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Gap Light Analyzer (GLA)

Imaging software to extract forest canopy structure and gap light transmission indices from true-colour hemispherical (fisheye) photograph


The Download has been updated to allow installation of GLA on both 32-bit and 64-bit computers. Many thanks to David Wojtowicz of the University of Illinois for making the changes to the Installer. The original GLA software has not changed.

Modelling and Application Design

Gordon W. Frazer, Simon Fraser University
Charles D. Canham, Cary Institute of Ecosystem Studies

Software Engineering

Pamela Sallaway, Spatial Solutions, Inc.
Dimitri Marinakis, University of Victoria

Project Funding

Forest Renewal BC Research Grant to:
Kenneth P. Lertzman, Simon Fraser University

Copyright (c) 1999:
Simon Fraser University,  Cary Institute of Ecosystem Studies

All rights reserved