期刊论文

Li, Chang

英文

Computers & Geosciences

0098-3004

2018

114

117-129

10.1016/j.cageo.2018.01.002

This study is supported by the National Natural Science Foundation of China (grant nos. 41771493 and 41101407); the Natural Science Foundation of Hubei Province (grant nos. 2014CFB377 and 2010CDZ005), China; Wuhan Youth Science and technology plan (Grant No. 2016070204010137) and self-determined research funds of CCNU from the colleges’ basic research and operation of MOE (grant nos. CCNU15A02001). We also are grateful for the comments and contributions of the anonymous reviewers and the members of the editorial team.

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The accuracy of earthwork calculations that compute terrain volume is critical to digital terrain analysis (DTA). The uncertainties in volume calculations (VCs) based on a DEM are primarily related to three factors: 1) model error (ME), which is caused by an adopted algorithm for a VC model, 2) discrete error (DE), which is usually caused by DEM resolution and terrain complexity, and 3) propagation error (PE), which is caused by the variables’ error. Based on these factors, the uncertainty modelling and analysis of VCs based on a regular grid ...