DOI: 10.1002/2014GL060517
论文题名: Seasonal variability in M2 and M4 tidal constituents and its implications for the coastal residual sediment transport
作者: Gräwe U. ; Burchard H. ; Müller M. ; Schuttelaars H.M.
刊名: Geophysical Research Letters
ISSN: 0094-9888
EISSN: 1944-9619
出版年: 2014
卷: 41, 期: 15 起始页码: 5563
结束页码: 5570
语种: 英语
英文关键词: seasonal tides
; sediment transport
Scopus关键词: Sediment transport
; Surface waters
; Tides
; Annual cycle
; Keypoints
; Observational data
; Phase variation
; Sea surface elevation
; Seasonal variability
; Thermal structure
; Water columns
; North Sea
; Sedimentation
; amplitude
; annual cycle
; estimation method
; seasonal variation
; sediment transport
; thermal structure
; thermocline
; tide gauge
; water column
; winter
; Atlantic Ocean
; North Sea
英文摘要: We use an observational data set of tidal gauges in the North Sea to investigate the annual cycle of the M2 and M4 amplitudes and phases. The sea surface elevation amplitude of the M2 can vary by 8-10% and the M4 amplitude by 12-30% over the course of the year, with larger amplitudes in summer. The annual phase variations are in the range of 3-15°. The reason for these variations is the thermal structure of the North Sea: a well-developed thermocline in summer and well-mixed water column during winter. The interaction of the M2 and M4 tides is one of the main drivers of the residual sediment transport. Using an analytical model, the seasonal variability in residual sediment transport is estimated. This transport can vary by 10-50% over the course of the year. These variations are mainly related to the seasonal variability of the M2 and M 4 amplitudes. Key Points Amplitude of the M2 can vary by 8-10% and the M4 amplitude by 12-30% Annual phase variations of M2 and M4 are in the range of 3-15° Residual sediment transport can vary by 10-50% © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905298052&doi=10.1002%2f2014GL060517&partnerID=40&md5=30f81e990e48b38c36e890ff6e55b580
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7152
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physical Oceanography and Instrumentation, Leibniz Institute for Baltic Sea Research, Rostock, Germany
Recommended Citation:
Gräwe U.,Burchard H.,Müller M.,et al. Seasonal variability in M2 and M4 tidal constituents and its implications for the coastal residual sediment transport[J]. Geophysical Research Letters,2014-01-01,41(15).