HOT-21: Chief Scientist Report

Chief Scientist: C. WINN

HOT-21 Cruise Report
M/V Na'Ina
17-20 Nov. 1990 



Personnel List:
---------------

Steve Chiswell		WOCE
John Dore		GOFS
Dale Hebel		GOFS
Ricardo Letelier	GOFS
Stewart Reid		WOCE
Marc Rosen		GOFS/WOCE
Jef Snyder		WOCE
Chuck Stump		GOFS/U.W. Oxygen
Chris Winn		GOFS



Itinerary (approximate local time):
-----------------------------------

17 Nov.
  0400 Depart Honolulu
  0700 Arrive Kahe Pt
  1000 Depart Kahe Pt
  2000 Arrive HOT-site: deploy sediment traps
  2300 Commence CTD sampling
18 Nov.
  0300 Primary productivity cast
19 Nov.
  0000 Cease 24-hour CTD sampling & transit Honolulu
  1200 Arrive Snug Harbor & offload
20 Nov.
  1200 Depart Snug Harbor & transit ALOHA
21 Nov.
  0000 Arrive ALOHA & locate traps
  0800 Recover traps & transit Honolulu
22 Nov.
  0000 Arrive Honolulu



Narrative:
----------

The Na'Ina a 110' vessel, was charted from a private contrator for
HOT-21. A test cruises conducted on the Na'Ina demonstrated that the
ship's crane was too long to safely deploy the CTD. It was therefore
decided that CTD operations would be cancelled on HOT-21 and that
sampling would be restricted to work not requiring the CTD.

HOT-21 departed Snug Harbor at 1030 on 17 November 1990 after solving
some last minute electrical problems. An XBT was dropped, and an
optical profile was obtained at the Kahe Point Station. XBTs were
dropped en route to Station ALOHA.

Rough conditions at Station ALOHA (30 knott winds and 12-15' seas)
prevented the planned primary production and sediment trap work. After
holding station for approximately 12 hours, forecasts for increasing
seas and gale force winds forced HOT-21 to return to Snug Harbor. We
returned at 2200 on 18 November.