Field Stereo Viewers for Aerial Photography
Portable stereo field viewers using color transparencies for three aerial film formats--70 mm, 9 by 9 inch, and panoramic (5 by 50 inch)--were developed for surveys using multistage techniques to appraise bark beetle damage. The three instruments are light in weight, compact, illuminated by indirect or reflected sunlight, and constructed of readily available materials. They can be built by anyone with good mechanical ability and the proper tools.
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Document Type: Journal Article
Affiliations: Master Machinist, Retired, from the Department of Agricultural Engineering, University of California at Davis
Publication date: 1981-07-01
The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
2016 Impact Factor: 1.675 (Rank 20/64 in forestry)
Average time from submission to first decision: 39.6 days*
June 1, 2016 to Feb. 28, 2017
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