Download or read book The Role of Aerial Surveys in Highway Engineering written by United States. Bureau of Public Roads and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Aerial Surveys in Highway Engineering Prepared for the Ninth Congress International Society for Photogrammetry London England September 5 7 1960 written by United States. Bureau of Public Roads and published by . This book was released on 1960 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organization and Conduct of Forest Insect Aerial Surveys in Oregon and Washington written by J. F. Wear and published by . This book was released on 1955 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Influencing Waterfowl Counts on Aerial Surveys 1961 66 written by R. Kahler Martinson and published by . This book was released on 1967 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveying of selected transects from the air and from the ground has been used since 1959 to determine the proportion of waterfowl, by species, that are observed by aerial crews. This method attempts to resolve obvious biases in aerial indexes relating to habitat differences, seasonal differences, aerial crew changes, etc. Assumptions in this method of correction are that (1) the ground crew observed substantially all waterfowl present and (2) the selected comparison transects adequately represent surrounding transects to which the correction is to be applied. This report, utilizing data of 1961 to 1966, reviews the necessity for air:ground correction and evaluates the procedure as a solution to aerial index biases ; problems apparent are lack of representativeness of air:ground transects and inadequate numbers of transects. Lack of representativeness appears in population density and in species composition differences between air:ground and operational transects. The degree to which the numbers of air:ground ratios varies according to areas and according to species. Recommendations to improve the air:ground technique are: (1) make two daily surveys of one aerial pass each, at an interval of at least two hours, in the same direction and at the same time as the adjacent operational transects are surveyed ; (2) make ground counts the day before or day after aerial surveys ; (3) lay out all air:ground comparison transects in the same direction (west-east) as the operational transects ; and (4) match new or relocated transects as nearly as possible to density and species composition of the survey stratum or area they represent.
Download or read book Aerial Surveys of Endangered Whales in the Beaufort Sea Fall 1992 written by Stephen D. Treacy and published by . This book was released on 1993 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Waterfowl Production in North America 1955 71 written by Charles J. Henny and published by . This book was released on 1972 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Josh Hemmer reminisces about his boyhood on the farm and his many interesting relatives.
Download or read book Aerial Surveys of Endangered Whales in the Beaufort Sea Fall 1997 written by Stephen D. Treacy and published by . This book was released on 1998 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys for Sea Turtles Marine Mammals and Vessel Activity Along the Southeast Florida Coast 1992 1996 written by David B. McClellan and published by . This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Canada Geese and Black Ducks in Eastern Canada written by Charles F. Kaczynski and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes results from aeriakl surveys of Canada geese and black ducks in eastern Canada. Information presented is based on data obtained during the summer of 1956, 1962-66 for Canada geese and during the spring of 1955, 1963-66 for black ducks.
Download or read book Reference Guide Outline Specifications for Aerial Surveys and Mapping by Photogrammetric Methods for Highways 1958 written by United States. Bureau of Public Roads and published by . This book was released on 1958 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Endangered Whales in the Beaufort Sea Fall 1995 written by Stephen D. Treacy and published by . This book was released on 1996 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Endangered Whales in the Northern Bering Eastern Chukchi and Alaskan Beaufort Seas 1985 written by and published by . This book was released on 1986 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerial Surveys of Endangered Whales in the Beaufort Sea Fall 1993 written by Stephen D. Treacy and published by . This book was released on 1994 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reference Guide Outline written by Photogrammetry for Highways Committee and published by . This book was released on 1958 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Aerial Surveys in Highway Engineering written by United States. Bureau of Public Roads and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photogrammetry and Aerial Surveys 1963 written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1965 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Highway Research Record is dedicated to the field of aerial surveying. Papers cover topics including electrotape measurements, geodimeters, tellurometers, stereotriangulation, aerial photography and photogrammetrics.
Download or read book A Guide to Conducting Aerial Sketchmapping Surveys written by Timothy J. McConnell and published by . This book was released on 2000 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this guide is to describe general procedures used by experienced aerial survey specialists to collect forest health data via sketchmapping. It is not intended to be a specific "how to" manual for all types of aerial surveys, nor replace training in aviation safety and management, on-the-ground field training, or apprenticeship flight time during regular aerial surveys. Rather, it is a "guide" to the aspects of flying and sketching that make up sketchmapping, presenting a comprehensive overview of aerial overview surveys and a general review of aerial survey sketchmapping methodology.
