DOI: 10.1002/grl.50194
论文题名: Tidal variations of turbulence at a spring discharging to a tropical estuary
作者: Expósito-Díaz G. ; Monreal-Gómez M.A. ; Valle-Levinson A. ; Salas-De-León D.A.
刊名: Geophysical Research Letters
ISSN: 0094-9265
EISSN: 1944-8996
出版年: 2013
卷: 40, 期: 5 起始页码: 898
结束页码: 903
语种: 英语
英文关键词: Mexican Caribbean
; Reynolds stress
; spring discharging
; turbulence
Scopus关键词: Mexican Caribbean
; Near-bottom temperature
; Reynolds stress
; Submarine groundwater discharge
; Turbulence properties
; Turbulent kinetic energy
; Velocity profiles
; Vertical eddy viscosities
; Discharge (fluid mechanics)
; Groundwater
; Hydrostatic pressure
; Kinetic energy
; Kinetics
; Reynolds number
; Shear flow
; Tides
; Turbulence
; brackish water
; estuarine dynamics
; kinetic energy
; tidal modeling
; tropical environment
; underwater environment
; wave velocity
; Atlantic Ocean
; Caribbean Sea
; Mexico [North America]
英文摘要: Measurements of velocity profiles and near-bottom temperature and pressure were used to determine turbulence properties at a point-source submarine groundwater discharge (brackish) in a tropical estuary. The turbulence properties estimated were Reynolds stress, turbulent kinetic energy production, and vertical eddy viscosity. Results showed a dominance of the zonal Reynolds stress component with maximum of 0.0025 m2 s-2 (2.5 Pa) at low tide. Turbulent kinetic energy production and vertical eddy viscosity values also reached maxima (0.98 W m-3 and ∼10-1 m2 s-1, respectively) at low tides. Discharge of brackish water increased at low tides, relative to high tides, as indicated by vertical mean velocity and by mean velocity shear. These maxima were caused by decreasing hydrostatic pressure and likely increasing hydraulic head at the site of discharge. Increased turbulence at low tides was one order of magnitude larger than the turbulence caused elsewhere by tidal flows up to ∼2.5 m s -1. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876805755&doi=10.1002%2fgrl.50194&partnerID=40&md5=a0c51e7fb326821e5163a2cea6042120
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6529
Appears in Collections: 气候减缓与适应
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作者单位: Posgrado en Ciencias Del Mar y Limnología, Universidad Nacional Autónoma de México, Cd. Universitaria, Circuito Exterior s/n, Del. Coyoacán, 04510, México D.F., Mexico
Recommended Citation:
Expósito-Díaz G.,Monreal-Gómez M.A.,Valle-Levinson A.,et al. Tidal variations of turbulence at a spring discharging to a tropical estuary[J]. Geophysical Research Letters,2013-01-01,40(5).