This CD-ROM disc was developed as part of The Earth and the Heavens: the art of the mapmaker, an exhibition held in the British Library galleries from 7 July to 22 October 1995.
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This database contains extensive cartographicbasemap data for the world at a scale of 1:3 million.It includes cartographic, index, and statistical information suitablefor a wide range of mapping, reference, and analytical application
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navigational charts, bathymetry, bathymetric placenames, database, navigation software, marinas, database, chart index, tide tables, water levels
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Horizontal Accuracy: Linear features are within 2.5m of the centreline of construction.
Other features are relative to the linear features.
Vertical Accuracy: N/A
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The units are in meters, the spheroid is Clarke 1866 with the following parameters:
44 30' 00'= - first standard parallel
53 30' 00'= - second standard parallel-
85 00' 00'= - central meridian
0 0 0 - latitude of projections origin
930,000.00 -false… Read more.
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A hydrologically conditioned Digital elevation Model has been developed for the Greater Toronto Area of southern Ontario and for Lake Ontario. The model has been developed from 1:50 000 NTDB data onshore and Canadian Hydrographic Service bathymetric… Read more.
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Results of the AAPG Tectonic Map of North America Project, a compilation by hundreds of geologists across the continent. Offers latest tectonic data for North America and the bounding oceans. This popular map is provided here in ARC/Info coverages… Read more.
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Request data from the Robarts 5th floor reference area or email mdl@library.utoronto.ca
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Grid System: 3 Degree and 6 Degree
Vertical datum: unknown
Horizontal Accuracy:
Vertical Accuracy: N/A