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Detection of a weak meddy-like anomaly from high-resolution satellite SST maps
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AuthorsEmelianov, M. (Mikhail); Claret, M.; Fraile-Nuez, E. (Eugenio); Pastor, M.; Laiz, M.; Salvador, J.; Pelegrí-Llopart, J.L. (José Luis); Turiel, A.
Despite the considerable impact of meddies on climate through the long-distance transport of properties, a consistent observation of meddy generation and propagation in the ocean is rather elusive. Meddies propagate at about 1000 m below the ocean surface, so satellite sensors are not able to detect them directly and finding them in the open ocean is more fortuitous than intentional. However, a consistent census of meddies and their paths is required in order to gain knowledge about their role in transporting properties such as heat and salt. In this paper we propose a new methodology for processing high-resolution sea surface temperature maps in order to detect meddy-like anomalies in the open ocean on a near-real-time basis. We present an example of detection, involving an atypical meddy-like anomaly that was confirmed as such by in situ measurements.