DOI: 10.1002/grl.50666
论文题名: Statistical mechanics of wind wave-induced erosion in shallow tidal basins: Inferences from the Venice Lagoon
作者: D'Alpaos A. ; Carniello L. ; Rinaldo A.
刊名: Geophysical Research Letters
ISSN: 0094-8822
EISSN: 1944-8553
出版年: 2013
卷: 40, 期: 13 起始页码: 3402
结束页码: 3407
语种: 英语
英文关键词: hydrology
; sediment resuspension
; tidal flats
; tidal morphodynamics
; wind waves
Scopus关键词: Hydrodynamic circulations
; Marked Poisson process
; Morphodynamics
; Resuspension events
; Sediment re suspensions
; Theoretical framework
; Tidal flat
; Wind wave
; Hydrology
; Ocean currents
; Poisson distribution
; Statistical mechanics
; Tides
; Wave effects
; Wetlands
; Erosion
; hydrodynamics
; lagoon
; Monte Carlo analysis
; morphodynamics
; Poisson ratio
; quantitative analysis
; resuspension
; saltmarsh
; subtidal environment
; tidal flat
; wind erosion
; wind wave
; Italy
; Veneto
; Venezia [Veneto]
; Venice Lagoon
英文摘要: Wind wave-induced erosional effects are among the chief landscape-forming processes in tidal biomorphodynamics. Wave-driven bottom erosion, in fact, controls the equilibrium elevation and dynamics of subtidal and tidal flat surfaces, and the impact of waves against salt marsh margins influences their stability. The relevance of predictive studies projecting wind wave patterns in space and time is thus notable especially in view of the limited insight gained so far. Here we have employed a complete, coupled finite element model accounting for the role of wind waves and tidal currents on the hydrodynamic circulation in shallow basins to analyze the characteristics of combined current- and wave-induced exceedances in bottom shear stress over a given threshold for erosion. The results of our analyses from the Venice Lagoon suggest that wind wave-induced resuspension events can be modeled as a marked Poisson process, thus allowing one to set up a theoretical framework which can be used to model wind wave effects through the use of Monte Carlo realizations. This bears important consequences for quantitative analyses of the long-term biomorphodynamic evolution of tidal landscapes. Key Points Wind wave-induced resuspensions can be modeled as marked Poisson processes Interarrival time, intensity & duration of wind-wave erosion are space dependent Our results bear significant practical implications on tidal morphodynamics ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880765727&doi=10.1002%2fgrl.50666&partnerID=40&md5=f15225383e6e4368f8229d0068e5b912
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6086
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geosciences, University of Padova, Padua, Italy
Recommended Citation:
D'Alpaos A.,Carniello L.,Rinaldo A.. Statistical mechanics of wind wave-induced erosion in shallow tidal basins: Inferences from the Venice Lagoon[J]. Geophysical Research Letters,2013-01-01,40(13).