Feature tracking on the unit-sphere
Hodges, K. I. (1995) Feature tracking on the unit-sphere. Monthly Weather Review, 123 (12). pp. 3458-3465. ISSN 0027-0644
To link to this article DOI: 10.1175/1520-0493(1995)123<3458:FTOTUS>2.0.CO;2
Techniques used in a previous study of the objective identification and tracking of meteorological features in model data are extended to the unit sphere. An alternative feature detection scheme is described based on cubic interpolation for the sphere and local maximization. The extension of the tracking technique, used in the previous study, to the unit sphere is described. An example of the application of these techniques to a global relative vorticity field from a model integration are presented and discussed.