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A Ground Truthing Method for AVIRIS Overflights Using Canopy Absorption SpectraRemote sensing for ecological field studies requires ground truthing for accurate interpretation of remote imagery. However, traditional vegetation sampling methods are time consuming and hard to relate to the scale of an AVIRIS scene. The large errors associated with manual field sampling, the contrasting formats of remote and ground data, and problems with coregistration of field sites with AVIRIS pixels can lead to difficulties in interpreting AVIRIS data. As part of a larger study of fire risk in the Santa Monica Mountains of southern California, we explored a ground-based optical method of sampling vegetation using spectrometers mounted both above and below vegetation canopies. The goal was to use optical methods to provide a rapid, consistent, and objective means of "ground truthing" that could be related both to AVIRIS imagery and to conventional ground sampling (e.g., plot harvests and pigment assays).
Document ID
19980201635
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Gamon, John A.
(California State Univ. Los Angeles, CA United States)
Serrano, Lydia
(California State Univ. Los Angeles, CA United States)
Roberts, Dar A.
(California Univ. Santa Barbara, CA United States)
Ustin, Susan L.
(California Univ. Davis, CA United States)
Date Acquired
August 18, 2013
Publication Date
January 1, 1996
Publication Information
Publication: Summaries of the Sixth Annual JPL Airborne Earth Science Workshop
Volume: 1
Subject Category
Space Radiation
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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