Date: Fri, 17 Dec 1999 18:28:50 -0800
To: marlene@octopus.wr.usgs.gov, csherwood@octopus.wr.usgs.gov,
jferreira@octopus.wr.usgs.gov, telfers@octopus.wr.usgs.gov,
gonzales@octopus.wr.usgs.gov, swallace@octopus.wr.usgs.gov,
jborden@quissett.er.usgs.gov, mmartini@nobska.er.usgs.gov,
rrendigs@nobska.er.usgs.gov, kotoole@octopus.wr.usgs.gov,
shipsked@sio.ucsd.edu
From: Marlene Noble
Subject: RV Sproul, Jan 11-13, 2000
Everyone,
This is the cruise plan for the January 11-13 2000 trip on the RV Sproul at
the present time (Note, we've already changed the date)
Dec 20 - Jan 7 Various packages will be shipped to the Marine Center at
Scripps. I think most of these will be from Woods Hole and Marinna (508
457-2326) has already talked to Shad about them. Two surface buoys will
arrive/have arrived? at Scripps from the manufacturer. Tim Elfers
(650-329-5879) is the contact on these.
Sunday/Monday, January 2-3. A truck from Marfac will drive from Redwood
City to Scripps with the instrument van and parts of the moorings.
Tuesday January 4. Crews from Marfac will arrive to put the tripods
together. More packages with instruments will arrive at Scripps with
instrumentation in the next few days. The Woods Hole crew will arrive
Tuesday or Wednesday
Tuesday January 4- Sunday January 9 Build and test all instrument
systems. If possible, the tripods will be wet-tested on Friday or the
weekend.
Monday, Jan 10 Load the ship
Tuesday Jan 11. Leave the dock in time to get to the first deployment
site several hours before dawn. This site will be chosen when the ship is
loaded, as space problems may dictate which instruments are easiest to
offload. This means we will probably leave after 10 am, but before 2 pm
At each site, we will do a small bathymetric survey before the deployment
to determine the exact site locations. We will bring detailed bathymetric
maps that need to be ground-truthed
The sites are
Site A 34 00.35 118 41.78 51 m
Deploy Geoprobe A and a surface mooring
Site B 33 57.06 118 33.17 60 m
Deploy Geoprobe B and a surface mooring
Site C 33 52.92 118 35.00 76 m
Deploy the Minipod and a surface mooring
The Geoprobes and the Minipod are tripods with all instrumentation
attached. These will be lowered into the water.
The surface moorings consist of a large surface buoy (6 ft diameter), a
short shot of chain, an instrument package about 5 m below the buoy, then
chain (and maybe wire) to an anchor. There will be no release on the
anchor, so this entire package will be recovered in May. There are 2 foam
surface buoys and 1 steel surface buoy. The steel buoy is much heavier
than the foam ones. At the moment, we have not decided where the steel
buoy will go, but if the Coast Guard insists on the information before
launch, it will go at the 60 m site.
Once things are deployed, head for home
SHAD We have a lot of surface samples in the area, so we probably do not
need to do a grab sample. BUT, if we want one, is there a little side
winch we could lower one of those little grabbers that bring up some dirt
(forgot the name - not large like a box core, we just would like a little
of the surface material)? Also, do you have the grabber? Think we have
one we could bring along. We would only want to do this if you had the
equipment and it was easy/quick. We definitely don't want to re-rig the
equipment we use for moorings. (yeah, I know, am always asking for more at
the last moment)
If things work out, I think we could do all this in one long day. But if
the weather is a problem, or something malfunctions, it might take 2.
The people coming are
Marlene Noble
Chris Sherwood
Joanne Ferreira
Dave Gonzales
Tim Elfers
Kevin O'Toole
Marinna Martini
Richard Rendigs
Abby Posner is a possibility. We will know soon if we need her.
When we get back, we will load a truck for Marfac in Redwood City and
probably ship the Woods Hole stuff directly from Scripps. If direct
shipping is a problem, we can take it all back to Redwood City and ship to
Woods Hole from there.
The above is a little vague, as I am trying to remember when everyone said
they would get there.
Scripps people - please let me know what other information you need. I
will be out of the office until Monday, Dec 27. For Woods Hole, Marinna's
email is mmartini@nobska.er.usgs.gov. The head of Marfac in Redwood City
is Steve Wallace swallace@octopus.wr.usgs.gov. I imagine Anne Gartner
(agartner@octopus.wr.usgs.gov) can also get you information about travel
plans if better dates are needed before I get back
Steve W - please let Scripps know if the dates I gave for your arrival are
incorrect.
Marlene Noble
Dr. Marlene Noble
U.S. Geological Survey
345 Middlefield Rd. MS 999
Menlo Park, CA 94025
marlene@octopus.wr.usgs.gov
phone (650) 329-5486
fax (650) 329-5411