The Mosaicking of ERTS-1
Imagery on Albers' Equal-Area Projection
Author: Hooper, Ralph M.
Source: Cartography and Geographic Information Science, 1 April 1974, vol. 1, no. 1, pp. 29-38(10)
Abstract:The principal factors affecting the usual methods of compiling controlled aerial mosaics are, in their order of importance: (1) displacement of imagery caused by ground relief and (2) dimensional characteristics of photographic papers when mounted with water soluble adhesives. In comparison to these, the map projection used to control the assemblage is of much less significance.
Mosaicking ERTS-1 imagery, however, involves a different order of factors, namely: (1) scale characteristics of the map projection and (2) dimensional characteristics of photographic papers.
Graphs and charts are presented to give printing ratios and the associated amounts of tilt that may be applied to ERTS-1 images so that resultant photographs will have those characteristics which make it possible to compile a precision mosaic on an Albers' equal-area projection base. The Albers' projection was used by the U.S. Geological Survey in producing base maps for the National Atlas Project. ERTS-1 imagery compiled on this base can, therefore, be brought into register with those maps.
Document Type: Research Article
Publication date: April 1, 1974