LBA-ECO CD-04 Biomass Survey, km 83 Tower Site, Tapajos National Forest, Brazil

This data set contains the results of a biometric tree survey of a 19.25 ha area adjacent to the eddy flux tower at the km 83 logged forest tower site in Tapajos National Forest, Para, Brazil. The survey was done in March 2000. All measurements reported here were taken before the logging began. Diameters of all trees > 35 cm DBH within the 19.25 ha survey area were recorded and trees with DBH between 10 and 35 cm DBH were recorded along three transects with a total area of 2.3 ha (Miller et al., 2004). These data were used to calculate net ecosystem productivity (NEP) and the role of this forest as a carbon source or sink. Biometric data are reported in one comma-delimited ASCII file.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 02:12 (UTC)
Created April 1, 2025, 16:52 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 735a1e92-84d4-47c5-b915-307e15645bbc
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/990
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash b413ca9853981f5904465f7707b66fe38785b0f0c18470610dfcaf0400ed8201
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -54.9707, "NorthBoundingCoordinate": -3.017, "EastBoundingCoordinate": -54.9707, "SouthBoundingCoordinate": -3.017}]]
temporal 2000-03-01/2009-03-28
theme {"Earth Science"}