TY - JOUR
T1 - Accuracy of SPOT digital elevation model and derivatives
T2 - utility for Alaska's north slope
AU - Sasowsky, K. C.
AU - Petersen, G. W.
AU - Evans, Barry Michael
PY - 1992/1/1
Y1 - 1992/1/1
N2 - This investigation not only evaluates the accuracy of a portion of a SPOT DEM but evaluates products derived from it; namely, slopes, aspects, and thickness of thaw layer. A DEM was created from an image pair with less than optimum difference between image acquisition angles at a study site in northern Alaska. Root mean square (RMS) errors for elevations were 19.3m and 13.7m and for slopes were 2.7% to 4.0%. Aspects agree in general slope orientation. Even though the area had relatively low relief (~250m with a ~25km2 area), the SPOT-derived DEM provides sufficiently accurate ground elevation, slope gradient, and aspect data for use in ecosystem investigations. -from Authors
AB - This investigation not only evaluates the accuracy of a portion of a SPOT DEM but evaluates products derived from it; namely, slopes, aspects, and thickness of thaw layer. A DEM was created from an image pair with less than optimum difference between image acquisition angles at a study site in northern Alaska. Root mean square (RMS) errors for elevations were 19.3m and 13.7m and for slopes were 2.7% to 4.0%. Aspects agree in general slope orientation. Even though the area had relatively low relief (~250m with a ~25km2 area), the SPOT-derived DEM provides sufficiently accurate ground elevation, slope gradient, and aspect data for use in ecosystem investigations. -from Authors
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M3 - Article
AN - SCOPUS:0027007817
VL - 58
SP - 815
EP - 824
JO - Photogrammetric Engineering and Remote Sensing
JF - Photogrammetric Engineering and Remote Sensing
SN - 0099-1112
IS - 6
ER -