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(Article of periodic en Anglais - 1981)

Document title

The projected characterictics of a national topographic digital databank

Authors(s) and Affiliation(s)

ADAMS T. A. ; RHIND D. ;

Abstract

An estimation of the characteristic of projected national digital topographic data bases for Great Britain, based on a sample of over 400 Ordnance Survey digital maps at 1: 1250 and 1: 2500 scales. The sources of the considerable uncertainty in the projections are discussed: some 3000km of line work at map scale needs to be encoded to provide basic scale coverage apart from contours. With present Ordnance Survey methods of storage, this Would require about 580 magnetic tapes.

Source

Article of periodic

published at : The geographical journal London

Editor :

Millesime : 1981, vol. 147, no1 [pp. 38-53]

Bibliographic references : 20 réf.

Language

Anglais

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