Alerts
May 10, 2013

Today marked the end of Leg 1 - servicing installations in the Salish Sea - wrapped up after a successful 10 days of operations. At 09:00 the newly arrived leg 2 crew stood in the sun on dock with the happy, but tired, leg 1 crew. We began loading our gear and instruments right away with the ship's crane and finished at 14:00. It took us until evening to rearrange it like a giant block puzzle and tie it all down. All those hours playing TETRIS finally paid off.

The CanPac ROV Team spent the day conducting maintenance on the Remotely Operated Vehicle and working through the various tooling required for leg 2.

The big event of the day was the installation and configuration of the satellite system which will enable high bandwidth communication for leg 2. We began in the morning by setting up network equipment in anticipation of the satellite system's arrival. The frame finally arrived on the dock at 13:30 enabling the pedestal, dish and ISO connectors to be installed. The entire assembly was hoisted onto the CanPac Divers containers on the aft deck at 16:15 with most of the science crew outside watching.

Cable runs and terminations were completed by 18:30 and the system was powered up. Calibrations, verifications and network testing continued for several more hours. Testing included clockwise and counter-clockwise spin tests with the Tully, a.k.a. doing donuts in Pat Bay. The spin tests confirmed we have a 15 degree dead zone facing the ship's mast. The system is now functioning (enabling us to send you this log), but requires a few tweaks in the morning to get the streaming video online. We have two VoIP phones with Houston area codes, but don't expect a Texas accent when you call, and saying "Houston, we have a problem!" is not funny to us.

The satellite technicians from Oceaneering, Hung Phan and Gary Cheramie, along with Ocean Networks Canada's Nic Scott were transferred to shore after a long, but ultimately successful, day of system setup. We are currently underway to Barkley Canyon Upper Slope, looking forward to our first day of offshore operations tomorrow.

ROV crew

Here is a brief summary of the accomplishments during the maintenance of the VENUS installations:

By the numbers

  • 13 Days
  • 28 Dives
  • 5 ROV Pilots
  • 23 Tully crew
  • 23 Science party participants (full and part-time)
  • 3 CTD Rosette casts
  • 12 cabled platforms serviced and 11 re-deployed
  • 3 autonomous moorings serviced: two recovered, one redeployed
  • 2 extension cables laid and connected to service Fraser River Delta Site
  • 76 instruments serviced during the leg

Saanich Inlet

  • Bottom Boundary Layer (BBL) Platform recovered
  • DISCo Digital Stills Camera System recovered
  • HD Forensics Camera: Recovered and redeployed
  • MicroSquid Benthic Oxygen Flux Platform – recovered and redeployed (twice) Autonomous Sill Mooring - redeployed

Strait of Georgia – Central

  • Bottom Boundary Layer Platform deployed
  • Autonomous CTD & DO mooring recovered

Strait of Georgia – East

  • Delta Extension Cable (south) end found and connected
  • IOS Hydrophone Array deployed
  • ONCCEE Hydrophone Array deployed
  • Autonomous CTD & DO mooring recovered

Strait of Georgia – Delta

  • Delta Extension Cable (north) end found and connected to Delta Node
  • Delta Node deployed
  • Delta Dynamics Laboratory (DDL) cable laid
  • DDL Platform deployed
  • ONCCEE Hydrophone Array deployed
  • Seismic Liquefaction In situ Penetrometer (SLIP) deployed

Science activities

  • Sonar surveys of Howe Sound
  • Sonar Surveys of Delta Slope
  • ROV transect survey from Saanich Inlet into Patricia Bay
  • 3 ROV transect surveys of Saanich Inlet cliffs in the Squally Reach area

DDL being deployed

Stay up to date with ONC
Subscribe
Ocean-Climate Building University of Victoria
#100, 2474 Arbutus Road, Victoria, BC, Canada, V8N 1V8
info@oceannetworks.ca+1 (250) 472-5400
Marine Technology Centre University of Victoria
#106, 9865 West Saanich Road, North Saanich, BC, Canada, V8L 5Y8
info@oceannetworks.ca+1 (250) 472-5400

@ 2024 Ocean Networks Canada. All rights reserved.