Ecosystem Alteration Detection By Aerial Color Infrared Photography And Satellite Multispectral Scanner

W. Anthony Blanchard

doi:10.1117/12.955863

9 November 1977 Ecosystem Alteration Detection By Aerial Color Infrared Photography And Satellite Multispectral Scanner

W. Anthony Blanchard

Proceedings Volume 0124, Modern Utilization of Infrared Technology III; (1977) https://doi.org/10.1117/12.955863
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

The use of color infrared photography in stress detection in forestry and agricultural applications is well established. In the ecological succession process, the dominant vegetation population is deteriorated because of a change in the local environment. This change results in the proliferation of a species or community better suited to the altered environment. Stresses on the health, vigor and productivity of the succeeded plant population are early signs of the environmental alteration. Visual interpretation of aerial color infrared photography of a south Louisiana swamp determines where an ecosystem succession may occur by monitoring the advance signs of stress invisible to conventional films. The digital data from bands five (0.6-0.7 micrometers) and seven (0.8-1.1 micrometers) of LANDSAT earth orbiting satellite is used to characterize and compare the spectral signatures of known areas of environmental alteration in the swamp lands with areas of unaffected swamp vegetation. The image classification capability of a Comtal-Varian Interactive Image Processing System uses the spectral signatures of the test areas as a search tool for locating other potential succession areas over a wide region.

Citation Download Citation

W. Anthony Blanchard "Ecosystem Alteration Detection By Aerial Color Infrared Photography And Satellite Multispectral Scanner", Proc. SPIE 0124, Modern Utilization of Infrared Technology III, (9 November 1977); https://doi.org/10.1117/12.955863

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KEYWORDS

Infrared photography

Earth observing sensors

Ecosystems

Landsat

Infrared radiation

Reflectivity

Satellites

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