Digital Signal Processing


Improved Methodology for Computing Coastal Upwelling Indices from Satellite Data

Authors: A. N. Serebrennikov

The article discusses an improved methodology for determining coastal upwelling indices from satellite maps of sea surface temperature and near-surface wind. The main difference of this technique is the determination of upwelling parameters by monthly climatic masks. The algorithm for choosing monthly climate masks is considered in detail. The substantiation of the choice of the region remote from upwelling waters in the open sea is given for calculating the thermal upwelling index and its modifications. In addition to the generally accepted upwelling indices (thermal and Ekman), new indices have been introduced: cumulative and apparent upwelling power, allowing to take into account the upwelling surface area. The technique is considered on the example of the Canary Upwelling. This technique allows you to determine the boundaries of upwelling in each climate month, and therefore, more accurately calculate its indices and environmental parameters located in the upwelling region (surface wind, sea level, geostrophic current, etc.)

Comments: 5 Pages.

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Submission history

[v1] 2019-11-24 07:36:56

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