HOT-44: Chief Scientist Report

Chief Scientist: C. WINN

Personnel list
--------------

	Chris Winn - Chief Scientist
	Terry Houlihan
	Jim Christian
	Chris Carrillo
	Jef Snyder
	Sean Kennan
	Jinchun Yuan
	Dale Hebel
	Happy William
	John Dore



Schedule
--------

We departed Snug Harbor at 0903 on January 18th on the R/V Townsend
Cromwell.  The cruise schedule did not deviate significantly from the
plan.  We returned to Snug Harbor at 1400 on the 22nd of January.
Weather was good throughout the cruise.  Seas were 3 to 4 feet and wind
speeds generally less than 10 knots.

This was thr first HOT cruise to the R/V Townsend Cromwell.  The ship
was equipped with only 1200 meters of CTD cable so CTD casts were
limited to 1000m.  In addition, the HOT 24-place rosette was too large
to fit through the ship's A-frame, and we used a 12-place rosette
provided by the Cromwell.  this rosette was equipped with a combination
of standard 10 and 12 liter Niskin bottles.



Sample
------

With the exception of the WOCE deep cast, which was not obtained
because of the limited amount of CTD cable available, all of the
standard WOCE and GOFS sampling was completed on this cruise.  Because
the 12-place rosette was used, the cast schedule on HOT-44 was
different than that used on most HOT cruises.  The difference was
mainly due to the need to spread our water sampling out over more casts
than is necessary when the 24-place rosette is used.



CTD Operating
------------

CTD operations went reasonably well on this cruise.  There were some
problems with double trips on the first few casts.  This problem was a
result of the use of a high-power deck-box with the relatively short
CTD cable available.  The problem was solved by placing a resistor
between the deck-box and the CTD cable.



Sediment Trap and Primary Production
------------------------------------

The sediment trap and primary production work went smoothly this
cruise, and no problems were encountered with the recovery or the
deployment of either array.



Ancillary Program
-----------------

Dave Keeling	CO2 ( Carbon dioxide )
Lisa Cambell	Phyltoplankton taxonomy