Accuracy of local topographic variables derived from digital elevation models
نویسندگان
چکیده
منابع مشابه
Accuracy of Local Topographic Variables Derived from Digital Elevation Models
We study the accuracy of data on some local topographic attributes derived from digital elevation models (DEMs). First, we carry out a test for the precision of four methods for calculation of partial derivatives of elevations. We ® nd that the Evans method is the most precision algorithm of this kind. Second, we produce formulae for root mean square errors of four local topographic variables (...
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ژورنال
عنوان ژورنال: International Journal of Geographical Information Science
سال: 1998
ISSN: 1365-8816,1362-3087
DOI: 10.1080/136588198242003