LBA-ECO Forest Gap Tower CO2 and Heat Flux Measurements

NASA's LBA-ECO CD-04 dataset provides 30-minute values for above-canopy meteorology and fluxes of momentum, heat, and carbon dioxide, along with within-canopy carbon dioxide and water vapor concentrations. Measurements were collected at 12 vertical levels between 10 cm and 64 m from a tower installed in a logging gap within the Tapajos National Forest, Brazil. Data collection spanned 1.5 years from June 2002 to January 2004.

Use Cases

• Modeling carbon flux and energy balance in a post-logging forest gap environment using 30-minute CO2, heat, and momentum flux measurements.
• Analyzing vertical gradients of within-canopy carbon dioxide and water vapor concentrations across 12 measurement levels.
• Studying the impact of selective logging on local atmospheric chemistry and surface temperature via time-series data from the gap tower site.
• Correlating above-canopy meteorological conditions with sub-canopy vapor indicators to understand forest-atmosphere interactions.

Strengths

• Provides high-temporal-resolution 30-minute measurements over a continuous 1.5-year period from June 2002 to January 2004.
• Features detailed vertical profiling with data collected at 12 distinct levels from near-ground (10 cm) to above-canopy (64 m).
• Dataset is focused on a controlled environment, comparing a tower in a 50m x 50m logging gap to a nearby intact forest tower.

Limitations

• Key structural metadata such as row count, file size, and specific column names are unavailable across all platforms.
• There is a conflict in the 'last updated' date: DataGov lists March 2026, while NASA Earthdata lists January 2004, suggesting potential metadata errors.
• The license is ambiguously listed as 'other-license-specified' without clear terms for reuse.

Provenance

Source

National Aeronautics and Space Administration (NASA), LBA-ECO project.

Collection Method

Data collected via tower-based sensors using eddy covariance and concentration measurement techniques at a fixed site.

Time Range

2002-06-03 to 2004-01-30

Freshness

2026-03-13 01:05:08.999821

Geography

km 83 Tower Site, Tapajos National Forest, Para, Brazil.