Accession Number:

AD0686977

Title:

APPLICATION OF SMALL AERIAL CAMERAS TO THE COMPILATION OF 1:25,000 SCALE TOPOGRAPHIC MAPS,

Descriptive Note:

Corporate Author:

ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Personal Author(s):

Report Date:

1969-03-10

Pagination or Media Count:

13.0

Abstract:

The 120,000 - 135,000 scale aerial photography commonly used in compiling 125,000 scale topographic maps does not always permit certain interpretation of ground features or correct identification of control points. Experiments in 1965 with supplementary aerial photography at scales of 15,000 and 18,000 enabled office interpretation reliability about equal to that obtained by field check methods. Tests were carried out with this camera mounted in a pod attached to the landing gear support struts of a helicopter. Such photography permits identification and precise transfer of ground control points to the main survey photographs by means of an interpretscope permits selective photographic coverage of cultural features constructed subsequent to the main survey photography and permits timely photographic coverage of shorelines at highest tide and rivers at mean water level. Author

Subject Categories:

  • Cartography and Aerial Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE