Chlorofluorocarbons as Time Dependent Tracers in the Ocean
نویسندگان
چکیده
منابع مشابه
Optimization with the time-dependent Navier-Stokes equations as constraints
In this paper, optimal distributed control of the time-dependent Navier-Stokes equations is considered. The control problem involves the minimization of a measure of the distance between the velocity field and a given target velocity field. A mixed numerical method involving a quasi-Newton algorithm, a novel calculation of the gradients and an inhomogeneous Navier-Stokes solver, to find the opt...
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Observations of transient tracers such as tritium and helium-3 ( He) are frequently combined to construct `age-likea quantities generally interpreted to represent time elapsed since a #uid parcel was last at the surface. In a turbulent (`di!usivea) environment such as the ocean, we must regard the #uid parcel as being composed of material #uid elements that have spent di!erent lengths of time s...
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Chemical tracers can be used to assess the simulated circulation in ocean models. Tracers that have been used in this context include tritium, chlorofluorocarbons, natural and bomb-produced radiocarbon, and to a lesser extent, oxygen, silicate, phosphate, isotopes of organic and inorganic carbon compounds, and certain noble gases (e.g., helium and argon). This paper reviews the use of chemical ...
متن کاملoptimization with the time-dependent navier-stokes equations as constraints
in this paper, optimal distributed control of the time-dependent navier-stokes equations is considered. the control problem involves the minimization of a measure of the distance between the velocity field and a given target velocity field. a mixed numerical method involving a quasi-newton algorithm, a novel calculation of the gradients and an inhomogeneous navier-stokes solver, to find the opt...
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ژورنال
عنوان ژورنال: Oceanography
سال: 1989
ISSN: 1042-8275
DOI: 10.5670/oceanog.1989.03