14 search results - page 1 / 3 » Accuracy of Local Topographic Variables Derived from Digital... |
GIS
1998
ACM
13 years 4 months ago
1998
ACM
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 ca...
GIS
2004
ACM
14 years 5 months ago
2004
ACM
Triangular Irregular Network (TIN) and Regular Square Grid (RSG) are widely used for representing 2.5 dimensional spatial data. However, these models are not defined from the topo...
3DGIS
2006
Springer
13 years 10 months ago
2006
Springer
The objective of this work is to define procedures to improve spatial resolution of SRTM data and to evaluate their applicability in the Serra Negra region, in the district of Pat...
CARTOGRAPHICA
2010
13 years 2 months ago
2010
Shaded relief derived automatically from digital elevation models differs distinctly from traditional manual shading. Particularly at small scales, many small topographic details ...
CCCG
2001
13 years 6 months ago
2001
Local coordinates based on the Voronoi diagram are used in natural neighbour interpolation to quantify the "neighbourliness" of data sites. In an earlier paper, we have ...