An efficient method for applying a differential equation to deriving the spatial distribution of specific catchment area from gridded digital elevation models

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• 作者：Cheng-Zhi Qin^a ; ^b ; ^c ; ^{qincz@lreis.ac.cn} ; Bei-Bei Ai^a ; ^c ; A-Xing Zhu^a ; ^b ; ^d ; ^e ; Jun-Zhi Liu^b ; ^e
• 关键词：Differential equation ; Gridded digital elevation model (DEM) ; Parallel computing ; Specific catchment area (SCA) ; Parameter sensitivity
• 刊名：Computers & Geosciences
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：100
• 期：Complete
• 页码：94-102
• 全文大小：1262 K
• 卷排序：100

文摘

A differential equation can be used to derive the spatial distribution of SCA. Parallel computing was used to speed the compute-intensive calculation. The proposed method obtained a much lower error than conventional algorithm. The effects of main factors on the proposed method were analyzed.