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Filtering by: Subject Dead trees -- Measurement

Evaluation of 35mm vertical aerial photography for estimating tree mortality

Creator:

Williams, Ralph E. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Evaluation of four 35 mm film:lens combinations for estimating conifer mortality showed that large-scale true color images obtained with Kodak High Speed Ektachrome and color infrared images obtained with Kodak Ektachrome Infrared, both exposed through a 135 mm lens were best. Higher correlation coefficients were found for the true color:135...

Resource Type:

Technical Report