Near-bottom currents in Monterey submarine canyon and on the adjacent shelf
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Authors
Caster, William Albert
Subjects
Advisors
Denner, Warren
Date of Issue
1969-10
Date
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Language
en_US
Abstract
Near-bottom currents in Monterey Submarine Canyon and the adjacent
shelf were collected using Savonius current meters. Simultaneous
measurements were made with one current meter on the shelf at a depth
of 91 meters and one meter located in the Canyon at 366 meters. Another
record was taken in the Canyon at the 366-meter location. Current speed,
current direction and water temperature were recorded continuously for
approximately seven days in each record. First-order statistics were
calculated and plotted for these time-series data. Scatter diagrams,
progressive vector diagrams and power spectra were also computed and
analyzed for the records collected during this study and for records of
sufficient length from previous investigations.
Net current set was in a cross-canyon direction for many of the
records; however, the currents in the Canyon oscillated as reported in
previous investigations. The oscillations were not as evident on the
shelf record. Mean and maximum current speeds recorded in the Canyon
were 10 and 51 cm/sec, respectively. On the shelf these values were
7 and 25 cm/sec. Observed values of net current set and volume transport
are related to Monterey Bay seasonal water conditions.
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Distribution Statement
Approved for public release; distribution is unlimited.