Scientific Reports
Scientific Reports
>Received: from revelle by revelle.UCSD.EDU (SMI-8.6/UCSDUUCPGENERIC.4)
id BAA27983 to <shipsked@ucsd.edu>; Fri, 28 May 1999 01:14:22 GMT
Date: Fri, 28 May 1999 01:14:22 +0000 (GMT)
From: Craig Lee - Chief Scientist HNRO05RR <revelle!revelle!craiglee@sdsioa.ucsd.edu>
Reply-To: Craig Lee - Chief Scientist HNRO05RR <revelle!revelle!craiglee@sdsioa.ucsd.edu>
Subject: Report for ongoing Revelle Cruise (C. Lee)
To: shipsked@ucsd.edu
Hi,
Gene Pillard asked if I would forward a brief progress report on the
current R/V Revelle leg. In response, I've enclosed some text summarizing our
work to date. Please let me know if you need additional information. Thanks,
Best Regards,
Craig
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Dr. Craig M. Lee
University of Washington
Applied Physics Laboratory
1013 NE 40th St.
Seattle, WA 98105-6698
craig@apl.washington.edu
(206) 685-7656
(206) 543-6785 (fax)
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Greetings from the Japan/East Sea! Work is proceeding well so far. We've had a
series of small problems with SeaSoar (failed temperature probe, kinked tubing
in the pump ducting, etc). On 26 May, SeaSoar collided with a submerged
obsatcle (we still don't know exactly what it was). Repairs required a little
under a day, during which we executed a hydrographic survey originally planned
for later in the cruise. Thus far, we've completed three long north-south
SeaSoar lines, one intensive mesoscale SeaSoar survey and a hydorgraphic line
across the subpolar front. We are currently working on second pass of the
mesoscale survey. The subpolar front is strong and very distinct, and we're
already seeing bio-optical evidence for suduction in the rough plots of light
transmission and chlorophyll fluorescence. We did a long north-south line along
134, extending from 37 45' N to 40 30' N. In addition to the subpolar front,
this section caught a strong, subsurface front-like feature farther south. It
doesn't seem to extend all the way to the eastern edge if the radiator, however.
We're going to mix 100 km by 100 km grid surveys with several longer legs
extending southward to 38 N. I'm hoping this will allow us to trace some of the
water formed the previous winter. Interestingly, both the surface (subpolar)
front and the subsurface feature farther to the south have fingers of low xmiss
extending down the density interface. The imagery the NRL group have been
bringing in has allowed us to choose a good section of the front to target, and
has been a useful guide in deciding how to lay down the survey lines. This is
going to be a fun data set to analyze.
Otherwise, the cruise is going well. The first days were occupied by a
last minute fire drill over the Russian clearances, but that's now
squared away and we are permitted to enter Russian waters. The three
scientists from KORDI have been a pleasure to have aboard. They are
quite active in helping with the SeaSoar work and have been good to
interact with. I think we will have good scientific collaborations
with K-I Chang. Revelle is a good ship wo work from. Both crew and the
res techs have been very helpful.
This cruise is being funded by a grant from the Office of Naval Research
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