A micro focus with macro impact: Exploration of initial abstraction coefficient ratio (λ) in Soil Conservation Curve Number (CN) methodology

8th International Symposium of the Digital Earth

地球科学;计算机科学

Ling, L.^1 ; Yusop, Z.^1

Water Research Alliance, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia^1

关键词: Curve numbers;    Field data;    Initial abstraction coefficients;    Micro focus;    Soil conservation services;    United states department of agricultures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/18/1/012121/pdf
DOI  :  10.1088/1755-1315/18/1/012121

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Researchers started to cross examine United States Department of Agriculture (USDA) Soil Conservation Services (SCS) Curve Number (CN) methodology after the technique produced inconsistent results throughout the world. More field data from recent decades were leaning against the assumption of the initial abstraction coefficient ratio value proposed by SCS in 1954. Physiographic conditions were identified as vital influencing factors to be considered under this methodology while practitioners of this method are encouraged to validate and derive regional specific relationship and employ the method with caution.