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MVCO Waves Newsletter - December 10, 2001
(Click here for pdf version)
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| An image of a rotary
fan beam sonar in the coarse sand showing large wave orbital
scale ripples. |
The Marthas Vineyard Coastal Observatory
is alive and well and producing great data for a growing and diverse
scientific community. It has been an exciting fall with new instrument
installations and a very busy one as we work at developing a management
structure for our new facility. The vision of the observatory as a
significant resource not only to the scientific community, but also
to the public, and especially as a tool for educators gives us a very
broad mission. Meeting these diverse goals will be challenging and
exciting.
New Users
The most exciting news in late November was the installation of another
new user, actually two of them. Peter Traykovski and Jim Irish are
collaborating on the science and instrumentation for studies of bedform
migration.
December brought us more users, Mike Richardson of NRL at Stennis
and John Bradley of OmniTech in New Orleans. They brought a team of
seven engineers and divers to install a suite of four instruments.
They will be collaborating with Peter Traykovski on expanded studies
of sediment transport and object burial.
Glenn McDonald, Andy Girard and Erich Horgan installed a second Traykovski
monopod and worked with the NRL divers.
Together the two groups have a suite of eight instruments arrayed
from the node about 150 meters to the South and East. Peter has added
an Imagenix sonar and a second Nortek current meter. Bradleys
group has a Navy optical sediment burial instrument and a Sontek ADP
with CT and pressure/wave gauge. It was a challenging installation,
requiring three trips but well worth it.
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| An image from the
sonar near the node in the fine sand showing smaller an-orbital
ripples and the instrumented NRL shape with a scour pit around
it. |
Data Serving
Janet Fredericks, our data analysis programmer, has started working
with Danielle Fino and Julie Allen of CIS. They will be creating a
web page to serve up Janets data output products as well as
other information, links related to MVCO, current science projects,
and future plans. This is a long awaited and critical element in meeting
our commitment to provide a suite of core meteorological and hydrographic
data sets to our broad constituency of scientists, fishermen, students,
teachers, and beach-goers.
The display of the core sensor suite at the met mast on South Beach
will include both 2-D and 3-D sonic anemometers, relative humidity,
temperature, and pressure. At the lab we add both solar and infrared
radiation and a rain gauge as well as another wind speed and direction
measurement. The underwater node will report on surface current speed
and direction, wave height and direction, and at the forty foot depth
sea temperature and salinity. The team expects to have the page available
by the end of the year. It is possible some individual scientists
may also make information or data available from their sensors at
MVCO on their own web pages. We will post links to relevant sites.
Field Ops
We are always looking for new members of the dive team. This is an
opportunity to increase your skills and train on new equipment. While
very beautiful, the observatory site is a remote and challenging place
to dive. We need to be able to draw on a large number of enthusiastic
and experienced divers who would enjoy working with us. Terry Rioux
is still running training courses for dry suit and surface supply
divers as well as starting to introduce divers to the diver signaling
system. Divers interested in training should contact Terry at extension
2239. Divers desiring more information about the type of work and
diving conditions may contact Glenn McDonald or Fred Thwaites.
Feedback, suggestions or comments on this newsletter can be sent to
mmcelroy@whoi.edu.
Back to MVCO Waves Newsletter
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