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May 1995 Environmental Systems First Year Exam
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Environmental system class
Michael with a drogue
Michael with a drogue
n April of 1996, the Pearson College Environmental Systems Class planned a field lab which would enable us to present a profile of the currents around the Race Rocks Ecological Reserve. Michal and Arunas loading a drogue.A square piece of black plastic with lead weights attached to the bottom, hangs under the drogue in the water. Subsurface currents vary from the surface where wind driven currents may predominate. Michal and Arunas loading a drogue.
Symballa Class looking at results Class looking at sea lions
Symbala lifts a drogue into the boat. The drogues were released on an ebb tide between North Race Rock and Great Race Rock. Here the class has a drogue drifting in the background. We also take time out to study the behavior of the sea lions hauled out on the islands of the Ecological Reserve at Race Rocks
We obtained these drogues as surplus from the Alaskan Oil Spill. We have fitted them with radar reflectors so that we can determine the distances from the islands in our plotting process. The drogues were released on an ebb tide between North Race Rock and Great Race Rock.
Drifting Drogue
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