DOI: 10.5194/hess-19-2605-2015
Scopus记录号: 2-s2.0-84930960379
论文题名: Surface seiches in Flathead Lake
作者: Kirillin G ; , Lorang M ; S ; , Lippmann T ; C ; , Gotschalk C ; C ; , Schimmelpfennig S
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2015
卷: 19, 期: 6 起始页码: 2605
结束页码: 2615
语种: 英语
Scopus关键词: Erosion
; Floods
; Risk perception
; Sediment transport
; Shore protection
; Surface waves
; Water waves
; Enclosed water bodies
; Fundamental modes
; Primitive equations
; Seiche oscillations
; Shoreline erosion
; Spatial characteristics
; Standing surface waves
; Two-dimensional structures
; Lakes
; amplitude
; bay
; frequency analysis
; harmonic analysis
; island
; oscillation
; river flow
; rotation
; seiche
; shoreline
; spatial distribution
; standing wave
; surface wave
; Flathead Lake
; Montana
; United States
; Kathetostoma giganteum
英文摘要: Standing surface waves or seiches are inherent hydrodynamic features of enclosed water bodies. Their two-dimensional structure is important for estimating flood risk, coastal erosion, and bottom sediment transport, and for understanding shoreline habitats and lake ecology in general. In this work, we present analysis of two-dimensional seiche characteristics in Flathead Lake, Montana, USA, a large intermountain lake known to have high seiche amplitudes. To examine spatial characteristics of different seiche modes, we used the original procedure of determining the seiche frequencies from the primitive equation model output with subsequent derivation of the spatial seiche structure at fixed frequencies akin to the tidal harmonic analysis. The proposed procedure revealed specific seiche oscillation features in Flathead Lake, including maximum surface level amplitudes of the first fundamental mode in straights around the largest island; several higher modes appearing locally in the vicinity of the river inflow; the "Helmholtz" open harbor mode, with the period approximately twice that of the longest seiche mode, generated by a large shallow bay connected to the main lake basin; and several rotating seiche modes potentially affecting the lake-wide circulation. We discuss lake management problems related to the spatial seiche distribution, such as shoreline erosion, floods, and transport of sediments and invasive species in Flathead Lake. © Author(s) 2015. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78504
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Ecohydrology, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany; University of Montana, Flathead Lake Biological Station, Polson, MT, United States; Dept. of Earth Sciences, Center for Coastal and Ocean Mapping, University of New Hampshire, Ocean, NH, United States
Recommended Citation:
Kirillin G,, Lorang M,S,et al. Surface seiches in Flathead Lake[J]. Hydrology and Earth System Sciences,2015-01-01,19(6)