%0 Journal Article
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%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@archivingpolicy denypublisher denyfinaldraft
%@issn 0035-9009
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%@resumeid 8JMKD3MGP5W/3C9JGQ7
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%3 Wright_Dry seasone.PDF
%B Quarterly Journal of the Royal Meteorological Society
%@dissemination WEBSCI
%@secondarykey INPE-11388-PRE/6825
%A Wright, I. R.,
%A Gash, J. H. C.,
%A Darocha, H, R,
%A Shuttleworth, W. J.,
%A Nobre, Carlos Afonso,
%A Maitelli, G. T.,
%A Zamparoni, C. A. G. P.,
%A Carvalho, P. R. A.,
%T Dry season micrometeorology  of central Amazonian ranchland.
%8 Oct.
%D 1992
%V 118
%N 508
%P 1083-1099
%2 cptec.inpe.br/walmeida/2004/04.02.15.04.31
%4 cptec.inpe.br/walmeida/2004/04.02.15.04
%K Rain-forest, deforestation, evaporation,momentum,balance.
%X This paper presents the first comprehensive micrometeorological measurements to be recorded over post-deforestation Amazonian ranchland. The ranch was managed for the production of beef cattle and had been created by felling and burning the original rainforest 12 years previously. The measurements allow derivation of the aerodynamic roughness, and a description of the response of the energy balance and surface conductance to the progressing dry season. Zero-plane displacement and roughness length were derived from wind-speed profiles as 0.17 +/- 0.03 m and 0.026 +/- 0.003 m respectively, while measurement of energy partition was achieved, with excellent agreement, between three independent measurement systems. During the 1990 dry season, average evaporation diminished from 3.8 to 2.1 mm d-1 as the Bowen ratio increased from 0.43 to 0.67. Values of surface conductance were derived and these compare well with expected trends.
%@language English
%@copyholder SID/SCD
%@e-mailaddress deicy@cptec.inpe.br
%@secondarytype PRE PI
%@area MET
%@group CG-INPE-MCT-BR
%@affiliation INST NACL PESQUISAS ESPACIAIS,S JOSE CAMPOS,BRAZIL,