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A method for tracking individual planetary waves in remotely sensed data

A method for tracking individual planetary waves in remotely sensed data
A method for tracking individual planetary waves in remotely sensed data
We describe a methodology for tracking individual planetary waves in longitude-time plots of satellite data, based on fitting an elementary wave shape model to subsets of the data by maximum likelihood, then reconstructing the trajectory and evolution of every single wave (where for ‘single wave’ we mean an individual positive or negative westward propagating anomaly) by joining the elementary waves according to their similarity. We then illustrate the potential of the methodology with an example at 34°N in the Atlantic Ocean, and its adaptability to different cases with a second example on eastward-propagating Kelvin waves in the equatorial Pacific. Although the examples given use sea surface height anomaly data, the technique lends itself to be applied to any space-time plot of any dataset displaying propagation, and in particular to sea surface temperature data.
Satellite-Based Ocean Forecasting, SOFT, planetary waves, ocean eddies, westward-propagating features, kelvin waves, satellite altimetry, TOPEX/POSEIDON, feature tracking
0196-2892
159-166
Cipollini, P.
276e356a-f29e-4192-98b3-9340b491dab8
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
Colombo, S.
7fdfccdd-5890-487e-8c25-ad42f78eadb3
Cipollini, P.
276e356a-f29e-4192-98b3-9340b491dab8
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
Colombo, S.
7fdfccdd-5890-487e-8c25-ad42f78eadb3

Cipollini, P., Challenor, P.G. and Colombo, S. (2006) A method for tracking individual planetary waves in remotely sensed data. IEEE Transactions on Geoscience and Remote Sensing, 44 (1), 159-166. (doi:10.1109/TGRS.2005.859355).

Record type: Article

Abstract

We describe a methodology for tracking individual planetary waves in longitude-time plots of satellite data, based on fitting an elementary wave shape model to subsets of the data by maximum likelihood, then reconstructing the trajectory and evolution of every single wave (where for ‘single wave’ we mean an individual positive or negative westward propagating anomaly) by joining the elementary waves according to their similarity. We then illustrate the potential of the methodology with an example at 34°N in the Atlantic Ocean, and its adaptability to different cases with a second example on eastward-propagating Kelvin waves in the equatorial Pacific. Although the examples given use sea surface height anomaly data, the technique lends itself to be applied to any space-time plot of any dataset displaying propagation, and in particular to sea surface temperature data.

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Submitted date: 19 May 2005
Published date: January 2006
Additional Information: This work was funded by the Energy, Environment and Sustainable Development EU Project SOFT (Satellite-based Ocean ForecasTing) - contract number EVK3-CT-2000-00028
Keywords: Satellite-Based Ocean Forecasting, SOFT, planetary waves, ocean eddies, westward-propagating features, kelvin waves, satellite altimetry, TOPEX/POSEIDON, feature tracking

Identifiers

Local EPrints ID: 15759
URI: http://eprints.soton.ac.uk/id/eprint/15759
ISSN: 0196-2892
PURE UUID: 9b5e7ba5-8aad-46bc-9f37-cb8e005bc345

Catalogue record

Date deposited: 27 May 2005
Last modified: 04 Nov 2019 19:20

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Contributors

Author: P. Cipollini
Author: P.G. Challenor
Author: S. Colombo

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