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Distinguishing Ecological Parameters in a Coastal Area Using a Video System with Visible/Near-Infrared/ Mid-Infrared Sensitivity
J. H. Everitt, D. E. Escobar, C. Yang, R. I. Lonard, F. W. Judd, M. A. Alaniz, I. Cavazos, M. R. Davis and D. L. Hockaday
Journal of Coastal Research
Vol. 15, No. 4 (Autumn, 1999), pp. 1145-1150
Published by: Coastal Education & Research Foundation, Inc.
Stable URL: http://www.jstor.org/stable/4299031
Page Count: 6
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This paper reports on the application of an aerial digital video imaging system with visible (VIS) (0.625-0.635 μm), near-infrared (NIR) (0.845-0.857 μm), and mid-infrared (MIR) (1.631-1.676 μm) spectral sensitivity for distinguishing ecological parameters in a coastal ecosystem on the southern Texas Gulf Coast. This system produces false color imagery similar to that of the Landsat Thematic Mapper (TM) bands 5,4,3. Imagery from this system was useful for differentiating among a variety of land-use types including plant species, soil surface conditions, and water. Computer analysis of the imagery showed that many of the ecological variables could be quantified. An accuracy assessment performed on the classified image showed an overall accuracy of 82.4%. The imagery was also useful for interpreting the coarser resolution TM. Ground radiometric reflectance measurements were made of various ecological parameters to assist in interpreting the imagery.
Journal of Coastal Research © 1999 Coastal Education & Research Foundation, Inc.