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This poster was presented at the 2005 ASLO conference in
Salt Lake City.
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| Rachel Koehler, a RIOS participant in the summer of
2005, presented this poster after completing her internship. |
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| This is an example of a raw echogram typical of those
collected from the Nauvoo in 2004. |
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| In this figure I have removed the spikes (visible in
the raw plot as vertical lines) and plotted the echogram along the path
the Nauvoo traversed on this sampling run. The high
scattering levels visible at the surface in the raw echogram are shown
here to
coincide with times in which the boat had stopped to deploy the
tucker-trawl. These high surface scattering levels, seen
whenever we stopped moving, were likely caused by small bubbles
generated by the ship. |
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| This video (click on the figure at right to
begin the video) is an animated perceived depth image (PDI) of ADCP
data gathered in the Porcupine Seabight (provided by Kirsty Kemp).
To experience the 3D effect, first position your eyes about
30 cm from the screen, then slowly cross your eyes until the two plots
merge. Use the slider to see how the current vectors change
over time. |
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