLangley, R. B.pt_PT
dc.date.accessioned2009-02-13T17:09:53Z
dc.date.available2009-02-13T17:09:53Z
dc.date.issued2000
dc.description.abstractThe estimates of the zenith wet delay resulting from the analysis of data from space techniques, such as GPS and VLBI, have a strong potential in climate modeling and weather forecast applications. In order to be useful to meteorology, these estimates have to be converted to precipitable water vapor, a process that requires the knowledge of the weighted mean temperature of the atmosphere, which varies both in space and time. In recent years, several models have been proposed to predict this quantity. Using a database of mean temperature values obtained by ray-tracing radiosonde profiles of more than 100 stations covering the globe, and about 2.5 year’s worth of data, we have analyzed several of these models. Based on data from the European region, we have concluded that the models provide identical levels of precision, but different levels of accuracy. Our results indicate that regionally-optimized models do not provide superior performance compared to the global models.pt_PT
dc.formatapplication/pdfpt_PT
dc.identifier.citationProceedings of the 2000 National Technical Meeting. - USA : Institute of Navigation, 2000. - p.433-439pt_PT
dc.identifier.otherAUT: GPR01260;
dc.identifier.urihttp://hdl.handle.net/10400.1/149
dc.language.isoengpt_PT
dc.publisherUSApt_PT
dc.relation.urihttp://www.bib.ualg.pt/artigos/DocentesEST/PRAEva.pdfpt_PT
dc.rights.uriopenAccessen
dc.subjectSistemas de informação geográficapt_PT
dc.titleAn evaluation of the accuracy of models for the determination of the weighted mean temperature of the atmospherept_PT
dc.typejournal article
dspace.entity.typePublication
person.familyNamePrates
person.givenNameGonçalo
person.identifierR-001-Y1J
person.identifier.ciencia-idFC15-AE46-CE93
person.identifier.orcid0000-0001-5797-9158
person.identifier.ridK-4018-2014
person.identifier.scopus-author-id6504498720
rcaap.typearticlept_PT
relation.isAuthorOfPublication286735d2-0aa5-447a-b90f-e7d2f217d652
relation.isAuthorOfPublication.latestForDiscovery286735d2-0aa5-447a-b90f-e7d2f217d652

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