气候变化领域集成服务门户(CCPortal): A Reaction-Based River/Stream Water Quality Model: Reaction Network Decomposition and Model Application

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DOI	10.3319/TAO.2012.05.23.02(WMH)
	A Reaction-Based River/Stream Water Quality Model: Reaction Network Decomposition and Model Application
	Zhang, Fan; Yeh, Gour-Tsyh; Parker, Jack C.; Zhang, Hongbo; Shi, Xiaonan; Wang, Cheng; Gu, Ruochuan
通讯作者	Zhang, F (通讯作者)
发表日期	2012
ISSN	1017-0839
起始页码	605
结束页码	620
卷号	23 期号:5
英文摘要	This paper describes details of an automatic matrix decomposition approach for a reaction-based stream water quality model. The method yields a set of equilibrium equations, a set of kinetic-variable transport equations involving kinetic reactions only, and a set of component transport equations involving no reactions. Partial decomposition of the system of water quality constituent transport equations is performed via Gauss-Jordan column reduction of the reaction network by pivoting on equilibrium reactions to decouple equilibrium and kinetic reactions. This approach minimizes the number of partial differential advective-dispersive transport equations and enables robust numerical integration. Complete matrix decomposition by further pivoting on linearly independent kinetic reactions allows some rate equations to be formulated individually and explicitly enforces conservation of component species when component transport equations are solved. The methodology is demonstrated for a case study involving eutrophication reactions in the Des Moines River in Iowa, USA and for two hypothetical examples to illustrate the ability of the model to simulate sediment and chemical transport with both mobile and immobile water phases and with complex reaction networks involving both kinetic and equilibrium reactions.
关键词	BIOGEOCHEMICAL PROCESSES TRANSPORT RIVER SYSTEMS
英文关键词	Sediment transport; Water quality models; Rivers/streams; Chemical reactions; Chemical equilibrium/kinetics; Eutrophication
语种	英语
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Oceanography
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Oceanography
WOS记录号	WOS:000310422000013
来源期刊	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258082
推荐引用方式 GB/T 7714	Zhang, Fan,Yeh, Gour-Tsyh,Parker, Jack C.,et al. A Reaction-Based River/Stream Water Quality Model: Reaction Network Decomposition and Model Application[J]. 中国科学院青藏高原研究所,2012,23(5).
APA	Zhang, Fan.,Yeh, Gour-Tsyh.,Parker, Jack C..,Zhang, Hongbo.,Shi, Xiaonan.,...&Gu, Ruochuan.(2012).A Reaction-Based River/Stream Water Quality Model: Reaction Network Decomposition and Model Application.TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,23(5).
MLA	Zhang, Fan,et al."A Reaction-Based River/Stream Water Quality Model: Reaction Network Decomposition and Model Application".TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 23.5(2012).