Saturday, August 2, 2014

Emily: Adventures in Science & Technology!

We have continued to be busy with our different types of scanning off the coast of Montenegro.  Due to the continuing swells on Thursday, we stayed within the harbor walls to work on the AUV.  To do this, we needed to bring down our rescue raft.  This involved using the crane to lower it off the top deck and into the water.
Lifting the rescue raft off the top deck.  Emily Kovacs

Once we got the raft in the water we waited for Cameron to create a mission for the AUV to run.  He had gotten GPS coordinates for the break wall at the ports entrance.  The plan was to scan the wall at a 1 meter depth to find out what the underwater area is for future test missions.  After working through some technological errors with the AUV, we were ready to set out.  Myself, Cameron and Richard went out to do a hour long scan.
Getting ready to scan the break wall.  Emily Kovacs
Crew heading out to test.  Emily Kovacs


Into the harbor.  Emily Kovacs

Upon reaching the break wall we readied the AUV for the mission.  Without difficulty we lowered it into the water and sent it off on its route.  We followed it in the rescue raft about 10 meters behind it and watched. 

After it reached about 300 meters, it popped back up at the surface to make its turn for the next lap.  To our dismay, it moved closer to the wall.  Once an AUV is on a mission, it is very difficult to stop.  At this point we watched the AUV go into the concrete slabs making up the break wall.  We directed the raft towards the shallow rocks, careful not to get too close.  We have a hard bottom which could have cracked on the concrete.  I luckily spotted the AUV hiding within a crevice, undamaged.  It must have slipped in through a hole.  Cameron was able to jump onto the slabs to lift out the AUV.  He then passed it to me on board and we managed to push off the wall without any problems.  The whole time this was happening the AUV was still motoring on trying to run its mission.  Poor guy, just wanted to do it’s job.

Yesterday the seas were calm enough to go back out and attempt AUV scanning and sector scanning.

The crew broke up into teams and we set off for our missions.  Our focus today was working further with the sonar image data and assisting on the back deck with the cables.  I enjoy learning to use the sonar imagery.  It is very rewarding to view these ancient ships on the sea floor.  We sector scanned two wrecks yesterday and were able to get full scans of each one.
Sector scanning wrecks on Loren's laptop.  Emily Kovacs

By time we finished up and got back to the dock the crew was ready to relax.  For the past few days we have had new “neighbors” on the dock.  The Italian navy ship, the Palinuro, has been keeping port with us.  They had an open house last night which allowed everyone to see the ship’s deck.

Palinuro.  Emily Kovacs

The ship was absolutely gorgeous.  All of the intricate woodwork and laying of the lines was perfect.  From a brochure they gave us, the ship was originally built in 1934, in Nantes, France.  In more recent decades it has been used for training Petty Officer Cadets.
Lines on the Palinuro.  Emily Kovacs

Main mast.  Emily Kovacs

Bow of the Palinuro. Emily Kovacs


Well, we just set off the AUV on today’s mission and are currently en route to sector scan.  The AUV should be running for the next 6 hours.  “Fingers crossed” everything goes well. 

 We will keep you posted soon!
Emily

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