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Eddy correlation measurements of energy partition for Amazonian forest
Author(s) -
Shuttleworth W. James,
Gash John H. C.,
Lloyd Colin R.,
Moore Christopher J.,
Roberts John,
Filho Ari De O. Marques,
Fisch Gilberto,
De Paula Silva Filho Vicente,
Ribeiro Maria De Nazaré Góes,
Molion Luiz C. B.,
De Abreu Sá Leonardo D.,
Nobre J. Carlos A.,
Cabral Osvaldo M. R.,
Patel Sukaran R.,
Carvalho De Moraes J.
Publication year - 1984
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49711046622
Subject(s) - amazonian , eddy covariance , environmental science , evaporation , canopy , available energy , bowen ratio , atmospheric sciences , tree canopy , meteorology , amazon rainforest , hydrology (agriculture) , energy (signal processing) , latent heat , geography , physics , geology , mathematics , statistics , ecosystem , ecology , geotechnical engineering , archaeology , biology
Measurements of energy partition for Amazonian forest made with novel eddy correlation equipment are presented for eight dry days in September 1983. These are interpreted to provide estimates of the aerodynamic and surface resistance for this vegetation type. Daily total evaporation for a transpiring canopy accounts for 70% of the available radiant energy, and is two thirds of conventional estimates of potential evaporation. The results are used to provide an initial calibration of a simple, physically based model of daily evaporation for Amazonian rain forest.