Data/hora: 02/06/2024 14:59:57

Biblioteca(s): | Embrapa Agricultura Digital; Embrapa Unidades Centrais.
Data corrente: | 19/02/2010
Data da última atualização: | 22/06/2018
Autoria: | SANTOS, C. A. C. dos; SILVA, B. B. da; RAO, T. V. R.; NEALE, C. M. U.
Afiliação: | Carlos Antonio Costa dos Santos, Instituto Nacional de Pesquisas da Amazônia; Bernardo Barbosa da Silva, Universidade Federal de Campina Grande, Unidade Acadêmica de Ciências Atmosféricas; Tantravahi Venkata Ramana Rao, Universidade Federal de Campina Grande, Unidade Acadêmica de Ciências Atmosféricas; Christopher Michael Usher Neale, Utah State University, Biological and Irrigation Engineering Department.
Título: | Energy balance measurements over a banana orchard in the Semiarid region in the Northeast of Brazil.
Ano de publicação: | 2009
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 11, p. 1365-1373, nov. 2009.
Idioma: | Inglês
Notas: | Título em português: Medidas do balanço de energia sobre pomar de bananeira na região Semiárida do Nordeste do Brasil.
Conteúdo: | The objective of this work was to evaluate the reliability of eddy covariance measurements, analyzing the energy balance components, evapotranspiration and energy balance closure in dry and wet growing seasons, in a banana orchard. The experiment was carried out at a farm located within the irrigation district of Quixeré, in the Lower Jaguaribe basin, in Ceará state, Brazil. An eddy covariance system was used to measure the turbulent flux. An automatic weather station was installed in a grass field to obtain the reference evapotranspiration (ET0) from the combined FAO-Penman-Monteith method. Wind speed and vapor pressure deficit are the most important variables on the evaporative process in both growing seasons. In the dry season, the heat fluxes have a similar order of magnitude, and during the wet season the latent heat flux is the largest. The eddy covariance system had acceptable reliability in measuring heat flux, with actual evapotranspiration results comparing well with those obtained by using the water balance method. The energy balance closure had good results for the study area, with mean values of 0.93 and 0.86 for the dry and wet growing seasons respectively.
Palavras-Chave: | Calor latente; Calor sensível; Correlações turbulentas; Eddy cavariance; Estação chuvosa; Estação seca; Latent heat flux; Sensible heat flux; Técnica das correlações turbulentas.
Thesaurus Nal: | Dry season; Eddy covariance; Musa; Wet season.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/38149/1/44n11a01.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)

Exemplares:

CNPTIA - (14621-1) - EMB - AP - PP -  -  -  - DIS
AI-SEDE - (47276-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS