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    Author(s): Earl J. Rogers
    Date: 1947
    Source: Station Paper NE-12. Philadelphia, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-16.
    Publication Series: Science Perspectives (SP)
    Station: Northeastern Research Station
    PDF: View PDF  (1.3 MB)

    Description

    Aerial photographs are now being applied more and more to practical forestry - especially to forest survey. Many forest characteristics can be recognized on aerial photographs in greater detail than is possible through ground methods alone. The basic need is for tools and methods for interpreting the detail in quantitative terms.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Rogers, Earl J. 1947. Estimating tree heights from shadows on vertical aerial photographs. Station Paper NE-12. Philadelphia, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-16.

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