HOT-106: Chief Scientist Report

Chief Scientist: L. TUPAS

Loading: July 6 & 7, 1999			
Vessel: R/V KaImikai O Kanaloa

Test cruise
Departed: July 8, 1999 at 0900	Returned: July 9, 1999 at 0800	

HOT-106
Departed: July 12, 1999 at 0900	Returned: July 16, 1999 at 0800	

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

1a.	SCIENCE PERSONNEL Test cruise

	Luis Tupas - UH, scientist
	Terry Houlihan  UH, research associate
	Dan Sadler - UH, research associate
	Roger Lukas  UH, scientist
	Craig Nosse - UH, research associate
	Don Wright - UH, research associate
	Fernando Santiago Mandujano - UH, research associate
	Mark Valenciano  UH, marine technician
	Karen Selph - UH, scientist
	Christopher Measures - UH, Scientist
	Sue Vink  UH, Scientist
	Carrie Burdick  UH, REU student
	Jordan Raddick  UH REU student
	Mikhail Blikshteyn  UH REU student
	Brian Popp  UH, scientist
	Ellery Ingall, UT, scientist

1b. 	SCIECNE PERSONNEL HOT-106

	Luis Tupas - UH, scientist
	Terry Houlihan  UH, research associate
	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
	Scott Nunnery  UH Research associate
	David Sutherland  UH, REU student
	Larry ONeil  UH REU student
	Eric Grabowski - UH REU student
	Jessica Walter  UH REU student
	Toshiko Sato  UH Graduate student


2.	GENERAL SUMMARY

This was the first HOT cruise on the R/V Ka Imikai O Kanaloa.
The test cruise was conducted to evaluate configurations made by the
HOT program to operate on this vessel. Several problems were
encountered, the majority of which were fixed by the HOT cruise. This
cruise was also conducted to establish safe protocols for back deck and
CTD operations.

During the HOT cruise, all objectives of the JGOFS and WOCE
programs were accomplished. 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.


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

This was the first HOT core cruise on the R/V K-O-K. Most of the
officers and crew were familiar with our work because of their previous
experience on the R/V Moana Wave. They 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

July 6 & 7, 1999; Loading Days
 
We did a full on-load for this cruise. The ships main deck was configured 
for HOT equipment. The main lab van and the rope winch were secured inside 
the submarine hangar. The equipment van was secured on the O-2 deck.  All 
deck and lab equipment were loaded and secured within the ships 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 e
ncountered. 

July 8, 1999 Test cruise
	
We departed from Snug Harbor at 0900 as scheduled without any problems. 
Fire and emergency drills conducted at 0930 followed by a safety briefing by 
the first mate and a short science meeting. Arrived at Station 9 (20? 51N, 
158 10W) at 1200 and deployed the floating sediment trap array without the 
crosses. A go-flo cast was conducted over the stern followed by a net tow. 
After the net tow, the array was retrieved. A weight cast was made from the 
air castle deck. Winch operators practiced operating the boom and winch 
system while science crew practiced deployment and retrieval procedures. 
After satisfactory protocols were established, the CTD was attached to the 
wire. While this was being done, the PRR and TSRB were deployed an retrieved. 
A CTD cast to1000 and 4000 meters was made. Aerosol and ozone measurements 
were made. All samples were taken and we departed for Snug at 2300. Seas and 
weather were a bit rough.

July 9, 1999

After a fairly rough transit we arrived at Snug Harbor circle at 0800. 
Problems were encountered with the engine and we were operating with one 
propeller for most of the cruise. There was also a problem with the toilets.
A list of other action items was provide to the engineering department. 


July 12, 1999

We departed Snug Harbor at 0800. 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 1700 and the ship proceeded to Station ALOHA.

July 13, 1999

Ship arrived at Station ALOHA at 1400 because of a problem with one of the 
ships engines. The floating sediment traps were deployed at 0300. The shallow 
cast was started at 0300 and the deep cast at 0900. The 3-hour burst sampling 
started at 1200. CTD casts at 3-hour intervals were conducted without 
interruption. Seas still rough. Conducted optical casts and atmospheric 
measurements during SeaWIFs overpass. Net tows conducted at noon.

July 14, 1999

Work continues according to schedule without any problems. 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. Last cast started at midnight.

July 15, 1999 

Work has been proceeding as scheduled without any problems. Second WOCE 
deep cast started at 0400 and completed at 0800. We received a telex message 
from UH about the ARGOS positions. Ship proceeded to the trap location and 
traps retrieved at 1200. Ship then proceeded to HALE ALOHA. Arrived at HALE 
ALOHA at 1400. CTD cast started at 1600 together with trace metal sampling. 
Departed HALE ALOHA at 1900.

July 16, 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
8. H2O2 samples for Gary Miller