September 13-14, 2008


Weather:  Completely overcast in the morning.  Winds and seas calm during morning.  Clouds starting to thin by 14:00 local.  By 15:00 local, clouds starting to break, wind increasing from 10 knots to 15 knots from west and seas becoming rougher.  Skies clear after 16:30 local and wind at 14-15 knots.  Some small white caps present.  By last couple of cycles for both cameras, the sun was setting and thus images may be very dark.

Instrumentation used:  Sky camera system was run from 16:30 GMT – 02:00 GMT (September 14, 2008).  Images were taken in cycles that took 1 image with each appropriate spectral filter and polarizer combination.  A typical cycle took about 6 minutes to complete and cycles were started every 15 minutes. 

DPOL instrument was run from 16:00 GMT – 02:00 GMT (September 14, 2008) sampling downwelling light.  DPOL data was collected at the surface from 16:00 GMT – 17:00 GMT, then at 2 meters depth from 18:00 GMT – 19:00 GMT, then at 4 meters from 19:30 GMT – 20:30 GMT, then at 6 meters from 21:00 GMT – 22:00 GMT, then at 10 meters from 22:15 GMT – 23:00 GMT, then at 20 meters from 23:15 GMT – 00:00 GMT (September 14, 2008), then at 30 meters from 00:15 GMT – 01:00 GMT (September 14, 2008).  The camera was then brought back up to a depth of 1 meter for the remainder of the sampling time.  Images from this instrument were taken in cycles that consisted of 1 image with each spectral filter and then that sequence was looped 5 times.  Cycles took about 12 minutes to complete and cycles were started every 15 minutes corresponding with the sky camera cycles.

Sky File Summary (Excel file)
Image movie between 2200 and 2300, movies exclude "bad" catagory
http://www.youtube.com/watch?v=ZxUpU7Z4XAg
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Image movie between 2300 and 0000, movies exclude "bad" catagory
http://www.youtube.com/watch?v=FL9qpjoD0LE
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Image movie between 0000 and 0100, movies exclude "bad" catagory
http://www.youtube.com/watch?v=rMkegBrFg8c
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Image movie between 0100 and end, movies exclude "bad" catagory
http://www.youtube.com/watch?v=gCypxjU9Y2g
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Full data images for above movie