Evaluation and Application of Aerial Infrared Photography. PJ Caldwell and B. Wark
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TextPublication details: 1979Online resources: Abstract: The practicability of aerial infrared photography for Ducks Unlimited (Canada) marsh development and management operations was investigated during 1977 and 1978. Infrared photography was found better than true color photography for distinguishing marsh plant communities during the optimum period - July 15th to August 15th. Smaller scale (1:40,000)photography was adequate for most D.U. work. Film format in 2 1/4 X 2 1/4 positive slides with supporting 9 X 9 prints was judged most versatile for biological uses. Habitat mapping and assessment procedures per marsh were found more reliable, took approximately one-half the time and cost the same as traditional ground inspection and sketching methods. A method of producing amalgamated cover-contour sandwich maps was developed. Infrared cover maps and contour plans will be used extensively in D.U. 's triennial inspection program.
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The practicability of aerial infrared photography for Ducks Unlimited (Canada) marsh development and management operations was investigated during 1977 and 1978. Infrared photography was found better than true color photography for distinguishing marsh plant communities during the optimum period - July 15th to August 15th. Smaller scale (1:40,000)photography was adequate for most D.U. work. Film format in 2 1/4 X 2 1/4 positive slides with supporting 9 X 9 prints was judged most versatile for biological uses. Habitat mapping and assessment procedures per marsh were found more reliable, took approximately one-half the time and cost the same as traditional ground inspection and sketching methods. A method of producing amalgamated cover-contour sandwich maps was developed. Infrared cover maps and contour plans will be used extensively in D.U. 's triennial inspection program.