PORT CALL ACTIVITIES - SAN DIEGO
The ship arrived in San Diego the evening of 16 October 1996. The ship
stopped in Los Angeles for refueling before San Diego. The ODP crew
arrived the next morning, boarded the ship, and crossed over with the
offgoing crew. A "Stuck Pipe School" was held in San Diego before the port
call for some of the ODL/SEDCO and ODL personnel. San Diego was a very
busy port call. The offgoing cores, air freight, and surface freight were
unloaded before more than 18 truckloads of supplies, casing, Anadrill
equipment, sepiolite, cement, and barite could be loaded onto the ship. The
JANUS Steering Committee met with Tracor during the port call to discuss
the progress of the JANUS database. The pacing item for the port call was
the installation of the new radar system on the bridge to replace the unit
damaged during Leg 163. Chemical waste was unloaded to a UCSD
hazardous waste disposal group. The Pelagos navigation program, WinFrog,
was upgraded. The new version is 32 bit but requires a dongle on the
master computer to work.
There were many groups from high schools and universities throughout San
Diego that received tours of the ship. ODP and BRG borrowed a UNOLS fleet
Inmarsat B, high-speed marine communication system that was installed
and will be tested to look at the feasibility of purchasing one in the
future. These can send digital data faster and cheaper. We refilled our
Liquid nitrogen dewars in anticipation of clathrate recovery during the
leg. A new air plenum was built, which will raise the air intake for the lab
stack and quarters above the Bridge deck in a move to reduce obnoxious
fumes from H2S or painting and increase air circulation. There was a GFE
property Inventory of the ship during the port call. The ship departed from
San Diego about 1900 Tuesday, 22 October 1996
GENERAL LEG INFORMATION
The ship sailed 22 October for an eight day transit to the first site off the Nicoya Peninsula, Costa
Rica. Off the coast of Mexico, one of the crewmen developed health problems and was evacuated
onto a launch from Mazatlan.
The ship arrived at the first Site 1030 (CR-1) on 1 November 1996. The ship drilled 17 holes at
five sites. On 10 November the name of the ship was officially changed to the D/V JOIDES
Resolution. Letters were changed on the bow and stern and the life rings and survival suits. The
hold overhead crane was removed during the leg to create more room to store supplies and make it
easier to work in the storage spaces. At the end of the cruise, there was a two-day transit to
Panama.
UnderWay Activities
Navigation, bathymetry, and seismic data were collected during Leg 170. The site locations were
well surveyed with 3D geophysics from previous expeditions. All beacons were dropped on
predetermined coordinates. A short seismic survey was done during the approach to the first site.
Hole positions were determined by averaging GPS fixes taken at one-minute intervals over a
period of many hours for each hole. Because the sites were so close together, the ship was moved
in DP mode from site-to-site during the entire leg.
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