LIU Xuejun.On the accuracy of the algorithms for inter-preting grid-based digital terrain model.
[3]
Skidmore A K.A comparison of techniques for the calcula-tion of gradient and aspect from a grided digital elevationmodel.International Journal of Geographical InformationSystems,1989,(3):323～334.
[4]
Florinsky I V.Accuracy of local topographic variables de-rived from digital elevation models.Int J Geographical In-formation Science,1998,12(1):47261.
Bolstad P V,Stowe T.An evaluation of DEM accuracy:El-evation,slope,and aspect.Photogrammetric Engineeringand Remote Sensing,1994,60(11):1327～1332.
[11]
Kang-tsung Chang,Bor-wen Tsai.The effect of DEM res-olution on slope and aspect mapping.Cartography and Ge-ographic Information Systems,1991,18(1):69～77.
[12]
TANG Guoan,YANG Qinke,ZHANG Yong et al.A re-search on the accuracy of slope derived from DEMs ofdifferent map scales.Bulletin,2001.
[13]
TANG G.A research on the accuracy of digital elevationmodels.Beijing:Science Press,2000.
