New test cruise dates are 0800 23 January through 0800 27 January. We have Monday 22 January for loading and Saturday 27 January to unload. Dennis Long (drlong@ucsd.edu; 619-534-7629) is in charge of shipments (from WHOI and possibly from CTD manufacturers for the ODF tests).

The first station will be in shallow water to test the WHOI rosette where it will be easier to grab in the unlikely event that it falls off the wire. However, once the WHOI crew gives the go-ahead, our destination is the closest point where we have 4000 meters of water underneath us. If initial tests can be carried out in less than 4000 meters of water and (1) we are ready, (2) captain/ship are ready then deep water tests can begin at that time, moving out toward 4000 meter isobath between test casts. Test cruise ends when (1) We say we're done or (2) captain says we are done, whichever comes first.

Well, that's the preliminary plan as of today! More later. Jim

There are two distinct tests being carried out:

Test Series I  ("WHOI tests"):

Testing the WHOI slide-down-the-wire 36-place rosette system.

These tests will use a dedicated CTD winch with ca. 5000 meters of 
0.322" UNOLS 3-conductor CTD cable.  The cable will be terminated by 
WHOI engineers and the SIO Resident Technician to WHOI specifications, 
i.e. a custom-made weight (provided by WHOI) which will be nicropressed 
to the cable.  Operation of the full functions of the WHOI rosette 
require access to the ship's 12 kHz system, as per discussions between 
WHOI and the SIO Resident Technicians (I hope).

The WHOI tests will begin shortly after departure (a short number of 
hours) in a safe, legal spot with 200 meters of water.  The first WHOI 
test will nominally take 1-2 hours, but the results of the test will 
partly determine what happens next.

The general plan is to over the duration of the test cruise lower the 
WHOI rosette to progressively deeper levels (to 4000 meters in the final 
tests), but not proceeding to each successive level until the test at 
the current level is successful.  So long as the water depth exceeds the 
test depth there is no location-specific element to these tests.

So that the WHOI engineers do not have to work around the clock, we
will nominally schedule the WHOI tests during normal daylight working
hours.

It is my unferstanding that GO is providing the CTD that WHOI will
use for these tests.  If this is the same CTD that will be used for the
ODF CTD tests (see below), then this instrument will need to be
regularly switched back and forth between the WHOI and ODF
rosettes.


Test Series II  ("ODF tests")

ODF will carry out CTD/rosette tests on a separate, dedicated CTD winch 
with ca. 5000 meters of 0.322" UNOLS 3-conductor CTD cable.  The cable 
will be terminated by Carl Mattson to ODF specifications.

ODF plans to mount up to four CTDs and 12 rosette bottles on an ODF 
rosette frame.  The nominal CTD contingent is an ODF CTD, a GO CTD, an 
FSI CTD, and a SeaBird CTD.  (These will all be "deep ocean" "WOCE" type 
instruments.)  It is not yet clear whether we can always get the 
complete raw data stream from all 4 CTDs, though that is the plan.

The rosettes will be cycled repeatedly in the following mode:

1 deep cast (0-4000-0 meters)
bring on deck; collect 12 salt samples
3 intermediate casts (0-1000-0 meters), bringing on deck in between 
each; no salt samples
repeat 1 deep, 3 shallow, ad nauseum.

These tests will be carried out "whenever we have time".  It is the 
intent to give priority to the WHOI tests.  In practice, we estimate 
that the WHOI tests will be a twice-daily activity, and that the
ODF tests will take place the rest of the time.  ODF will bring an 
Autosal salinometer to sea (and use it).


Date: Fri, 19 Jan 1996 07:19:04 -0800
From: jswift@odf (Jim Swift)
To: bob@odf, carl@odf, frank@odf, john@odf, kris@odf, lzimm@ucsd.edu,
        restech@sdsioa, scott@odf, shipsked@sio
Subject: ODF Test Cruise loading

Dear Tammy:

During Monday, 22 January, ODF will be loading Sproul for the ODF Test
Cruise.  I believe that Bob Williams from ODF will be our "technician-
in-charge" (TIC) for this cruise.  (He is welcome to designate someone
else, and if he chooses to do that, he will do this directly to you.)
He will be in charge of the science group loading and installation efforts
on Monday.  My plan - which I will change if you request that I do - is
to show up at about 1:00 pm and stay until about 3:00 pm, during which
time I will discuss problems with the technicians, go over the cruise
plans with Captain Zimm and you, hold a brief (15-minute) all-hands
meeting at 2:30 pm, and nail any late medical or drug/alcohol forms.

Does this meet with your approval?

Jim Swift