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Reference TypeConference Proceedings
Identifier6qtX3pFwXQZ3r59YD6/GPA47
Repositorysid.inpe.br/iris@1912/2005/07.21.00.18.29   (restricted access)
Metadatasid.inpe.br/iris@1912/2005/07.21.00.18.31
Sitemtc-m12.sid.inpe.br
Label9497
Secondary KeyINPE-8520-PRE/8520
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Citation KeyStechBaptLore:2000:AnVeSu
Author1 Stech, Jose Luiz
2 Baptista, Marlos C.
3 Lorenzzetti, João Antonio
Group1 DSR-INPE-MCT-BR
2
3 DSR-INPE-MCT-BR
TitleAnálise do vento de superfície sobre o Oceano Atlântico (20§n à 40§s)usando dados do escaterômetro do satélite ERS
Conference NameSELPER.
Year2000
DateSimposio Latinoamericano de Percepcion Remota, 9
Conference LocationPuerto Iguazú, AR
KeywordsOCEANOGRAFIA, interação água e ar, dinâmica do oceano, conversão de energia termal oceânica, air water interactions, ocean dynamics, ocean thermal energy conversion.
AbstractEste trabalho estuda a variabilidade temporal e espacial do campo de vento para o Oceano Atlântico, setor 20§N à 40§S, a partir dos dados do escaterômetro dos satélites ERS 1/2. A base de dados utilizada foi obtida junto ao IFREMER, para o período de dezembro de 1991 a novembro de 1998. Blocos de dados do escaterômetro, correspondentes a três dias, foram usados para a interpolação em uma grade geográfica regular de 1§ x 1§. Uma interpolação espacial, envolvendo um processo iterativo com correção de valores médios de erros ponderados, foi utilizada. A avaliação deste algoritmo foi feita comparando o resultado com ventos medidos pelas bóias do projeto PIRATA e os dados de ventos de reanálises do NCEP. As diferenças RMS da intensidade do vento da bóia menos escaterômetro (P-S)e bóia menos NCEP (P-N)foram: posição 0-35 o W (P-S=1.13 m/s; P-N=1.11 m/s); posição 10o S-10o W (P-S=0.72 m/s; P-N=1.83 m/s)e posição 15 o N-38 o W (P-S=0.99 m/s). Os resultados dos campos de vento descrevem as principais feições dos ventos alísios de Sudeste e Nordeste. A ITCZ e o centro de alta pressão semi-permanente nos sub-trópicos são claramente detectados nos campos médios. ABSTRACT: In this paper it is studied the temporal and spatial variability in the wind field for the Atlantic Ocean, sector from 20o N to 40o S from the ERS 1/2 scatterometer data. The data was obtained from IFREMER and covers the period from December 1991 to November 1998. Three day blocks of scatterometer data were used for the interpolation into a regular 1 o x1 o geographic grid. A spatial interpolation that uses an iteration procedure with a correction of mean value of weighted errors was implemented. An evaluation of this algorithm was done comparing the interpolated results with winds measured by the buoys of the PIRATA project array and the wind data from the NCEP reanalysis. The rms differences of buoy-scatterometer (P-S)and buoy-NCEP (P-N)wind magnitudes for 1998 were: position 0-35o W (P-S=1.13 ms -1 ; P-N=1.11 ms -1 ); position 10o S-10o W (P-S=0.72 ms -1 ; P-N=1.83 ms -1 ) and position 15o N-38o W (P-S=0.99 ms -1 ). The resulting wind fields describe the main features of Southeast and Northeast trades, with the ITCZ and semi-permanent high pressure system in the subtropics clearly detected.
Secondary TypePRE CI
AreaSRE
Size7032 KiB
Number of Files1
Target FileINPE 8520.pdf
Last Update2016:03.15.12.11.15 sid.inpe.br/banon/2001/04.06.10.52 marciana
Metadata Last Update2018:06.05.00.40.21 sid.inpe.br/banon/2001/04.06.10.52 administrator {D 2000}
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Content TypeExternal Contribution
Document Stagenot transferred
Read Permissiondeny from all and allow from 150.163
Next Higher Units8JMKD3MGPCW/3ER446E
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History2005-07-21 00:18:32 :: administrator -> jefferson ::
2006-05-19 16:49:00 :: jefferson -> administrator ::
2008-06-09 22:14:44 :: administrator -> jefferson ::
2010-07-07 19:05:40 :: jefferson -> administrator ::
2015-04-24 14:28:34 :: administrator -> marciana :: 2000
2016-03-15 12:11:15 :: marciana -> administrator :: 2000
2018-06-05 00:40:21 :: administrator -> jefferson :: 2000
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Access Date2020, July 13
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