Impact of DEM Resolution and Spatial Scale: Analysis of Influence Factors and Parameters on Physically Based Distributed Model

Table 1

Information and statistics of the nested catchments.

Name	DEM resolution	Channel threshold	Area (km^2) (ArcGIS)	Total grids	Water systems numbers
Luanchuan	250	60	347.25	5556	53
	500	15	342.75	1371	44
	1000	35	341	341	6
	1000	7.5	341	341	27
Tantou	1000	35	1839	1839	31
Dongwan	1000	35	2569	2569	40