Louisiana Administrative Code
Title 43 - NATURAL RESOURCES
Part XXVII - State Lands
Subpart 1 - Land Information Mapping and Map Records System
Chapter 7 - Aerial Photography
Section XXVII-703 - Conditions during Photography
Current through Register Vol. 50, No. 9, September 20, 2024
A. Vertical aerial photography will be accomplished during the period when deciduous trees are as barren as local climatic conditions permit and when the sun angle is not less than 30 degrees above the horizon. Photography will not be undertaken when the ground is obscured by snow, haze, fog or dust; when streams and rivers are not within their normal banks; or when the clouds or cloud shadows will appear on more than 5 percent of the areas in any one photograph. The photographs shall not contain objectional shadows caused by low solar altitude.
B. Photogrammetric targets shall be installed to mark ground control points for subsequent aerial triangulation and control of base map compilation. Care shall be taken to coordinate photographic flight schedules and ground target maintenance to ensure that a minimum of 95 percent of all targets set show up on the aerial photography.
AUTHORITY NOTE: Promulgated in accordance with R.S. 50:171.
