Error analysis of Ordnance Survey map tidelines, UK
نویسندگان
چکیده
منابع مشابه
Accuracy of Heights from Ordnance Survey Maps
1) Spot heights at summits have an accuracy of about ±3.3m at all map scales, in agreement with the published figure. 2) Levelled heights from old 6-inch maps can be a few metres below the summit but are unlikely to be more than a few tenths of a metre higher. 3) The accuracy of old and new 1:50k maps is similar, but where heights have changed the old height has a tendency to be too low. 4) Spo...
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Current developments within the information technology industry are creating new opportunities for traditional information suppliers such as Ordnance Survey. In particular the ability to electronically trade information creates opportunities to increase the use of Ordnance Survey’s topographic information in ways that can be go beyond the delivery of such data in the form of a map. The future d...
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ژورنال
عنوان ژورنال: Proceedings of the Institution of Civil Engineers - Maritime Engineering
سال: 2012
ISSN: 1741-7597,1751-7737
DOI: 10.1680/maen.2011.10