GPS performance in the quantification of integrated water vapor in Amazonian regions
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.ion.org/publications/abstract.cfm?articleID=5921 http://hdl.handle.net/11449/68031 |
Resumo: | The Amazonian regions are characterized by large space-time variability in the humidity fields due to the intense convective process in those areas associated with the great humidity potential generated by high temperatures. An experiment denominated RACCI/DRY-TO-WET (RAdiation, Cloud, and Climate Interactions in the Amazonia during the DRY-TO-WET Transition Season) was carried out in the Brazilian Amazonian Region in 2002. The IWV values from GPS and other techniques, such as radiosondes, radiometer and humidity sounding satellites were used in this experiment to supply subsidies to evaluate the aerosols influence in the associated processes modifications to seasonality of atmospheric water vapor. Those regions are one of the most humid of the planet, where IWV (Integrated Water Vapor) average values are in the order of 50 kg/m2. As according the literature the IWV quantification using GPS has not been explored in those circumstances, the objective this paper is to present the preliminary results obtained in the evaluation of the GPS performance in Amazonian Regions when comparing with other techniques. The tendency measurement values indicated that the IWV values from GPS tend to be larger than those from radiosondes and smaller than those from radiometer. On the other hand, IWV values from GPS are very close of the average values supplied by radiosondes and radiometer. Due to the great amount of atmospheric water vapor existent in this region, the results obtained in the experiment in percentile terms are quite better than those found in the literature, which are around of 10%. |
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GPS performance in the quantification of integrated water vapor in Amazonian regionsBiosensorsClimatologyCloudsEcologyGeographical regionsRadiationVaporsAmazonian regionsMeteorological modelsQuantificationWater vaporsGlobal positioning systemThe Amazonian regions are characterized by large space-time variability in the humidity fields due to the intense convective process in those areas associated with the great humidity potential generated by high temperatures. An experiment denominated RACCI/DRY-TO-WET (RAdiation, Cloud, and Climate Interactions in the Amazonia during the DRY-TO-WET Transition Season) was carried out in the Brazilian Amazonian Region in 2002. The IWV values from GPS and other techniques, such as radiosondes, radiometer and humidity sounding satellites were used in this experiment to supply subsidies to evaluate the aerosols influence in the associated processes modifications to seasonality of atmospheric water vapor. Those regions are one of the most humid of the planet, where IWV (Integrated Water Vapor) average values are in the order of 50 kg/m2. As according the literature the IWV quantification using GPS has not been explored in those circumstances, the objective this paper is to present the preliminary results obtained in the evaluation of the GPS performance in Amazonian Regions when comparing with other techniques. The tendency measurement values indicated that the IWV values from GPS tend to be larger than those from radiosondes and smaller than those from radiometer. On the other hand, IWV values from GPS are very close of the average values supplied by radiosondes and radiometer. Due to the great amount of atmospheric water vapor existent in this region, the results obtained in the experiment in percentile terms are quite better than those found in the literature, which are around of 10%.Cartographic Science Graduate Program UNESP, Presidente Prudente, SPDepartment of Cartography FCT/UNESP, Presidente Prudente, SPDepartment of Atmospheric Science IAG-USP, São Paulo, SPCPTEC-INPE, Cachoeira Paulista, SPEnvironmental Satellites and Systems Division CPTEC (Center for Weather Forecasts and Climate Studies) National Institute for Space Research - INPE, Cachoeira Paulista, Sao Paulo StateCartographic Science Graduate Program UNESP, Presidente Prudente, SPDepartment of Cartography FCT/UNESP, Presidente Prudente, SPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Instituto Nacional de Pesquisas Espaciais (INPE)Sapucci, Luiz Fernando [UNESP]Monico, João Francisco Galera [UNESP]Plana-Fattori, ArtemioMachado, Luiz Augusto ToledoLima, Wagner Flauber Araujo2014-05-27T11:21:13Z2014-05-27T11:21:13Z2004-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject2362-2369http://www.ion.org/publications/abstract.cfm?articleID=5921Proceedings of the 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004, p. 2362-2369.http://hdl.handle.net/11449/680312-s2.0-221444655507180879644760038Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004info:eu-repo/semantics/openAccess2024-06-18T15:02:47Zoai:repositorio.unesp.br:11449/68031Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:25:17.178844Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
title |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
spellingShingle |
GPS performance in the quantification of integrated water vapor in Amazonian regions Sapucci, Luiz Fernando [UNESP] Biosensors Climatology Clouds Ecology Geographical regions Radiation Vapors Amazonian regions Meteorological models Quantification Water vapors Global positioning system |
title_short |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
title_full |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
title_fullStr |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
title_full_unstemmed |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
title_sort |
GPS performance in the quantification of integrated water vapor in Amazonian regions |
author |
Sapucci, Luiz Fernando [UNESP] |
author_facet |
Sapucci, Luiz Fernando [UNESP] Monico, João Francisco Galera [UNESP] Plana-Fattori, Artemio Machado, Luiz Augusto Toledo Lima, Wagner Flauber Araujo |
author_role |
author |
author2 |
Monico, João Francisco Galera [UNESP] Plana-Fattori, Artemio Machado, Luiz Augusto Toledo Lima, Wagner Flauber Araujo |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Instituto Nacional de Pesquisas Espaciais (INPE) |
dc.contributor.author.fl_str_mv |
Sapucci, Luiz Fernando [UNESP] Monico, João Francisco Galera [UNESP] Plana-Fattori, Artemio Machado, Luiz Augusto Toledo Lima, Wagner Flauber Araujo |
dc.subject.por.fl_str_mv |
Biosensors Climatology Clouds Ecology Geographical regions Radiation Vapors Amazonian regions Meteorological models Quantification Water vapors Global positioning system |
topic |
Biosensors Climatology Clouds Ecology Geographical regions Radiation Vapors Amazonian regions Meteorological models Quantification Water vapors Global positioning system |
description |
The Amazonian regions are characterized by large space-time variability in the humidity fields due to the intense convective process in those areas associated with the great humidity potential generated by high temperatures. An experiment denominated RACCI/DRY-TO-WET (RAdiation, Cloud, and Climate Interactions in the Amazonia during the DRY-TO-WET Transition Season) was carried out in the Brazilian Amazonian Region in 2002. The IWV values from GPS and other techniques, such as radiosondes, radiometer and humidity sounding satellites were used in this experiment to supply subsidies to evaluate the aerosols influence in the associated processes modifications to seasonality of atmospheric water vapor. Those regions are one of the most humid of the planet, where IWV (Integrated Water Vapor) average values are in the order of 50 kg/m2. As according the literature the IWV quantification using GPS has not been explored in those circumstances, the objective this paper is to present the preliminary results obtained in the evaluation of the GPS performance in Amazonian Regions when comparing with other techniques. The tendency measurement values indicated that the IWV values from GPS tend to be larger than those from radiosondes and smaller than those from radiometer. On the other hand, IWV values from GPS are very close of the average values supplied by radiosondes and radiometer. Due to the great amount of atmospheric water vapor existent in this region, the results obtained in the experiment in percentile terms are quite better than those found in the literature, which are around of 10%. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12-01 2014-05-27T11:21:13Z 2014-05-27T11:21:13Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.ion.org/publications/abstract.cfm?articleID=5921 Proceedings of the 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004, p. 2362-2369. http://hdl.handle.net/11449/68031 2-s2.0-22144465550 7180879644760038 |
url |
http://www.ion.org/publications/abstract.cfm?articleID=5921 http://hdl.handle.net/11449/68031 |
identifier_str_mv |
Proceedings of the 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004, p. 2362-2369. 2-s2.0-22144465550 7180879644760038 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the 17th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2362-2369 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129519218851840 |