This is a movie showing the drift pattern of some ocean debris (a large houser line.) We were out 1000nm north of Hawaii on a NOAA research ship. This cruise was part of a project that has also provided a small amount of funding to develop a "marinized" small UAV that could be deployed from a variety of ship sizes with minimal infrastructure requirements.
We found the houser line on April 2, 2008 and attached a tracking buoy to it. The buoy is still reporting it's position twice daily and it's really fascinating to see a map of it's voyage for the past THREE years.
If anyone is interested in this stuff I posted a longer entry on my personal blog here: