TITLE:
Energy Balance in a Patch of the Atlantic Forest in São Paulo City, Brazil
AUTHORS:
Frederico Luiz Funari, Augusto José Pereira Filho
KEYWORDS:
Evaporation, Evapotranspiration, Solar Energy, Bowen Ratio
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.6 No.9,
June
26,
2014
ABSTRACT:
The aim of this work was to characterize and to bring into relationship of
the net radiation with the latent heat flux equivalent to water (mm) in a patch
of Atlantic Forest within the metropolitan area of Sao Paulo (RMSP). The
estimation of the latent heat flux (LE) was made by the energy balance equation
with the Bowen ratio. Measurements of net radiation and psychometrics gradients
were made. Soil heat flux (G) was measured by temperature sensors in two
depths. Measurements were made at Park of Science and Technology of Sao Paulo
University (CIENTEC), Sao Paulo, Brazil, between 2011 and 2013. Results
indicated that evapotranspiration varies seasonally and the amount of water
evaporated exceeds 3.0 mm·day-1 in spring/summer and in
autumn/winter the amount is approximately 1.0 mm·day-1. The
evapotranspiration is increased under RMSP urban climate conditions with higher
air temperature and lower moisture especially in summer season.