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Partial ages: diagnosing transport processes by means of multiple clocks
Mouchet, A.; Cornaton, F.; Deleersnijder, E.; Delhez, E.J.M. (2016). Partial ages: diagnosing transport processes by means of multiple clocks. Ocean Dynamics 66(3): 367-386.
In: Ocean Dynamics. Springer-Verlag: Berlin; Heidelberg; New York. ISSN 1616-7341; e-ISSN 1616-7228, more
Peer reviewed article  

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Author keywords
    Age; Advection-diffusion; Tracer methods

Authors  Top 
  • Mouchet, A., more
  • Cornaton, F.
  • Deleersnijder, E., more
  • Delhez, E.J.M., more

    The concept of age is widely used to quantify the transport rate of tracers - or pollutants - in the environment. The age focuses only on the time taken to reach a given location and disregards other aspects of the path followed by the tracer parcel. To keep track of the subregions visited by the tracer parcel along this path, partial ages are defined as the time spent in the different subregions. Partial ages can be computed in an Eulerian framework in much the same way as the usual age by extending the Constituent oriented Age and Residence Time theory (CART, In addition to the derivation of theoretical results and properties of partial ages, applications to a 1D model with lateral/transient storage, to the 1D advection-diffusion equation and to the diagnosis of the ventilation of the deep ocean are provided. They demonstrate the versatility of the concept of partial age and the potential new insights that can be gained with it.

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