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Symmetry and asymmetry of water ages in a one-dimensional flow Deleersnijder, E.; Delhez, E.J.M. (2004). Symmetry and asymmetry of water ages in a one-dimensional flow. J. Mar. Syst. 48(1-4): 61-66. https://dx.doi.org/10.1016/j.jmarsys.2003.07.002 In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573 Ook verschenen in: Delhez, E.J.M.; Deleersnijder, E.; Rixen, M. (2004). Tracer methods in geophysical fluid dynamics. Journal of Marine Systems, 48(1-4). Elsevier: Amsterdam. 1-194 pp., meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 114371 [ download pdf ]

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Trefwoorden

Age Aging Tracers Marien/Kust

Author keywords

age; age of seawater; ageing; tracer

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Auteurs		Top
Deleersnijder, E. Delhez, E.J.M.

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Abstract

Hall and Haine [J. Mar. Syst., in press] briefly addressed the problem of estimating the age of irreducible fluid elements or water parcels in a one-dimensional flow with constant velocity and diffusivity. Herein further developments are achieved on this subject. The age of every water parcel is set to zero at the moment it passes through the point x=0, where x is an appropriate space coordinate. As time progresses, the age of the water is seen to increase unboundedly upstream of the point x=0, and tend to the steady-state value |x/u| downstream of the point x=0, where u is the water velocity. By contrast, the age of the water parcels that have touched at least once the point x=0 is symmetric with respect to the point x=0 is smaller than the water age at any time and position, and tends to |x/u| as time progresses. Asymptotic expansions are derived for large times.

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