Drifter trajectory display and PWS circulation patterns

Thanks to Carter and Rob for updating the drifter data. You can display each drifter trajectory or all the drifter trajectories (top image) at the JPL OurOcean/PWS portal, http://ourocean.jpl.nasa.gov/PWS, click "Drifter Trajectory & Observation". A cyclonic circulation in the sound is clearly evident in the sound with exit flow through the Knight Island Passage and the Montague Strait. From the ROMS simulation (lower-left image), the flow into the sound is mostly through the Hinchinbrook Entrance at the surface. However, at 20 meters, the flow into the sound is through the Montague Strait (lower-right image). Carl confirmed that this circulation pattern has been seen before probably driven by the fresh-water input.