Micrometeorological measurements in Amazon forest during GTE/ABLE 2A mission

Journal Article · Mon Aug 20 04:00:00 EDT 1990 · Journal of Geophysical Research; (USA)

DOI:https://doi.org/10.1029/JD095iD09p13669· OSTI ID:5938180

Viswanadham, Y; Molion, L C.B.; Manzi, A O; Sa, L D.A.; Silva Filho, V P; Nogueira, J L.M.; dos Santos, R C ^[1]; Andre, R G.B. ^[2]

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1. Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil)
2. Universidade Estadual Paulista, Jaboticabal (Brazil)

As part of the Global Tropospheric Experiment/Amazon Boundary Layer Experiment 2A, micrometeorological measurements were made using a 45 m scaffolding tower located in the Ducke Reserve Forest site (2{degree}57{prime}S, 59{degree}57{prime}W) 26 km northeaster of Manaus, Amazonas, Brazil. The authors report the daily variation within and above the forest of several meteorological parameters such as temperature, humidity, winds, radiation exchange, and energy partition into latent and sensible heat fluxes. Estimates of eddy diffusivity coefficients for momentum, heat, and water vapor were made using the observed profiles. These results provide information on the physical processes involved in the exchange of momentum, heat, and water vapor between the forest and the air layer above. To account for the anomalies in eddy diffusivities, a brief discussion is presented based on turbulent transport processes.

• OSTI ID: 5938180
• Journal Information: Journal of Geophysical Research; (USA), Journal Name: Journal of Geophysical Research; (USA) Vol. 95:D9; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540110*
AIR
AMAZON RIVER
ATMOSPHERIC CHEMISTRY
BOUNDARY LAYERS
BRAZIL
CANOPIES
CHEMISTRY
DAILY VARIATIONS
DEVELOPING COUNTRIES
DIFFUSION
EARTH ATMOSPHERE
ENERGY TRANSFER
FLUID FLOW
FLUIDS
FORESTS
GASES
HEAT FLUX
HEAT TRANSFER
HUMIDITY
LATIN AMERICA
LAYERS
MASS TRANSFER
METEOROLOGY
MOMENTUM TRANSFER
RIVERS
SOUTH AMERICA
STREAMS
SURFACE WATERS
TEMPERATURE MEASUREMENT
TROPOSPHERE
TURBULENT FLOW
VAPORS
VARIATIONS
WATER VAPOR
WIND