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Identification of patterns over regional scales using self-organising maps on images from marine modelling outputs

conference contribution
posted on 2023-05-23, 07:12 authored by de Souza Jr, PA, Williams, RN, Jones, EM
The Self-Organizing Feature Map (or SOM) has been used to analyse a dataset consisting of oceanographic modelling output images, in order to identify patterns in the hydrodynamic behaviour of the south-east Tasmanian (SETas) coastal region over a 360-day period between August 2009 and August 2010. The SOM provided a visualization of the dataset, distributed across a 5x7 two-dimensional grid, which enabled an oceanographer to identify significant hydrodynamic patterns being exhibited by the SETas region over that period. Four prototype (typical) states were identified by the oceanographer, who then interpreted each of these states in terms of the major ocean currents which impact on the region; the East Australian Current and the Zeehan Current. These results indicate that SOM analysis can be a useful technique for identifying patterns in large oceanographic datasets, such as those now being provided by remote sensing, ocean modelling and marine sensor network technologies.

History

Publication title

Proceedings of the 2012 International Conference on Digital Image Computing Techniques and Applications (DICTA)

Editors

G West and P Kovesi

Pagination

1-6

ISBN

978-1-4673-2179-2

Department/School

School of Information and Communication Technology

Publisher

IEEE eXpress Conference Publishing

Place of publication

Piscataway, NJ USA

Event title

2012 International Conference on Digital Image Computing Techniques and Applications (DICTA)

Event Venue

Perth, Australia

Date of Event (Start Date)

2012-12-03

Date of Event (End Date)

2012-12-05

Rights statement

Copyright 2012 IEEE

Repository Status

  • Restricted

Socio-economic Objectives

Oceanic processes (excl. in the Antarctic and Southern Ocean)

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