16 particles are seeded every 3 hours over the course of two days, just gulside of West Pass. Then, from the time each particle is seeded, it is followed for 10 days as it is advected around in the surface shelf circulation. The same model configuration as above is used, and this plot shows the trajectories of these each particle. Position data may be downloaded here and is an ascii file with output as (particle, lon, lat):
The figure above demonstrates the same number of particles, but they are only followed for 48 hours each. The circle represents a 10-mile radius from the seeding location in order to simulate an estimate of the line-of-sight of the ship's radar.
Again, the same number of particles, but this time they are only followed for only 24 hours each in the year 2008. Notice the larger distance covered by these particles, although over a shorter time period.
An example of the low-cost drifter design used for experimentation in Apalachicola Bay