A general framework for using the rate law to simulate morphological response to disturbance in the fluvial system
A general framework for using the rate law to simulate morphological response to disturbance in the fluvial system
复制标题
使用速率定律模拟河流系统对扰动的形态响应的通用框架
DOI：
10.1177/0309133312436569
复制
发表时间：
2012-03
期刊：
影响因子：
--
通讯作者：
Colin Reginald Thorne
中科院分区：
文献类型：
--
作者：
Baosheng Wu;Shan Zheng;Colin Reginald Thorne
提出了一个总体框架建模的形态响应扰动的基础上的原则，即在冲积河道的形态响应率最初是高的，然后随着时间的推移，系统放松以下的干扰减少。该框架包括三个形态响应模型，每个模型都是从基本速率定律发展而来的，该定律具有指数衰减函数的形式。这些模型考虑的可能性，河流系统的特征行为，如延迟响应和/或累积效应，可能会影响形态响应，使它们能够代表松弛路径和时间的形态响应变量的范围内，无论其初始状态。为了测试它们的效用，在框架中的模型被应用到模拟序列的地貌响应观察到的中断在选定的河流形态扰动，调整和恢复有据可查的历史。结果表明，在一般框架中的模型可以成功地模拟在一系列不同的情况下，在河流系统的形态响应的时间和空间格局，同时也表明其可靠性可以进一步提高。
A general framework for modelling morphological responses to perturbation is proposed, based on the underpinning principle that the rates of morphological response in alluvial channels are initially high and then decrease through time as the system relaxes following disturbance. The framework includes three morphological response models, each developed from the fundamental rate law, which has the form of an exponential decay function. These models consider the possibility that characteristic behaviours of the fluvial system, such as delayed response and/or cumulative effects, may affect morphological responses, making them capable of representing relaxation paths and times for a range of morphological response variables, whatever their initial states. To test their utility, the models in the framework were applied to simulate the sequence of geomorphological responses to disruption observed in selected rivers with well-documented histories of morphological perturbation, adjustment and recovery. The results demonstrate that the models in the general framework can successfully simulate temporal and spatial patterns of morphological response in the fluvial system under a range of different circumstances, while also indicating how their reliability could be further improved.
登录
查看更多内容
影响因子：
--
作者：
Baosheng Wu;Guangqian Wang;Zhaoyin Wang;J. Xia
通讯作者：
Baosheng Wu;Guangqian Wang;Zhaoyin Wang;J. Xia
影响因子：
15.9
作者：
W. Graf
通讯作者：
W. Graf
DOI：
10.1111/j.1467-8306.2003.09304001.x
发表时间：
2003-12-01
期刊：
ANNALS OF THE ASSOCIATION OF AMERICAN GEOGRAPHERS
影响因子：
--
作者：
Urban, MA;Rhoads, BL
通讯作者：
Rhoads, BL
DOI：
10.3133/pp1286
发表时间：
1984
期刊：
--
影响因子：
--
作者：
G. P. Williams;M. Wolman
通讯作者：
G. P. Williams;M. Wolman
影响因子：
2.4
作者：
Claudia A. Leon;P. Julien;D. Baird
通讯作者：
Claudia A. Leon;P. Julien;D. Baird