Leaf Chemistry, 1992-1993 (ACCP)

As part of NASA's Accelerated Canopy Chemistry Program (ACCP) analyses were performed for the determination of carbon constituents and nitrogen content in fresh forest foliage. Samples were analyzed using a series of extraction's that yielded different carbon constituents: non-polar, polar, cellulose and lignin. Nitrogen analyses were conducted using a standard combustion procedure. Approximately 1000 leaf samples were collected from 5 geographically distinct sites and were analyzed at the University of New Hampshire to ensure consistency in analysis. Results were used as a calibration set for Visible/NIR reflectance and the estimation of canopy carbon and nitrogen concentrations.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 02:18 (UTC)
Created April 1, 2025, 17:01 (UTC)
accessLevel public
bureauCode {026:00}
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harvest_object_id fb628b91-8446-488f-9755-64b389851073
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/421
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
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spatial ["CARTESIAN", [{"WestBoundingCoordinate": -121.763, "NorthBoundingCoordinate": 45.2222, "EastBoundingCoordinate": -68.7356, "SouthBoundingCoordinate": 29.7}]]
temporal 1992-06-18/1993-05-27
theme {"Earth Science"}