地理学报 ›› 2014, Vol. 69 ›› Issue (7): 926-932.doi: 10.11821/dlxb201407005
收稿日期:
2014-04-20
修回日期:
2014-05-26
出版日期:
2014-07-20
发布日期:
2014-09-12
作者简介:
作者简介:李军 (1968-), 男, 辽宁大连人, 博士生, 主要从事水文水资源研究。E-mail:
基金资助:
Jun Li(), Changming LIU(
), Zhonggen WANG, Kang LIANG
Received:
2014-04-20
Revised:
2014-05-26
Online:
2014-07-20
Published:
2014-09-12
Supported by:
摘要:
产流计算是水文模拟的关键环节之一。在一定的空间尺度上,产流是一个十分复杂的非线性过程。目前在不同水文模型中,产流计算并不唯一。本文通过对比同时期提出的LCM模型与SCS模型,基于理论及数值分析发现:(1) SCS模型在其比例相等假设下,是LCM模型的一种简单线性化表示。LCM模型更加反映流域宏观产流的非线性。(2) LCM模型参数与SCS模型参数存在严格的数学关系。LCM模型参数的确定可以利用SCS模型参数研究成果。(3) LCM模型参数很容易通过野外实验进行测定,而SCS模型参数很难实测,也可通过LCM模型参数为SCS模型参数确定提供依据。(4) SCS模型揭示了流域产流期内总降雨损失与总降雨量存在倒数线性关系,而LCM模型通过泰勒展开发现具有同样规律。
李军, 刘昌明, 王中根, 梁康. 现行普适降水入渗产流模型的比较研究:SCS与LCM[J]. 地理学报, 2014, 69(7): 926-932.
Jun Li, Changming LIU, Zhonggen WANG, Kang LIANG. Two universal runoff yield models: SCS vs. LCM[J]. Acta Geographica Sinica, 2014, 69(7): 926-932.
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