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LBA-ECO CD-37 Secondary Forest Biomass and Age Class, Rondonia, Brazil


Data setLBA-ECO CD-37 Secondary Forest Biomass and Age Class, Rondonia, Brazil
Release date2013-02-13
ProjectLarge Scale Biosphere-Atmosphere Experiment (LBA-ECO)
Time period1975-06-19 to 2003-05-20

Usage Metrics

CountEarliest DateLatest DateData Usage
Downloads812013-02-132017-05-23355 total files downloaded


This data set provides tree age, forest formation, and land cover classification maps, and estimates of landscape-level above-ground live woody biomass (AGLB) for secondary forests in Rondonia, Brazil. The Threshold Age Mapping Algorithm (TAMA) was applied to a densely spaced time series of Landsat images (1975 to 2003) to derive forest type and age classification maps. The AGLB of the secondary forest was estimated by combining the forest classification map with coincident biomass estimates from the Geoscience Laser Altimeter System (GLAS). There are five raster images and three comma-delimited data files with this data set.

Data set documentation


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Crosscite Citation Formatter
Helmer, E.H., M.A. Lefsky, and D.A. Roberts. 2013. LBA-ECO CD-37 Secondary Forest Biomass and Age Class, Rondonia, Brazil. ORNL DAAC, Oak Ridge, Tennessee, USA.

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Data Files

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Data File (Granule)File SizeDates
GLAS_Secondary_Forest.csv 86.7KB 1975-06-19 to 2003-05-20
TAMA_Model_Checkpoints.csv 2.9KB 1975-06-19 to 2003-05-20
TAMA_thresholds.csv 588 B 1975-06-19 to 2003-05-20 5.8MB 1975-06-19 to 2003-05-20 3.2MB 1975-06-19 to 2003-05-20

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Data set has 1 companion files.

  • CD37_Biomass_Landsat_GLAS.pdf