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Derivative Analysis of AVIRIS Data for Crop Stress DetectionLow-altitude Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) hyperspectral imagery of a cornfield in Nebraska was used to determine whether derivative analysis methods provided enhanced plant stress detection compared with narrow-band ratios. The field was divided into 20 plots representing 4 replicates each of 5 nitrogen (N) fertilization treatments that ranged from 0 to 200 kg N/ha in 50 kg/ha increments. The imagery yielded a 3 m ground pixel size for 224 spectral bands. Derivative analysis provided no advantage in stress detection compared with the performance of narrow-band indices derived from the literature. This result was attributed to a high leaf area index at the time of overflight (LAI approx. equal to 5 to 6t) and the high signal-to-noise character of the narrow AVIRIS bands.
Document ID
Acquisition Source
Stennis Space Center
Document Type
Preprint (Draft being sent to journal)
Estep, Lee
(Lockheed Martin Technology Services Group United States)
Carter, Gregory A.
(NASA Stennis Space Center Stennis Space Center, MS, United States)
Berglund, Judith
(NASA Stennis Space Center Stennis Space Center, MS, United States)
Date Acquired
August 23, 2013
Publication Date
February 10, 2003
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
Funding Number(s)
Distribution Limits
Work of the US Gov. Public Use Permitted.
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