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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
20/12/2017 |
Data da última atualização: |
22/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CHOR, T. L.; DIAS, N. L.; ARAUJO, A. C. de; WOLFF, S.; ZAHN, E.; MANZI, A.; TREBS, I.; SÁ, M. O.; TEIXEIRA, P. R.; SÖRGEL, M. |
Afiliação: |
Tomás L. Chor, UFPR / University of California; Nelson L. Dias, UFPR; ALESSANDRO CARIOCA DE ARAUJO, CPATU; Stefan Wolff, Max Planck Institute for Chemistry; Einara Zahn, UFPR; Antônio Manzi, INPE; Ivonne Trebs, Environmental Research and Innovation (ERIN); Marta O. Sá, INPA; Paulo R. Teixeira, INPA; Matthias Sörgel, Max Planck Institute for Chemistry. |
Título: |
Flux-variance and flux-gradient relationships in the roughnesssublayer over the Amazon forest. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 239, p. 213-222, May 2017. |
Idioma: |
Inglês |
Conteúdo: |
The failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previously measured fluxes in the literature for the Amazonforest. MenosThe failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previous... Mostrar Tudo |
Palavras-Chave: |
Subcamada de rugosidade. |
Thesagro: |
Floresta. |
Thesaurus Nal: |
Amazonia. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
Marc: |
LEADER 02303naa a2200265 a 4500 001 2083084 005 2021-12-22 008 2017 bl uuuu u00u1 u #d 100 1 $aCHOR, T. L. 245 $aFlux-variance and flux-gradient relationships in the roughnesssublayer over the Amazon forest.$h[electronic resource] 260 $c2017 520 $aThe failure of the Monin?Obukhov Similarity Theory (MOST) in the roughness sublayer is a major prob-lem for the estimation of fluxes over tall forests, whenever indirect methods that rely on MOST, suchas flux-gradient or the variance method, are involved. While much research focuses on micrometeoro-logical measurements over temperate-climate forests, very few studies deal with such measurementsover tropical forests. In this paper, we show evidence that some similarity functions over the Amazonforest are somewhat different from temperate forests. Comparison of the nondimensional scalar gradi-ents canonical values for the inertial sublayer with our measurements in the roughness sublayer showedsmaller deviations than what is usually reported for temperate forests. Although the fluxes of watervapor and CO2derived from mean profiles show considerable scatter when compared with the eddycovariance measurements, using calibrated dimensionless gradients it is possible to estimate their meandaily cycle during the period of measurement (36 days in May and June, transition between rainy anddry season). Moreover, since mean ozone profiles were available, although without the correspondingeddy covariance measurements, mean daily ozone fluxes were calculated with the flux-gradient method,yielding a nighttime value of −0.05 and a daily peak of −0.45μgm−2s−1 (−1.04 and −9.37nmolm−2s−1, respectively). These values are comparable to previously measured fluxes in the literature for the Amazonforest. 650 $aAmazonia 650 $aFloresta 653 $aSubcamada de rugosidade 700 1 $aDIAS, N. L. 700 1 $aARAUJO, A. C. de 700 1 $aWOLFF, S. 700 1 $aZAHN, E. 700 1 $aMANZI, A. 700 1 $aTREBS, I. 700 1 $aSÁ, M. O. 700 1 $aTEIXEIRA, P. R. 700 1 $aSÖRGEL, M. 773 $tAgricultural and Forest Meteorology$gv. 239, p. 213-222, May 2017.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
19/12/2011 |
Data da última atualização: |
30/06/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
GROMBONI, J. G. G.; MELLO, S. S. de; ROCHA, M. I. P.; IBELLI, A. M.; VENERONI, G. B.; NICIURA, S. C. M. |
Afiliação: |
JULIANA GRACIELLE GONZAGA GROMBONI, GRAD. UNICEP/SÃOCARLOS, SP; SUELEN SCARPA DE MELLO, UFSCaR/SÃO CARLOS, SP; MARINA IBELLI PEREIRA ROCHA, MESTRADO UFSCar/SÃO CARLOS, SP; ADRIANA MÉRCIA IBELLI, PÓS-DOUTORADO UFSCar/SÃO CARLOS, SP; GISELE BATISTA VENERONI, PÓS-DOUTORADO UFSCar/SÃO CARLOS, SP; SIMONE CRISTINA MEO NICIURA, CPPSE. |
Título: |
Expressão relativa dos genes CAPN1, CAST, DGAT e leptina relacionados à maciez de carne e à deposição de gordura em bovinos. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 3., 2011, São Carlos. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação, 2011 |
Idioma: |
Português |
Thesagro: |
Bovino; Carne. |
Thesaurus NAL: |
genes. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/50831/1/PROCI-2011.00267.pdf
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Marc: |
LEADER 00719nam a2200193 a 4500 001 1910291 005 2023-06-30 008 2011 bl uuuu u00u1 u #d 100 1 $aGROMBONI, J. G. G. 245 $aExpressão relativa dos genes CAPN1, CAST, DGAT e leptina relacionados à maciez de carne e à deposição de gordura em bovinos.$h[electronic resource] 260 $aIn: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 3., 2011, São Carlos. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação$c2011 650 $agenes 650 $aBovino 650 $aCarne 700 1 $aMELLO, S. S. de 700 1 $aROCHA, M. I. P. 700 1 $aIBELLI, A. M. 700 1 $aVENERONI, G. B. 700 1 $aNICIURA, S. C. M.
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