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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
31/03/2009 |
Data da última atualização: |
22/11/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FITZJARRALD, D. R.; SAKAI, K. R.; MORAES, O. L. L.; OLIVEIRA JUNIOR, R. C. de; ACEVEDO, O. C.; CZIKOWSKY, M. J.; BELDINI, T. |
Afiliação: |
David R. Fitzjarrald, Atmospheric Sciences Research Center State University of New York at Albany Albany New York USA; Ricardo K. Sakai, Atmospheric Sciences Research Center State University of New York at Albany, Albany, New York; Osvaldo L. L. Moraes, Departamento de Física Universidade Federal de Santa Maria; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Otávio C. Acevedo, Departamento de Física Universidade Federal de Santa Maria, Santa Maria; Matthew J. Czikowsky, Atmospheric Sciences Research Center State University of New York at Albany, Albany, New York; Troy Beldini, Projeto LBA Escritório e Laboratório de Apoio em Santarém, Santarém. |
Título: |
Spatial and temporal rainfall variability near the Amazon-Tapajós confluence. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Journal of Geophysical Research: Biogeosciences, v. 113, n. G1, 2008. |
Páginas: |
p. 1-17. |
DOI: |
10.1029/2007JG000596 |
Idioma: |
Inglês |
Conteúdo: |
Do the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós breeze extend only a few kilometers inland. Rainfall increases to the north of the Amazon, possibly the result of uplift over elevated terrain. Dry season rainfall increases by up to 30% going away from the Amazon River, as would be expected given breeze-induced subsidence over the river. MenosDo the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós bre... Mostrar Tudo |
Palavras-Chave: |
Brasil; Tapajós. |
Thesagro: |
Águas Interiores; Bacia Hidrográfica; Balanço Hídrico; Clima; Evaporação; Precipitação Pluvial; Temperatura. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02748naa a2200337 a 4500 001 1410232 005 2022-11-22 008 2008 bl uuuu u00u1 u #d 024 7 $a10.1029/2007JG000596$2DOI 100 1 $aFITZJARRALD, D. R. 245 $aSpatial and temporal rainfall variability near the Amazon-Tapajós confluence.$h[electronic resource] 260 $c2008 300 $ap. 1-17. 520 $aDo the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós breeze extend only a few kilometers inland. Rainfall increases to the north of the Amazon, possibly the result of uplift over elevated terrain. Dry season rainfall increases by up to 30% going away from the Amazon River, as would be expected given breeze-induced subsidence over the river. 650 $aAmazonia 650 $aÁguas Interiores 650 $aBacia Hidrográfica 650 $aBalanço Hídrico 650 $aClima 650 $aEvaporação 650 $aPrecipitação Pluvial 650 $aTemperatura 653 $aBrasil 653 $aTapajós 700 1 $aSAKAI, K. R. 700 1 $aMORAES, O. L. L. 700 1 $aOLIVEIRA JUNIOR, R. C. de 700 1 $aACEVEDO, O. C. 700 1 $aCZIKOWSKY, M. J. 700 1 $aBELDINI, T. 773 $tJournal of Geophysical Research: Biogeosciences$gv. 113, n. G1, 2008.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
27/03/2015 |
Data da última atualização: |
23/02/2016 |
Autoria: |
NASCIMENTO FILHO, E. C. do; SANTOS, J. C. da S.; BORGES, A. L. |
Afiliação: |
EDSON CARVALHO DO NASCIMENTO FILHO, UFRB; JEAN CLEBER DA SILVA SANTOS, UFRB; ANA LUCIA BORGES, CNPMF. |
Título: |
Distribuição de fitomassa seca em variedades de bananeiras cultivadas em sistema orgânico. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro: [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014. |
Idioma: |
Português |
Palavras-Chave: |
Prganic production. |
Thesagro: |
Agricultura orgânica; Banana; Produção orgânica. |
Thesaurus NAL: |
Musa. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139917/1/118-14.pdf
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Marc: |
LEADER 00783naa a2200193 a 4500 001 2012243 005 2016-02-23 008 2014 bl uuuu u00u1 u #d 100 1 $aNASCIMENTO FILHO, E. C. do 245 $aDistribuição de fitomassa seca em variedades de bananeiras cultivadas em sistema orgânico.$h[electronic resource] 260 $c2014 650 $aMusa 650 $aAgricultura orgânica 650 $aBanana 650 $aProdução orgânica 653 $aPrganic production 700 1 $aSANTOS, J. C. da S. 700 1 $aBORGES, A. L. 773 $tIn: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 8., 2014, Cruz das Almas, Ba. Pesquisa: despertando mentes para a inovação e transformando o futuro: [anais]. Cruz das Almas, BA, Embrapa Mandioca e Fruticultura, 2014.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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