ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2018, Vol. 15, No. 5, pp. 44-51

An improved technique for the retrieval of coastal upwelling indices from satellite data

A.N. Serebrennikov 1 
1 Institute of Natural and Technical Systems RAS, Sevastopol, Russia
Accepted: 23.08.2018
DOI: 10.21046/2070-7401-2018-15-5-44-51
The paper considers an improved technique for the retrieval of coastal upwelling indices from satellite maps of sea surface temperature and near-surface wind. The main distinguishing feature of this technique is the determination of parameters of upwelling by monthly climatic masks. The algorithm for selecting monthly climatic masks is considered in detail. A justification of the choice of an area remote from the upwelling waters in the open sea for calculation of the thermal index of upwelling and its modifications is given. In addition to the generally accepted upwelling indices (thermal and Ekman), new indices were introduced: the cumulative and visible upwelling power, that allow to consider the surface area of upwelled waters. The technique is considered by the example of the Canary upwelling. This technique allows defining upwelling borders in each climatic month, and therefore more precisely calculate its indices and parameters of the environs of the upwelled area (near-surface wind, sea level, geostrophic current, etc.).
Keywords: thermal upwelling index, Ekman transport, Ekman pump, sea surface temperature, near-surface wind
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