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LBA-ECO CD-04 Meteorological and Flux Data, km 83 Tower Site, Tapajos National Forest

Data Set Overview

Data setLBA-ECO CD-04 Meteorological and Flux Data, km 83 Tower Site, Tapajos National Forest
DOI10.3334/ORNLDAAC/946
Release date2009-11-10
ProjectLarge Scale Biosphere-Atmosphere
Time Period2000-07-01 to 2004-03-12

Description

Tower flux measurements of carbon dioxide,water vapor, heat, and meteorological variables were obtained at the Tapajos National Forest, km 83 site, Santarem, Para, Brazil. For the period June 29, 2000 through March 11, 2004, 30-minute averaged and calculated quantities of fluxes of momentum, heat, water vapor, and carbon dioxide, storage of carbon dioxide in the air column, are reported. Data are reported in three comma separated files: (1) 30 minute-averages, (2) the daily (24 hour) averages, and (3) the monthly (calendar) averages. The variables measured on the 67 m tower relate to meteorology, soil moisture, respiration, fluxes of momentum, heat, water vapor, and carbon dioxide, and were used to calculate storage of carbon dioxide, Net Ecosystem Exchange, and Gross Primary Productivity. Most of the variables have not been gap filled. However, CO2 flux and storage have been filled to avoid biases in Net Ecosystem Exchange; a fill index flag is included to indicate which data points were filled. Variables derived from the filled variables (respiration, NEE, GPP) are essentially filled also. Net ecosystem exchange has been filtered for calm nighttime periods.

Documentation

Data set reference document

Citation

Miller, S.D., M.L. Goulden, and H.R. da Rocha. 2009. LBA-ECO CD-04 Meteorological and Flux Data, km 83 Tower Site, Tapajos National Forest. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/946
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Project

Large Scale Biosphere-Atmosphere : The Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) is an intensive scientific investigation of the tropical rainforest of Brazil and portions of adjacent countries. Like FIFE and BOREAS, this project uses intensive remote-sensing techniques and ground-based experiments to investigate the atmosphere-biosphere-hydrosphere dynamics of this large tropical region. The LBA Project encompasses several scientific disciplines, or components. The LBA-ECO component focuses on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia?"

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Companion Files

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  • CD04_Meteorology_Fluxes.pdf

Data Files

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Data File (Granule)File SizeDates
CD04_km83_tower_fluxes_30_min.csv 16.4 MB 2000-07-01 - 2004-03-12
CD04_km83_tower_fluxes_monthly_avg.csv 20.6 KB 2000-07-01 - 2004-03-12
CD04_km83_tower_fluxes_dailyavg.csv 265.0 KB 2000-07-01 - 2004-03-12

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