7Florinsky I V, Kuryakova G A. Determination of grid size for digital terrain modelling in landscape Investigations- exemplified by soil moisture distribution at a micro-scale. International Journal of Geographical Information Science,2000, 14(8) : 815-832.
8Wilson J P, Gallant J C. Terrain Analysis: Principles and Applications. John Wiley and Sons, 2000.
9Warren S D, Hohmann M G, Auerswald K,etal. An evaluation of methods to determine slope using digital elevation data. Catena, 2004, 58(3) : 215-233.
10Chaubey I, Cotter A S, Costello T A, et al. Effect of DEM data resolution on SWAT output uncertainty. Hydrological Processes, 2005, 19(3):621-628.
