Critical flow-storm approach to total maximum daily load (TMDL) development:an analytical conceptual model

作     者：Harry X.ZHANG Shaw L.YU 

作者机构：CH2M HILL15010 Conference Center DriveChantillyVA 20151–3801USA Department of Civil and Environmental EngineeringThornton HallUniversity of VirginiaCharlottesvilleVA 22904–4742USA 

出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)

年 卷 期：2008年第2卷第3期

页      面：267-273页

核心收录：

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：This work was supported in part by the Virginia Department of Environmental Quality and the Virginia Environmental Endowment Richmond Virginia USA 

主　　题：critical condition critical flow-storm(CFS)approach total maximum daily load(TMDL) conceptual model derived analytical model nonpoint source pollution 

摘      要：One of the key challenges in the total maximum daily load(TMDL)development process is how to define the critical condition for a receiving *** main concern in using a continuous simulation approach is the absence of any guarantee that the most critical condition will be captured during the selected representative hydrologic period,given the scarcity of long-term continuous *** objectives of this paper are to clearly address the critical condition in the TMDL development process and to compare continuous and event-based approaches in defining critical condition during TMDL development for a waterbody impacted by both point and nonpoint source pollution.A practical,event-based critical flow-storm(CFS)approach was developed to explicitly addresses the critical condition as a combination of a low stream flow and a storm event of a selected magnitude,both having certain frequencies of *** paper illustrated the CFS concept and provided its theoretical basis using a derived analytical conceptual *** CFS approach clearly defined a critical condition,obtained reasonable results and could be considered as an alternative method in TMDL development.