Hawaii Ocean Time-series (HOT)
in the School of Ocean and Earth Science and Technology at the University of Hawai'i at Manoa


HOT-110: Chief Scientist Report


Chief Scientist: L. TUPAS


Vessel: R/V Ka'Imikai O' Kanaloa
Loading: December 10, 1999			
Departed: December 13, 1999 at 0900	
Returned: December 17, 1999 at 0800	

Chief Scientist: Dr. Louie Tupas	
Master: Captain Robert Hayes
Deck Operations: Mr. Dave Gravatt	
Electronics Technician: Mr. Steve Poulos

1.	SCIENCE PERSONNEL

	Luis Tupas - UH, scientist
	Dale Hebel - UH, scientist
	Lance Fujieki - UH, computer specialist
	Dan Sadler - UH, research associate
	Ursula Magaard- UH, research associate
	Craig Nosse - UH, research associate
	Don Wright - UH, research associate
	Fernando Santiago-Mandujano - UH, research associate
	Mark Valenciano - UH, marine technician
	Colleen Allen - UH, research associate
	Claudia Benitez-Nelson - UH, scientist 
	Tom Gregory - UH, research associate
	

2.	GENERAL SUMMARY

All objectives of the JGOFS and WOCE programs were. All planned
stations were occupied. Weather and sea conditions were moderate to
rough but within limits of safety for deck operations. All core samples
were taken and the 36 hour CTD burst sampling period was not
interrupted. All samples for ancillary projects were taken. Floating
sediment trap array and primary production array deployed and recovered
successfully. No samples were lost during the in-situ incubations. ADCP
measurements were made throughout the cruise. While at Station HALE
ALOHA, the guardian buoy beacon was replaced with a boat operation.


3.	R/V Ka Imikai O Kanaloa, OFFICERS AND CREW, TECHNICAL SUPPORT

Ship's crew gave excellent support and showed enthusiasm and concern
for our work and were very flexible in receiving changes in our
operational schedule and logistical support. Technical support during
this cruise was excellent. STAG personnel were available at any time to
assist in our work and made things much easier for us.


4.	DAILY REPORT OF ACTIVITIES

December 10, 1999; Loading Day
 
The ship's main deck was configured for HOT equipment. The main lab van
and the rope winch were secured inside the submarine hangar. The
equipment van and second radiation van were secured on the O-2 deck.
All deck and lab equipment were loaded and secured within the ship's
labs. All electrical and electronic connections were made for the CTD.
All other equipment and containers were stowed away and secured. All
laboratory instruments were tested and appeared functioning. No
problems were encountered.

December 13, 1999

We departed Snug Harbor at 0900. Fire and abandon ship drills were held
at around 0930. We arrived at Station Kahe at 1130. Upon arrival the
PRR and TSRB were deployed and retrieved. CTD cast started at 1300.
Work at Station Kahe was accomplished by 1600 and the ship proceeded to
Station ALOHA.

December 14, 1999

Ship arrived at Station ALOHA at 0100. Floating sediment traps were
successfully deployed.  The deep CTD cast was made  at around 0400 and
the burst series commenced at 0900. Net tows and the light casts were
accomplished around noon.

December 15, 1999

Work continues as scheduled. Go-Flo cast at 0200 with some difficulty.
Primary production experiment made from Go-Flo cast water. Primary
production experiment was deployed without incident at 0500. At noon we
did optical and atmospheric measurements as scheduled at Station ALOHA.
Net tows successful. Primary  production experiment retrieved at 1900
and all samples processed shortly after. CTD casts continue at 3 hour
intervals.

December 16, 1999

Work has been proceeding as scheduled without any problems. Second WOCE
deep cast started at 0400 and completed at 0800. We received the ARGOS
positions by email. Ship proceeded to the trap location and traps
retrieved at 1100. Ship then proceeded to HALE ALOHA. Arrived at HALE
ALOHA at 1500.  Boat operations were conducted to replace the beacon on
the guardian buoy.  CTD cast started at 1700 together with trace metal
sampling. Departed HALE ALOHA at 2000.

December 17, 1999

We arrived at Snug Harbor at 0800.  Unloading commenced immediately and
completed at 1200.


SAMPLES TAKEN FOR OTHER INVESTIGATORS

1. DIC water samples for Charles Keeling, SIO-UCSD
2. DIC water samples for Paul Quay, UW
3. Seawater for Ed Laws, UH
4. Phosphorus experiments by Karin Bjorkman, UH
5. Aerosol and ozone measurements for J. Porter, UH
6. Seawater for Ted Walsh, UH
7. N2O samples for Brian Popp, UH