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Description

This data set provides measurements of Radon-222 activity in air, within and above the vegetation canopy at two flux tower sites in the Tapajos National Forest -- the km 67 forested site located in undisturbed old-growth (primary) forest and the km 83 logged forest site, and a third flux tower site -- the km 77 pasture tower site on BR-163 just south of the city of Santarem, Para, Brazil. Measurements were made over various intervals from 2000 to 2004..

Continuous Rn-222 activity profiles within and above the forest canopy were measured with detector array systems of eight or more flow-through detectors based on a pulse-ionization Rn counting air chamber controlled by custom software.

There are 16 data files in comma-delimited (.csv) format with this data set.

Product Summary

Platforms
FIELD INVESTIGATION
Instruments
IONIZATION CHAMBER
Projects
LBA-ECO
Spatial Extent

N: -2.857 S: -3.0202 E: -54.8885 W: -54.9707

Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2000-01-01 to 2004-12-09
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C4317639229-ORNL_CLOUD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Updated
Science Keywords
Cloud Frequency

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Martens, C. S., de Moraes, O. L. L., Crill, P. M., Mendlovitz, H. P., & Moura, J. M. (2015). LBA-ECO TG-04 Radon Activity at Forested and Pasture Sites, Para, Brazil: 2000-2004 (Version 1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1276 Date Accessed: 2026-10-25

Documents

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