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Partial ages: diagnosing transport processes by means of multiple clocks

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Mouchet, Anne [LSCE - ULg] Cornaton, Fabien [DHI - WASY gmbh] Deleersnijder, Eric [UCL] Delhez, Eric M. [ULg]

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, www.​climate.​be/​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.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2016
Language Anglais
Journal information "Ocean Dynamics : theoretical, computational oceanography and monitoring" - Vol. 66, no.3, p. 367-386 (2016)
Peer reviewed yes
Publisher Springer (Heidelberg)
issn 1616-7341
e-issn 1616-7228
Publication status Publié
Affiliation UCL - SST/IMMC/MEMA - Applied mechanics and mathematics
Links
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Bibliographic reference Mouchet, Anne ; Cornaton, Fabien ; Deleersnijder, Eric ; Delhez, Eric M.. Partial ages: diagnosing transport processes by means of multiple clocks. In: Ocean Dynamics : theoretical, computational oceanography and monitoring, Vol. 66, no.3, p. 367-386 (2016)
Permanent URL http://hdl.handle.net/2078.1/172364