The National Geodetic Survey Information Center (NGSIC) is responsible for the publication of all adjusted vertical and horizontal control data. These data are used by federal state, and local governments, as well as private concerns. The NGSIC has been faced with a tremendous problem in collecting, processing, storing and retrieving these data for publication. Excessive time and efficiency have been lost due to the manual compilation of data for quad publications. Updating a quad has been a particular hindrance to publication since data have been added, changed, or deleted by "cut-and-paste" methods. One of the steps taken to alleviate the publication problem has been the development of a vertical control data base system. Computer software has been developed for processing bench mark elevation data--the final output being the vertical control quad publication. The system employs multiple storage media and varied data structures. Several modes of publication are being tested--microfilm, microfiche, the Xerox 1200 Printer, etc. Plans are proceeding for the extension of the data base system. However, it has become most evident that the standardization of data elements within the geodetic community is vitally needed. For without standardization, the most elaborate of automated systems fails.

  • Supplemental Notes:
    • Proceedings of the American Congress on Surveying and Mapping Fall Convention held in Washington, D.C. from September 10-13, 1974.
  • Corporate Authors:

    American Congress on Surveying and Mapping

    Woodward Building, Room 430, 733 15th Street, N W
    Washington, DC  United States  20005
  • Authors:
    • Holdabl, J H
    • Beard, H G
  • Publication Date: 1974-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00263599
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 19 1974 12:00AM