Monday, 11 May 2009

Yukon, Nunavut & NWT Topographical Data Base improved

In supporting the Northern Canadian users of topographic data at the scale of 1:250,000, ESS has applied planimetric corrections to existing Topographical Data Base NTDB files covering the 3 territories: Nunavut, Northwest and Yukon Territories for a total of over 621 data sets.

The geometric corrections have improved the overall accuracy of the data sets from 150-200 meters to 60 meters. Earth Sciences Sector (ESS) is planning to complete the 621 data sets for the territories by early summer of 2009. 

Over 200 files are now available. You can consult the list at:


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