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Detection of a weak meddy-like anomaly from high-resolution satellite SST maps
Mikhail Emelianov, Mariona Claret, Eugenio Fraile-Nuez, Maria Pastor, Irene Laiz, Joaquín Salvador, Josep L. Pelegríand Antonio Turiel

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.

Keywords: meddy, satellite image, vorticity, thermohaline anomaly, observation in situ
Contents of this volume Sci. Mar. 76S1 : 229-234 Back PDF
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