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    Author(s): Matthew WinnJeff Palmer; S.-M. Lee; Philip Araman
    Date: 2016
    Publication Series: General Technical Report (GTR)
    Station: Southern Research Station
    PDF: View PDF  (4.0 MB)

    Description

    ForestCrowns is a Windows®-based computer program that calculates forest canopy transparency (light transmittance) using ground-based digital photographs taken with standard or hemispherical camera lenses. The software can be used by forest managers and researchers to monitor growth/decline of forest canopies; provide input for leaf area index estimation; measure light transmission to the forest floor; analyze canopy gaps; detect disease, insect, or storm damage; and monitor health treatments. ForestCrowns can analyze entire images or target specific areas to obtain transparency estimates of individual tree crowns. The program can also store images and assessment results, allowing for periodic monitoring of canopies and crowns.

    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

    Winn, M.F.; Palmer, A.J.; Lee, S.-M.; Araman, P.A. 2016. ForestCrowns: a transparency estimation tool for digital photographs of forest canopies. e-Gen. Tech. Rep. SRS–215. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 10 p

    Keywords

    Crowns, forest canopy, light transmittance, monitoring, transparency.

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