Modeling circulation and hydrodynamic connectivity in bras d'or lakes using nested-grid approach
文献类型：期刊论文
| 作者 | Yang, Bo2,3,4; Sheng, Jinyu1; Hatcher, Bruce G.2 |
| 刊名 | Journal of coastal research
 |
| 出版日期 | 2008 |
| 页码 | 57-70 |
| 关键词 | Estuarine circulation model Tides Wind Freshwater runoff Particle tracking Retention dispersion Transition matrix Hydrodynamic connectivity |
| ISSN号 | 0749-0208 |
| 通讯作者 | Sheng, jinyu(jinyu.sheng@dal.ca) |
| 英文摘要 | The bras d'or lakes (bdol) is a land-locked estuarine system in central cape breton island. nova scotia, canada. recent outbreaks of waterborne diseases at several sites in the bdol have decimated shellfish populations and threaten its unusual biodiversity. assessing the potential for spread of invasive pathogens is a priority for management. a nested-grid hydrodynamic modeling system is used to simulate the three-dimensional (3d) circulation and temperature-salinity distributions for summer 1974, when currents and hydrographic measurements suitable for model calibration were made at several locations. the modeled 3d velocity fields are then used in eulcrian-lagrangian transform to study the spatial patterns of retention and dispersion of passive particles, as a proxy for the spread of disease by water flow its the estuary. probabilities of transfers (connectivity) among 10 sub-domains of the bdol are calculated from the statistics of the 3d particle trajectories and portrayed in a transition matrix. the model results demonstrate that the hydrodynamic connectivity among the several small bays in the western portion of the bdol (ranging frons 0.1% to 13.5%) is much weaker than those among the main basins (16% to 62.4%) at monthly time scales. restriction by narrow passages between the small bays and the main basins reduce connectivity among populations and their habitats, but the effect is partially offset by density-driven flows associated with freshwater inputs at the land boundaries. the model can be used to guide epidemiological surveys and generate testable hypotheses of disease spread and species invasions within the ecosystem. |
| WOS关键词 | OCEAN ; VERSION ; GULF |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
| WOS类目 | Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000207739600006 |
| 出版者 | COASTAL EDUCATION & RESEARCH FOUNDATION |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2389795 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Sheng, Jinyu |
| 作者单位 | 1.Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada 2.Cape Breton Univ, Bras Dor Inst Ecosyst Res, Sydney, NS B1P 6L2, Canada 3.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 4.Chinese Acad Sci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Bo,Sheng, Jinyu,Hatcher, Bruce G.. Modeling circulation and hydrodynamic connectivity in bras d'or lakes using nested-grid approach[J]. Journal of coastal research,2008:57-70. |
| APA | Yang, Bo,Sheng, Jinyu,&Hatcher, Bruce G..(2008).Modeling circulation and hydrodynamic connectivity in bras d'or lakes using nested-grid approach.Journal of coastal research,57-70. |
| MLA | Yang, Bo,et al."Modeling circulation and hydrodynamic connectivity in bras d'or lakes using nested-grid approach".Journal of coastal research (2008):57-70. |
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来源：中国科学院大学
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