WET-NZ Ocean Testing 
at the Northwest National Marine Renewable Energy Center 
Issue: # 8
August 22, 2012
TriAxys Buoy

Day one of deployment concluded successfully, with two of the three WET-NZ mooring legs installed.  The weather this morning is perfect - no fog, wind or chop.  Today will be a big day if the sea breeze holds off.  Kopf, Daly, and Petrillo will be on the NRC Quest today, Klure and Branje will be on the dive boat, and Gowler will be on the OSU RHIB. We hope to attach the WET-NZ, deploy the third mooring leg and complete the initial ballasting.  If all goes well, NNMREC-OSU hopes to attach the umbilical to the Ocean Sentinel today as well.  

 

Stay tuned for on-the-water updates today as we deploy the WET-NZ! 

 

As always, check out the Recent Updates if you missed something, and just let us know if there is someone you'd like us to add to the distribution list.

 

Best Regards from your Deployment Team:

 

Justin Klure            Steve Kopf            Patrick Branje

Phase I of Mooring Installation Complete

Team to Deploy Last Set of Anchors and WET-NZ Today  

  

Yesterday, we completed the first phase of the WET-NZ mooring system installation, deploying the two seaward mooring legs.  The NRC Quest arrived at the NOAA dock in Newport at 0345, and the Northwest Energy Innovations, Sound & Sea Technologies, and the Bluewater Technologies team boarded the vessel at 0500. 

 

 

We arrived at the project site in about an hour, and by 0725 the ship's anchors were dropped and installation was underway.  Using the massive deck winches, the crew lowered the first mooring buoy into the water over the stern of the boat.  By 0815 the first 12,000 lbs. drag anchor was deployed, and the 6,000 lbs. clump weight anchor was on the bottom just twenty minutes later.  The final component of the mooring leg, the subsurface float, was deployed at 0920.

 

  

As the fog began to lift, the ship moved into position for the second mooring leg installation and dropped her anchors again. By 1145 the second mooring buoy was in the water, but a snag in one of the mooring lines delayed deployment of the second set of anchors.  The tangle was cleared though, and both the 12,000 lbs. drag anchor and 6,000 lbs. clump anchor were on the bottom by 1330.  The timing was perfect, as the sea breeze kicked in at 10 - 12 knots just a few minutes later.  With the deployment of the second subsurface float at 1400, installation of the second mooring leg was complete.

The OSU RHIB team, with Ken Serven at the helm, checked the distance between subsurface floats with Bluewater's suitcase GPS.  Once we confirmed the anchors were correctly oriented on the bottom and the lines properly tensioned, the Quest raised her anchors and headed back to Newport to rest up for today's deployment. 

Today's Updates
Phase 1 of Mooring Installation Complete
 
Recent Updates 
  RecentUpdates
 
Regional Forecast

  

A thermal trough will strengthen along the coast today, and then weaken Friday night.  Strong north winds and choppy wind driven hazardous seas will develop today, subsiding early Saturday. Another trough is expected to approach the coast this weekend with winds becoming southerly over the coastal waters late Sunday and Monday. 

      

Ocean Conditions
NOAA Buoy
Station 46050 
20 nm West of Newport

7:50 AM PDT

 

 Wave Ht 2.6 ft

Avg Period 4 s

Wave Dir NW

 

Wind Sp 9.7 kts

Gusts 9.7 kts

Wind Dir N

 

Air Temp 59.2 F

Pressure 30.09

 

H2O Temp 57.4 F