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    Author(s): Earl J. Rogers
    Date: 1948
    Source: Station Paper NE-20. Philadelphia, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 10 p.
    Publication Series: Science Perspectives (SP)
    Station: Northeastern Research Station
    PDF: View PDF  (1.51 MB)

    Description

    Aerial photos are a handy tool for the forester. They furnish forest data quickly. But when the photo is used as a map, care is necessary - especially in rough country. In flat country photo scales are quite uniform and distances can be measured accurately. But in rough country photo scale varies with changes in elevation, and it is more difficult to measure distances accurately. There are other factors that affect photo scale, but land elevation is the most important to foresters.

    Publication Notes

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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. 1948. A short cut for scaling aerial photos. Station Paper NE-20. Philadelphia, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 10 p.

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