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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| Ministère/Organisme | Communications Research Centre (Canada), issuing body. |
|---|---|
| Titre | The CRC topographic data base / by J.H. Whitteker. |
| Titre de la série | CRC report ; no. 1353 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| 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. |
| Information sur la publication | Ottawa : Communications Research Centre, February 1982. |
| Auteur / Contributeur | Whitteker, J. H. (James Howard), 1940- author. |
| Description | 1 online resource (vii, 57 pages) : illustrations, maps. |
| Numéro de catalogue |
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| Descripteurs | Land cover -- Canada -- Databases. Occupation du sol -- Canada -- Bases de données. Canada -- Altitudes -- Databases. Canada -- Altitudes -- Bases de données. |
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