Abstract
Evaluation of positional accuracy of digital topographic maps at scale 1:25 000 (DTM25) on the basis of STANAG 2215 standard
Highlights
Positional accuracy represents the nearness of those values to the entitys "true" position in the coordinate system (Drummond, 1995), (Tveite, 1999)
S. et al, Evaluation of positional accuracy of digital topographic maps at scale 1:25000(DTM25) on the basis of STANAG 2215 standard pp.106-121 is defined as the accuracy of the position of features within a spatial reference system (Stanislawski et al, 1996), (Zandbergen, 2008), (Drobnjak et al, 2016)
In STANAG 2215, the absolute horizontal accuracy is defined as the uncertainty in the horizontal position of a point with respect to the horizontal datum required by a product specification, caused by random and any systematic errors, and is expressed as a circular error at the 90% confidence level – Circular Map Accuracy Standard (CMAS) (NATO, 2002)
Summary
Positional accuracy represents the nearness of those values to the entitys "true" position in the coordinate system (Drummond, 1995), (Tveite, 1999). Positional accuracy may be defined as a degree to which the digital representation of a real-world entity agrees with its true position on the earth’s surface (Congalton & Plourde, 2002), (Devillers & Jeansoulin, 2010). It consists of three sub-elements of data quality: – Absolute or external accuracy – closeness of the reported coordinate values to the values accepted as or being true; – Relative or internal accuracy – closeness of the relative positions of features in a dataset to their respective relative positions accepted as or being true; – Positional accuracy of gridded data – closeness of the gridded data spatial position values to the values accepted as or being true
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