Accession Number : AD0718038

Title :   An Investigation of the Accuracy of Multiquadric Equations of Topography.

Descriptive Note : Technical rept.,

Corporate Author : ARMY TOPOGRAPHIC COMMAND WASHINGTON D C

Personal Author(s) : Brooks,Paul Dennis

Report Date : MAR 1971

Pagination or Media Count : 106

Abstract : A new technique has been developed in representing topography by the summation of equations of quadric surfaces having unknown coefficients. This study tested the conic multiquadric equation of topography for eight geomorphologically diversified areas. Data points were selected for two modes of operation; significant points on a surface and a grid pattern. The criterion for evaluating the accuracy of the computed surfaces was the United States National Map Accuracy Standards. Four hyperboloid multiquadric equations were also tested to show their justification as one of the many possibilities for computing multiquadric surfaces. (Author)

Descriptors :   (*MAPPING, NUMERICAL METHODS AND PROCEDURES), GRAPHICS, COMPUTER PROGRAMS, PHOTOGRAMMETRY, TEST METHODS, THESES

Subject Categories : Cartography and Aerial Photography
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE