Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025429 |
Analytical Solution of Advection-Dispersion Boundary Value Processes in Environmental Flows | |
Sridharan, Vamsi Krishna1,2; Hein, Andrew M.1,2 | |
2019-12-04 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:12页码:10130-10143 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The one-dimensional advection-dispersion equation with streamwise boundaries has been used to model a wide range of real-world processes including groundwater contaminant transport, atmospheric plume deposition, and the movement of planktonic organisms and migratory animals through riverine systems. Imposing boundary conditions at upstream and downstream locations complicates the analysis of this equation, and processes that require such boundary conditions are, therefore, typically modeled using approximations that are valid only under certain conditions. Approximations typically involve a simplification of the mass influx into the system, require a large separation between source and boundary, or work only in either strongly advection- or strongly dispersion-dominated systems. Here, we circumvent these limitations by providing an analytical solution to a class of advection-dispersion equations that are broadly applicable to the processes described above as well as many other physical and biological problems. Our solution makes it possible to relax the assumptions required under previous analytic approximations, making it a more flexible approach for modeling advection-dispersion processes under realistic field conditions. We show that the solution is in good agreement with random walk simulations. To illustrate the broad utility of the method, we also apply it to an empirical data set from a population of migratory fish moving through a river system in the California Central Valley and demonstrate that it describes the data more accurately than do existing methods. |
英文关键词 | advection-dispersion equation method of images environmental applications ecological applications rivers and estuaries fish movement |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500552800001 |
WOS关键词 | DIFFUSION EQUATION ; RANDOM-WALK ; MODEL ; TRANSPORT ; MOVEMENT ; MEDIA |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/223952 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA; 2.NOAA, Natl Marine Fisheries Serv, Southwest Fisheries Sci Ctr, Fisheries Ecol Div, Santa Cruz, CA 95060 USA |
推荐引用方式 GB/T 7714 | Sridharan, Vamsi Krishna,Hein, Andrew M.. Analytical Solution of Advection-Dispersion Boundary Value Processes in Environmental Flows[J]. WATER RESOURCES RESEARCH,2019,55(12):10130-10143. |
APA | Sridharan, Vamsi Krishna,&Hein, Andrew M..(2019).Analytical Solution of Advection-Dispersion Boundary Value Processes in Environmental Flows.WATER RESOURCES RESEARCH,55(12),10130-10143. |
MLA | Sridharan, Vamsi Krishna,et al."Analytical Solution of Advection-Dispersion Boundary Value Processes in Environmental Flows".WATER RESOURCES RESEARCH 55.12(2019):10130-10143. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论