Double-diffussion processes and LIW characteristics in the Alboran Sea
1998
Emelianov, Mikhail | García-Ladona, Emilio | Font, Jordi
35e Congrès de la Commission Internationale pour l'Exploration Scientifique de la mer Méditerranée (CIESM) - 35th Mediterranean Science Commission Congress, Dubrovnik, Croatie.-- 2 pages, 4 figures
显示更多 [+] 显示较少 [-]The interaction of warm and salty Levantine Intermediate Water (LIW) with colder and fresher environmental water masses in the Alboran basin (western Mediterranean) créâtes favourable conditions for small-scale mixing processes. The présent analysis is based on the 134 CTD profiles gathered in the Alboran Sea during the Spanish expédition "FE-92" in autumn 1992. The values of the Turner angle calculated for the layers above, below and inside the LIW core, showed the prédominance of a diffusive régime on the upper limit of LIW. and a sait fingering on its lower limit in few cases in the western part of the région. The analysis of the spatial distribution of small-scale processes activity, calculated using several statistical properties of the termohaline profiles allows to distinguish the areas of prédominance of dia- or isopycnal régime in the small-scale mixing processes. The spatial distribution of diapycnal processes in the upper layer of LIW qualitatively correlates with the vertical velocity distribution, associated with mesoscale features of circulation, as diagnosed by other authors through a primitive équation model with mesoscale resolution
显示更多 [+] 显示较少 [-]Peer reviewed
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