Underwater Materials Performance Testing

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Procedure 1 Dec 7, 2007– Purpose: To test performance and resistance to fouling of PVC junction boxes and sealant compounds
Procedure 2 Jan 10, 2008– Purpose: to test resistance to fouling and corrosion of different alloys of Stainless Steel as well as various types of fasteners.
Procedure 3 Purpose: to protect submarine cables from chafing on sharp rocky edges
Procedure 4 Purpose: To prevent corrosion of steel Ibeam supporting and holding power and control cables through intertidal zone.
Procedure 5 Purpose: To provide ballast to steel Ibeam carrying power cables in intertidal zone preventing movement during heavy surge.

The Tidal Current Energy Project at Race Rocks

This video is a compressed version of the one produced by Brainstorm for the Tidal Current Power Project. It documents the partners and the process along the way in the establishment of the Turbine Project . (released January 19, 2007 to correspond with the visit of Prime Minister Stephen Harper to Lester Pearson College and Race Rocks.)

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Deploy and Retrieve ADCP Instrument

In order to predict the best location for the installation of the tidal power generator, an ADCP ( Acoustic Doppler Current Profiler) supplied by ASL Environmental Sciences was deployed. This instrument will collect current regime information for a period of one month. Rita Santos did the video and Angie Karlsen helped Chris Blondeau lift and position the concrete weights used to secure the device on the sea floor..

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Archived Video : Pearson College Diving Activity at Race Rocks

Underwater Webcasts by the Divers

2000 divelink WestRock
David,Satoshi,Victor and others do the first Johan Ashuvud week at Race Rocks Testing of the underwater to surface DIVELINK communication system  Underwater Video at West Race Rocks.
communications bluewater diving webcast
Live underwater webcast to New York using underwater communication system
(Spring 2001)
Bluewater Diving- or tether diving, 2002. An initial test for the live webcasts in the June,2000 at Race Rocks.
mmmm
Sea lions Visit Divers Video

The Underwater Environmental Data Sensor Bar.

sensors succession
In December 2000, the students and faculty of Pearson College install the first of the underwater environmental data sensors  Fouling -or succession– depends on how you look at it.

Underwater Work for the Tidal Energy Project

ADCP ADCP recover install turbine location
ADCP deployment for the Tidal Power Project Deployment and Retrieval of the ADCP from the Bottom of the Channel Succession Study of coatings and materials Chris Blondeau and Juan Carlos video the substrate at the site of the piling installation, and test the depth of the overburden.
turbsitehydroids reef video Video on Tidal Turbine Project materials testing
Turbine site hydroid survey by Chris Blondeau and Juan Carlos Yabar, 2006

 

Pam and Jason from Archipelago Marine do their underwater survey of the location of the Piling Drilling for the Current Energy Project. Video on the Pearson College, EnCana, Clean Current Tidal Power Demonstration Project at Race Rocks

 

In December of 2007,The Pearson College Divers installed a set of junction boxes as part of a materials testing experiment for the tidal energy project.

Turbine Site Hydroid Survey- 2006

Chris Blondeau and Juan Carlos Yabar, did this survey to document the Invertebrates, particularly hydroids,sponges and colonial tunicates in the are where the turbine Piling was to be installed later in the year.

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Substrate analysis for the Tidal Energy Project

Chris Blondeau and Juan Carlos video the substrate at the site of the tidal energy piling installation. This is prior to the pile drilling operation for the Pearson College-ENCANA_Clean Current Demonstration Tidal Current Energy Project. They find bedrock in the area 30 cm under the surface at a depth of 24 meters of water.


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Invertebrate Scenes from the video:

metrid2

Metridium anemone with hydrocoral

hydroid

Hydroids

cribrinopsis

Cribrinopsis anemone and brooding anemones

bloodstar

Blood star and yellow sponge

generatorsLink to the Integrated Energy Project at Race Rocks

Ecological Monitoring for the Tidal Energy Generator

Pam and Jason from Archipelago Marine do their underwater survey of the location of the Piling Drilling for the Current Energy Project. They monitor area at ~18 meters depth. October 26, 2005Frequent visits from sealions frequently distract Juan Carlos as he takes the video.

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Blue water Diving — Pearson College Divers

Henry Steinberg, Julia Clarke and Laura Verhegge do their first tether dive with Chris off the shores of Race Rocks in Race Passage. The apparatus for the dive was constructed by Henry Steinberg, a Pearson College diver, as part of a project in his PADI Divemasters course. This type of diving is useful for research purposes when one wants to sample jellyfish, salps or other macro-planktonic life forms which may otherwise be damaged if collected in a towed plankton net. It is also necessary as a safety measure for drift diving when the bottom is beyond safety limits, and there are currents involved such as here in the Strait of Juan de Fuca.

Installation of Succession plates for the Tidal Energy project

This video shows the installation process for the tidal energy generator research project. This was carried out by Chris Blondeau and the Pearson College Divers in order to determine which surfaces discouraged growth in the waters at Race Rocks. As a result, Titanium was used in the construction of some parts of the generator as it was one of the metals most resistant to fouling.

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Link to the Integrated Energy Project

First Nations Divers at Race Rocks


November 2, 2003 : We hosted a group of divers from the Nass River area on a dive at Race Rocks. Accompanying the Divers were Matt Hill and his wife Joanne. Matt who comes from Dolphin Island near Prince Rupert, provided some interesting information about the interactions of the people of his nation with marine resources.
fndiver