The CRC topographic data base / by J.H. Whitteker.: Co24-3/7-1353-1982E-PDF

"A data base of terrain elevations and surface types has been compiled, primarily to provide input data for radio-wave prediction programs. The data have been derived by hand-scaling 1:50000 scale topographic maps. An elevation and a surface code (forest, lake, etc.) is stored for each point in a square array with 500 metre spacing. The data reside on computer disk, and are organized for rapid access. The usual method of obtaining information from the data base is by means of a Fortran subroutine that provides elevations and surface codes at 500 m intervals along any specified great-circle path within the data-base area. The elevations may also be plotted on an ordinary (alphanumeric) computer terminal"--Abstract, page 1.

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Publication information
Department/Agency Communications Research Centre (Canada), issuing body.
Title The CRC topographic data base / by J.H. Whitteker.
Series title CRC report ; no. 1353
Publication type Series - View Master Record
Language [English]
Format Electronic
Electronic document
Note(s) "Radar and Communications Technology Branch."
Digitized edition from print [produced by Innovation, Science and Economic Development Canada].
Some pages rotated in this copy.
Includes bibliographical references (page 36).
Issued also in print format.
Publishing information Ottawa : Communications Research Centre, February 1982.
Author / Contributor Whitteker, J. H. (James Howard), 1940- author.
Description 1 online resource (vii, 57 pages) : illustrations, maps.
Catalogue number
  • Co24-3/7-1353-1982E-PDF
Subject terms Land cover -- Canada -- Databases.
Occupation du sol -- Canada -- Bases de données.
Canada -- Altitudes -- Databases.
Canada -- Altitudes -- Bases de données.
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