DOI: 10.1002/2014GL060606
论文题名: The role of wind in the near field and midfield of a river plume
作者: Kakoulaki G. ; Macdonald D. ; Horner-Devine A.R.
刊名: Geophysical Research Letters
ISSN: 0094-9941
EISSN: 1944-9672
出版年: 2014
卷: 41, 期: 14 起始页码: 5132
结束页码: 5138
语种: 英语
英文关键词: drifters
; Merrimack River
; mid-field
; near-field
; river plume
; wind
Scopus关键词: Earth sciences
; Geophysics
; Wind
; drifters
; Merrimack River
; Mid-field
; Near-field
; River plume
; Rivers
; discharge
; drift behavior
; momentum
; river flow
; river plume
; timescale
; trajectory
; wind field
; wind velocity
; Merrimack River
; United States
英文摘要: The role of wind in the near-field and midfield regions of the Merrimack River plume is quantified using observations from surface drifters released near the river mouth during ebb tide in 2009, 2010, and 2011 under a range of wind and river discharge conditions. Comparison of momentum balance terms and analysis of plume trajectories suggests that the plume is sensitive to wind direction for wind speeds >4 m s-1 in all regions of the plume, including the near field, where wind influence has typically been considered second order. Intermediate ranges (4-12 km) were more strongly influenced by the wind than the near field (0-4 km). However, the influence of the instantaneous wind diminished farther from the mouth, presumably, due to the growing importance of longer time scale process (i.e., Ekman transport). The plume was less sensitive to cross-shore winds than alongshore winds, particularly near the river mouth, where momentum dominates. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904843745&doi=10.1002%2f2014GL060606&partnerID=40&md5=a20930fc331827c2c135734c22e573d8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7205
Appears in Collections: 气候减缓与适应
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作者单位: Department of Estuarine and Ocean Sciences, School for Marine Science and Technology, University of Massachusetts Dartmouth, Dartmouth, MA, United States
Recommended Citation:
Kakoulaki G.,Macdonald D.,Horner-Devine A.R.. The role of wind in the near field and midfield of a river plume[J]. Geophysical Research Letters,2014-01-01,41(14).