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[1]LIU Hong-yan,YANG Qin-ke,NIU Liang,et al.Relationships between DEM-derived Slope and Horizontal Resolution[J].Research of Soil and Water Conservation,2010,17(04):34-37.

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Relationships between DEM-derived Slope and Horizontal Resolution

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 04 Page number: 34-37 Column: Public date: 2010-08-20

Title:: Relationships between DEM-derived Slope and Horizontal Resolution

Author(s):: LIU Hong-yan¹, YANG Qin-ke^2,3, NIU Liang², WANG Chun-mei³, LI Jun¹; 1. College of Resources and Environment, Northwestern A&F University, Yangling, Shaanxi 712100, China;
2. College of Urban and Environmental Science, Northwest University, Xi’an 710069, China;
3. Institute of Soil and Water Conservation, Chinese Academy of Sciences And Ministry of Water Resources, Yangling, Shaanxi 712100, China

Keywords:: DEM; terrain analysis; resolution; topographic feature point

CLC:: S157.1;TP79

DOI:: -

Abstract:: Taking Xiannangou watershed as the test area,this paper studied the relationships between DEM-derived slope and horizontal resolution by using terrain analysis and statistical method.The main conclusions are as follows: with DEM resolution decreasing,mean slope decreases; slope at single point shows uncertainty; slope at edgeline decreases sharply,slope at borderline and streamline decreases slowly.Slope at negative terrain decreases more sharply than positive terrain.

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