1999
DOI: 10.1590/s0102-261x1999000100009
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Balanço de radiação em três ecossistemas da floresta amazônica: campina, campinarana e mata densa

Abstract: Este trabalho apresenta um estudo sobre o impacto dos perfis verticais de temperatura e de umidade. estimados a partir de radiâncias obtidas pelo TIROS Operational Vertical Sounder (TOVS), nos resultados gerados por um modelo diagnóstico de análise sinóptica sobre a região Sul e Sudeste do Brasil. O processamento das radiâncias do TOVS, sondador que opera a bordo dos satélites meteorológicos de órbita polar da série TIROS-N/NOAA, foi feito utilizando o International TOVS Processing Package-4 (ITPP-4), análises… Show more

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Cited by 5 publications
(8 citation statements)
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“…The models that obtained the best results, with lowest RMSE, MAE, and PMRE, for the hourly mean, were the Brunt (1932), Idso (1982), Prata (1996), Berdahl and Martin (1984), Efimosa 1961), Berger et al (1984) and Angstrom (1918).…”
Section: Resultsmentioning
confidence: 99%
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“…The models that obtained the best results, with lowest RMSE, MAE, and PMRE, for the hourly mean, were the Brunt (1932), Idso (1982), Prata (1996), Berdahl and Martin (1984), Efimosa 1961), Berger et al (1984) and Angstrom (1918).…”
Section: Resultsmentioning
confidence: 99%
“…The table 4 shows the comparative statistics for the calculations with daily mean for the evaluation of the models. The equations nearest to the real conditions of longwave irradiance measured were Brutsaert (1975), Brunt (1932), Idso (1982), Prata (1996, Berdahl and Martin (1984), Berger et al (1984) and Lommer et al (2007). Swinbank (1963) and Zillman (1972), respectively presented the results with the highest RMSE, MAE and PMRE.…”
Section: Resultsmentioning
confidence: 99%
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“…Januário, Viswanadham e Senna (1992) encontraram em uma floresta tropical úmida na Amazônia, transmitância da radiação de 4,7%. Já estudos realizados por Leitão (1994) e Senna, Costa e Shimabukuro (2005) apresentaram valor de T par de 1,3 % e 3%, respectivamente. Esse comportamento diferenciado é explicado, pela ocorrência ou não, de clareiras, que modificam significativamente o regime da PAR no interior da floresta (SANSEVERO;PIRES;PEZZOPANE, 2006).…”
Section: Resultsunclassified
“…The surface net radiation (Rn), represented by the sum of the radiation fluxes incident and reflected/emitted by the surface vegetation was obtained as (Leitão, 1994):…”
Section: Methodsmentioning
confidence: 99%