Hi,

Here you can find a Processing sketch tha plots the ocean surface drift forecast for the next 3 days, based on ocean model currents and meteorological forcing. It is useful to predict oil spill drift or just material trapped near the surface. This is an example of how Processing can help Operational Oceanography ;-)
It takes a little bit to load the applet.

http://centolo.co.ieo.es:8080/alavai_en/index.html

And the introductory video of this application:

http://www.youtube.com/watch?v=MZJFnWjX1yc

Kind regards,
Pablo Otero