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CD03_PASTURE_FLUX LBA-ECO CD-03 Flux-Meteorological Data, km 77 Pasture Site, Para, Brazil: 2000-2005 FITZJARRALD, D.R.; SAKAI, R.K. LBA-ECO CD-03 Flux-Meteorological Data, km 77 Pasture Site, Para, Brazil: 2000-2005 2010 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/962 962

ABSTRACT: Eddy correlation and micrometeorological measurements began in 2001 and continued through 2005 at the pasture site at km 77 on BR-163 just south of the city of Santarem, Para, Brazil. Measurements included turbulent fluxes (momentum, heat, water vapor, and CO2) using the eddy covariance (EC) approach. Other measurements included the CO2 profile, air temperature, humidity, wind speed profile, downward and upward solar and terrestrial radiation, downward and upward photosynthetically active radiation (PAR), atmospheric pressure, rainfall, soil temperature, soil moisture, and soil heat flux. Data are presented in 5 comma-separated ASCII value (csv) files each corresponding roughly to one calendar year. At the beginning of the measurements, in September 2000, the field was a pasture. In November 2001, the pasture was burned, plowed, and planted in upland (non-irrigated) rice. Land use practices during the study period were recorded and are included in a table in Section 5 of this guide. The EC system was composed of a 3D sonic anemometer (ATI 3D) and an infrared analyzer (LICOR 6262) installed on a 20m tower in the agricultural field. The methodology to calculate the flux is described in detail in Sakai et al. (2004) and a companion file is included that describes in detail the formulae used to calculate the eddy flux variables (CD03_Pasture_Flux_Calculations.pdf).

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Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE ATMOSPHERE ATMOSPHERIC PRESSURE EARTH SCIENCE ATMOSPHERE ATMOSPHERIC RADIATION INCOMING SOLAR RADIATION EARTH SCIENCE ATMOSPHERE ATMOSPHERIC TEMPERATURE SURFACE TEMPERATURE EARTH SCIENCE ATMOSPHERE ATMOSPHERIC WATER VAPOR HUMIDITY EARTH SCIENCE ATMOSPHERE ATMOSPHERIC WINDS SURFACE WINDS EARTH SCIENCE ATMOSPHERE PRECIPITATION PRECIPITATION AMOUNT EARTH SCIENCE LAND SURFACE SOILS SOIL MOISTURE/WATER CONTENT EARTH SCIENCE LAND SURFACE SOILS SOIL TEMPERATURE HUMIDITY DAILY DATA WIND SPEED HOURLY DATA AIR PRESSURE PASTURE SITE PRECIPITATION SANTAREM (PA) TURBULENT FLUX WIND DIRECTION AIR TEMPERATURE SOLAR RADIATION EDDY CORRELATION SOIL TEMPERATURE SOIL WATER CONTENT GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=962 VIEW RELATED INFORMATION https://daac.ornl.gov//LBA/guides/CD03_Pasture_Flux.html LBA-ECO CD-03 Flux-Meteorological Data, km 77 Pasture Site, Para, Brazil: 2000-2005 USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0