CRUISE PLAN R/V WECOMA
Oregon State University
College of Oceanic & Atmospheric Sciences

FILING DATE:      4/22/97

CRUISE NUMBER:                  		W9707A 
						7/14/97 - 7/23/97 
						Dutch Harbor, AK to Newport, OR
TITLE:                                  			RT TSUNAMI
CONTRACT/GRANT NUMBER:         	04NA67RJ0151
PRINCIPAL INVESTIGATOR(S):              	Eddie Bernard/Frank Gonzalez
OPERATIONS CONTACT: 			Hugh Milburn, 206-526-6169 or
						Michele G. Bullock, 206-526-4485

PURPOSE:  Two surface buoys will be deployed in the North Pacific during the
transit from Dutch Harbor to Newport, Oregon.  This demonstration project will provide early warning on tsunami hazards from observation in the open ocean.  Data from sea floor pressure gauges will be transmitted acoustically to the surface buoy, and then to warning
centers via a geostationary satellite. 

ITINERARY:   
Dutch Harbor, AK to Mooring #1: 52.38 N, 156.82 W (~4537 m depth), then to 
Mooring #2: 46.08 N, 131.67 W (~2834 m depth) then to Newport, OR

WILL RADIOACTIVE METHODS BE USED?       NO

OPERATIONS PLAN:   Similar activities are planned at both mooring deployment sites.  Upon coming into the site, a survey of the bottom will begin using the LSR (line scan recorder/fathometer).  An area of 10 to 20 square miles with a vertical relief of <200 meters will be sought.  The orientation of the survey will depend on the local wind and seas, and the bottom condition will determine the actual extent of the survey.  When the survey is completed the surface buoy will be deployed in the typical anchor last method.  After the buoy has settled, the anchor position will be determined and the bottom pressure recorder (BPR) will be deployed close to the buoy anchor.  The data will be monitored for several hours following the BPR deployment, with the ship staying within 1 mile of the buoy.  If the instrumentation malfunctions, it may be necessary to recover the buoy or BPR.    

EQUIPMENT REQUIRED:  (Should be included on Common-Use Equipment request
form):
1) LSR/fathometer capable of 5000m depth
2) A-frame 
3) stern capstan 
4) stern crane
5) data string output from shipboard computer/gps to input on one of our computers 

SCIENTIFIC PERSONNEL TO BE ON BOARD (Provide full legal name & affiliation):
Engineer in Charge:     Hugh Milburn           	M       PMEL
Engineers:              	Christian Meinig        	M       PMEL
                        	Scott Stalin           	M       PMEL
Technicians:            	TBA
OSU Marine Technicians assigned to cruise: 1 marine tech. requested to assist with mooring deployments and computer data collection interface.

USER SUPPLIED EQUIPMENT 
Vans/Containers:        NA
Number:
Size:
Estimated Weight:
Location:

Some items to be loaded include: 
Bottom pressure recorder, two 8’ dia. Toroid buoys with towers and bridles, railroad wheel anchors, wire rope, nylon line, glass ball floats, hardware boxes, instrumentation, acoustic releases, BPR anchors, etc.

OTHER BULKY HEAVY ITEMS:
Location:
Estimated Weight:       

2 COMPLETE TSUNAMI MOORING SYSTEMS - estimated weight is 30,000 lbs,                                                   estimated deck area required is 400 sq.ft. with majority of equiment placed on the fantail
				
A diagram and information on the mooring system can also be found at: www.pmel.noaa.gov/tsunami/sat_buoy.html

BILLING INFORMATION: 
Name:   Cindy Loitsch
Address: NOAA/PMEL, 7600 Sand Point Way, NE
City, State & Zip: Seattle, WA 98115
Account Number (or number to reference):	7MGHOOO/8R3DA3W1 (FOCI Program) & 
					7MGHOOO/8R3ATM97 (Tsunami Program - should only be charged for 1 day)

DO YOU  WANT CELLULAR/INMARSAT PHONE ACCESS? (Chief scientist will be 
responsible for all charges - dedicated science phone):

YES