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LBA-ECO ND-01 Reflectance and Biophysical Measures, Grass Pastures: Rondonia, Brazil

Data Set Overview

Data setLBA-ECO ND-01 Reflectance and Biophysical Measures, Grass Pastures: Rondonia, Brazil
DOI10.3334/ORNLDAAC/1154
Release date2013-04-11
ProjectLarge Scale Biosphere-Atmosphere
Time Period2003-07-19

Description

This data set provides the results of spectral reflectance (350 to 2,500 nm at 1-nm increments) and biophysical measurements on grass pastures in eight cattle ranches in the state of Rondonia, located in the southwestern Brazilian Amazon. The ranches are located near the cities of Porto Velho, Ariquemes, Ouro Preto, Ji-Parana, and Presidente Medici. Field measurements were collected in July and August 2003. The primary grass species sampled were Brachiaria brizantha and Brachiaria decumbens. Spectrometer measurements were taken at 5-m intervals along 100 m transects on the pastures - fourteen total transects. Vegetation was sampled at 20-m intervals along the transects. All standing biomass and litter on the soil surface were collected and separated into live and senesced biomass and then dried to calculate water content. Sixty-eight reflectance spectra coincided with grass biophysical samples. Note that the research was done on private lands in Rondonia, and to protect the privacy of those land owners no geographic information is associated with the reported measurements. Three data files are included: an ENVI spectral library file with reflectance data for 484 pasture sampling points, an ASCII comma-separated file with reflectance data for the 484 pasture sampling points, and an ASCII comma-separated file with the biophysical measurements.

Documentation

Data set reference document

Citation

Numata, I., D.A. Roberts, O.A. Chadwick, J.P. Schimel, L.S. Galvao, and J.V. Soares. 2013. LBA-ECO ND-01 Reflectance and Biophysical Measures, Grass Pastures: Rondonia, Brazil. ORNL DAAC, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1154
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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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  • ND01_Pasture_Spectra.pdf

Data Files

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Data File (Granule)File SizeDates
Pasture_Rondonia_ASD_spectral_library_all.hdr 34.2 KB 2003-07-19 - 2003-08-03
AllSpectra_Values.csv 9.1 MB 2003-07-19 - 2003-08-03
Pasture_spectra_biophysical_measurements.csv 6.5 KB 2003-07-19 - 2003-08-03

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Files related to this data set have been downloaded on 32 occasions since 2013-04-18, totaling 119 files.