Space Oblique Mercator Projection mathematical development.
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Space Oblique Mercator Projection mathematical development.

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Published by U.S. Dept. of the Interior in Washington .
Written in English


Book details:

Edition Notes

11

The Physical Object
Pagination108
Number of Pages108
ID Numbers
Open LibraryOL22016803M

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Space oblique mercator projection mathematical development (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: John Parr Snyder; Geological Survey (U.S.).   The new map projection (the Space Oblique Mercator) projects the satellite ground-track from the ellipsoid into the map plane, free of length distortion and free of normal view curvature distortion. The length and curvature distortions in the finite .   The concept of SOM was originated by Colvocoresses, which was mathematically developed and later modified by Snyder. It is most suitable for continuous mapping of satellite imagery, true to scale along ground track. Simplified mathematical formulation without complicated integral equations and constants of SOM projection for Landsat, SPOT and IRS satellites on Clarke and Author: M Nazim, R P Kala.   This new projection was created by John Parr Snyder and is known as the Space Oblique Mercator (SOM) projection. It is considered, “one of the most complex projections ever devised” according to cartographic historian, John W. Hessler. Excerpted from upcoming Landsat Legacy book: Space Oblique Mercator: A new Map Projection for the Space Age.

The new map projection (the Space Oblique Mercator) projects the satellite ground-track from the ellipsoid into the map plane, free of length distortion and free of normal view curvature distortion. Space-oblique Mercator projection is a map projection devised in the s for preparing maps from Earth-survey satellite data. It is a generalization of the oblique Mercator projection that incorporates the time evolution of a given satellite ground track to optimize its representation on the map. The oblique Mercator projection, on the other hand, optimizes for a given geodesic. The oblique Mercator map projection is an adaptation of the standard Mercator projection. The oblique version is sometimes used in national mapping systems. When paired with a suitable geodetic datum, the oblique Mercator delivers high accuracy in zones less than a few degrees in arbitrary directional extent. Space Oblique Mercator maps show a satellite's groundtrack as a curved line that is continuously true to scale as orbiting continues. Extent of the map is defined by orbit of the satellite. Map is basically conformal, especially in region of satellite scanning. Developed in by A. P. Colvocoresses, J. P. Snyder, and J. L. Junkins.

  Source: Space Oblique Mercator Projection Mathematical Development, USGS Bulletin by John Parr Synder. To continually map the Earth’s surface using Landsat data, an entirely new projection had to be created. This new projection was created by John Parr Snyder and is known as the Space Oblique Mercator (SOM) projection. This projection has been referred to as, “one of the most complex projections . Some projections treat the Earth only as a sphere, others as either ellipsoid or sphere. The USGS has also conceived and designed several new projections, including the Space Oblique Mercator, the first map projection designed to permit mapping of the Earth continuously from a satellite with low s: 2. The formulas are quite interrelated. The ellipsoidal transverse and oblique Mercator projections remain more involved. An adaptation of the Space Oblique Mercator projection provides a new ellipsoidal oblique Mercator which, unlike Hotine's, retains true scale throughout the length of the central line. The Oblique Mercator projection was replaced by the Space Oblique Mercator projection for Land-sat map images in with the launching of an earth-mapping satellite by NASA. This map projection allowed mapping of the scanned orbit cycles, with the ground-track continuously at a correct scale and the swath on a conformal projection with.