Category: MATE Blog Archive Page 73 of 89

Posts that were imported from the historical MATE blog at marinetech.org

Fun with Dredging

         The dredging has set in full force. We dredged for three days nonstop save for the occasional repair to the dredge. My job is assisting in bringing a dredge up out of the sea onto the table, dumping the contents, and setting it it back out again. Once a dredge is completed the deck has to be washed down with the seawater hose as there is a surprising amount of organic debris left from the dredge. A dredge takes around an hour to complete depending on what we catch. The ease of the dredge entirely depends on what is hauled up. Those that are filled with large rocks, are sandy or muddy, and those that are extremely large in quantity are the hardest to shovel and sort. I’ve seen all sorts of amazing creatures that were caught in the dredge. Not only have there been scallops, but I have seen octopuses, squid, mussels, monk fish, skates, hermit crabs, sand dollars and sea stars at the top of my head. The first few days of the week were consumed by continuous dredging and made for quick but arduous watches.

         Shortly into the beginning of my watch on June 1st, we did one last dredge before we secured the dredge on deck. It was time to head into Woods Hole, MA to refuel. We steamed into port at around 9:30 am and had a couple of hours off until it was time to head out again. Before I could go and explore the town, we had to dump the garbage. This was a fun process of chucking trash bags over the side of the Sharp onto the dock where the bags were then brought to the trash bins nearby.  I enjoyed wandering the town and in particular enjoyed the food and coffee at a cafe called Pie in the Sky. All too quickly, it was time to head back to the ship and we were off by noon.

            The next watch, the midnight since leaving Woods Hole, the sea had picked up considerably and there were strong winds. We were not able to dredge in this weather and all we could do for hours was wait for the weather to die down. By daybreak the seas had calmed and we were able to place the Habcam in the water. As Habcaming requires nothing of the techs, the day was spent peacefully and quietly up in the bridge. The peace was broken by the time my next watch began on the 3rd. When I woke up we were back to dredging since the one of the computers of the Habcam had broken. One of the dredges we pulled up that early morning was of note, we had caught ourselves an old lobster trap, two lobsters included! After breakfast we got great news from science saying that they fixed the computer and the Habcam was ready to be put back in. Once it was deployed, there have been no further issues and we have been Habcaming up until today. Tomorrow we will be back to dredging but we had a certainly had a nice break.

See  you next week,

Maia

R/V Pelican- Almost there!

Hello everybody!

By this time tomorrow I will have boarded my flight from Philadelphia to New Orleans, marking the beginning of my eagerly awaited internship with the Louisiana University Marine Consordium.   I just finished my Sophomore year at Maine Maritime Academy majoring in Marine Science and Small Vessel Operations and am eager to incorperate everything I learned at school to my duties as a Marine Technician intern. 

I just finished packing all my things and by some miracle everything fit! Looking forward to stepping foot aboard the R/V Pelican and meeting Nick and the rest of the crew tomorrow. I’m a little nervous, but I am eager to get into the swing of things. 

 

Talk to you soon, 

Julianna

Quick update

Been awhile since my last detailed post, but time flies and I’ve been way too busy to even muster the urge to type anything useful.  

This last week I had the fortune to work aboard the USCGC Healy for a 4 day shakedown cruise.  The goal of a shakedown cruise is to get all of the science and technical aspects working since the ship had been sitting essentially unused for a few months.  Dusting off the cobwebs on computer based systems are always fun because they always seem to turn on with new issues. Overall our cruise went well, with the main exception being the 4 hour delay due to engine failure before we left the dock.  Our main issues revolved around the Met System that displays the flow through information, the multibeam, and the CTD.  

On the cruise I learned and practiced many useful techniques.  Its amazing how every technician you meet has a different way of doing things, a prime example being CTD terminations.  On the shakedown cruise my OSU tech coworker and I got to work with some awesome Scripps technicians since the Healy shipboard tech support group is made up of a collaboration of OSU and Scripps (STARC) and the Coast Guard’s MSTs and ESUs.  Overall it was a great experience.  

As for present day.  I am currently back in Corvallis Oregon working in our office space.  I am still inventorying the multiple boxes of Triaxus related gear before I can even think about piecing it together. However I only have till Sunday before I fly off to meet the R/V Oceanus for a month at sea.  I am hoping my coworker starts to feel better otherwise I may be the lead marine tech running this upcoming cruise.  It would be entertaining and fun to run the cruise for sure, but I still have to read over the cruise plan and expected science to be completed. 

 

Transitions

            In the past week, the R/V Sharp has transitioned from Leg 1 of the scallop survey to Leg 2. While Leg 1 almost entirely used the Habcam (as pictured above), Leg 2 and Leg 3 are a hybrid of dredging and Habcaming. As such, the last days of Leg 1 were spent with the Habcam in the water. We pulled the Habcam from the water on Sunday so we could steam back and make Monday’s 3 pm high tide in Lewes. We were doing well for fuel so we started up the third power generator, thus increasing our speed. The Captain wanted a large cushion time for arrival since he did not know how bad boat traffic would be on Memorial Day. We arrived at Lewes before the tide was high enough to let us in so we had to lurk outside for roughly 30 minutes before moving in. It was pretty funny to see all the Memorial Day weekenders out on the beach staring and taking pictures at us. We spent two nights docked in Lewes cleaning the ship for the next leg and changing out the crew and scientists. Of the original twenty of us, only three (myself included) would be staying for Leg 2. Most of my time was spent helping prep the ship by vacuuming, taking out the trash, and changing the linens. The crew wanted to take advantage of being on land so the workday would end in the afternoon. I spent my free time wandering around Lewes and enjoying the nice weather.

            All too soon, Wednesday at 4 am we left dock. Since I was rooming with a volunteer scientist, I had to be put on the science watch schedule. My watch changed from 6 am to 6 pm to midnight to noon. Adjusting to new times had been difficult and I have been experiencing seasickness despite the nice weather. However luckily, both Wednesday and today there was minimal work for techs and I have been able to work on recuperating. There was some Habcaming done but the real work, dredging, begins this afternoon while I sleep. I will be kept very busy with the dredging schedule for the rest of the leg.

Here’s to fair weather and yummy scallops!

Maia 

RV Langseth: First few days on the boat

            I decided to delay my second blog post because of the lack of news. I arrived in New York yesterday and made it to the boat just in time for dinner. The guys I’m working with have been showing me how things are done around here and explaining a little bit more in depth of what we will be doing.  I had some down time to explore the ship and start to figure out where everything is. This morning another tech and I checked out the birds that will go onto the streamer to make sure the program had the correct serial numbers to be able to communicate back and forth. After the morning everything slowed down a little bit while we were waiting for other people to arrive. I also helped to replace a UPS(Uninterruptible Power Supply) to keep the electronics running in the event that we lose power. Tomorrow will be busy because we will be spooling the P-cable that we will be towing.

            I found out that we will not be leaving port until Monday, which will give me time to get anything I may need while out at sea. The cruise plan is to complete a survey of an area approximately 20 miles off of the Barnegat Inlet in New Jersey to about 150 miles offshore. I was also informed that I will be working the day shift which is from 12 noon to Midnight while we are sailing. In the next few days as we prepare to leave I will be trying to get onto this schedule and I will make another post later on in the week as I get more involved and learn more about what we will be doing.

 

-Tyler

Pre-Internship Hello

Hello!

My name is Amber Batts.  I’m a recent graduate from the Marine Technology program at Cape Fear Community College in Wilmington, NC.  I’ve been working towards this opportunity since my first semester at CFCC in August of 2013 so I couldn’t be more honored and proud of being selected for this internship!  I hope I represent the Marine Tech program well.

I’m simultaneously in the process of moving out of my apartment the same week I’m scheduled to leave for Delaware; so I’m anxious and excited (slightly nervous) about the next several months.  But if anyone is familiar with the program at CFCC, then you know we have all been trained to keep our cool under pressure; thank you Mark Miller 🙂

I do love to photo document everything so I look forward to sharing my learning experiences aboard the Sharp!

Amber Batts

 

 

Week #1: Settling In

         The first week on board the R/V Hugh R. Sharp has gone well! I was picked up at the tiny Salisbury airport by KG, one of the technicians that will be on the second and third leg of the survey, and his visiting friend. They drove me from Salisbury, Maryland to Lewes, Delaware. Along the way we had lunch at a local diner and bought some heavy-duty foul weather gear, including a pair of rubber steel-toed boots. Sharp was docked next to another vessel and an associated administration building. The building had offices as well as workshop space to maintain the ship. I was given a tour of the Sharp and was introduced the crew. Afterwards I was given time to unpack, grab dinner in downtown Lewes, and have an early night to recover from my 5 am flight. Tina moved in that night as well. She’s an independent contractor technician that is with us for night watch of the first leg. On the second day, we started work at 7 am and I mostly followed Max around, the technician that will be on all three legs of the scallop survey. The ship was already prepped and ready on the tech side of things so I mostly watched the scientists ready the fiber optics cable, learned my way around the ship, and learned the daily duties aboard the ship. We had lunch on the ship and the crew went home about 3 pm to pack and get ready for the upcoming cruise. I had dinner again in Lewes. It’s a nice mile or so walk into downtown from where we were docked.

         The next day, everybody was loaded up and we set to sea. During the day we test deployed the Habcam, the CTD, and the dredge. The Habcam is a giant apparatus that has  cameras and various other equipment attached to a frame. It is dragged behind the ship just above the sea floor and it takes pictures of the sea floor, including scallops. The dredge on the other hand scrapes the sea floor, collecting everything there, and dumps out the haul on a massive metal table to be sorted through by the scientists. The scientists are transitioning over using the Habcam more than the dredge to lessen their environmental impact. Another vessel is dredging the same area as us so the first leg uses only the Habcam while the second and third legs will alternate between them. However sometime during the test deployment, one of the main power connectors to the ‘brain’ of the Habcam flooded from an imperfect connection. We went back into Lewes that night as it was unclear whether the Habcam’s ‘brain’ would work once dried out. We docked for a couple of hours until it we found out from science that the Habcam is fully functioning. We headed back to sea and continued on track.

            In the following days, I’ve fallen into a routine. Watch is from 6 am to 6 pm with breakfast at 5:30 am, lunch at 11:30, and dinner at 5:30 pm. I spend most of my time in the bridge with the rest of the crew that’s on watch. I have been reading (finished 4 books so far) and chatting with the crew. Everyone is very friendly and science will enthusiastically talk about what they’re currently working on. The Habcam does not require anything from the techs so days can be slow. There have been some equipment issues that keep us on our toes but other than that, we only have to do a daily check on the systems. The daily check includes cleaning a filter, washing down the CTD, and double-checking that the weather readouts are accurate. All in total, it only takes 20 minutes or so. Today, we tested the dredge again and got some sea stars, sand dollars, fish, crabs, and scallops. During a dredge, Max and I are in charge of attaching the dredge to the winch and assisting getting the dredge back on board. We have to shovel the catch into piles so that the scientist can sort it and wash everything down once finished. All in all, I’d say that things have gone well. The weather has been calm and the trip has been fascinating. See you next week!

– Maia

From parts to product

During my 6-month internship I will be working on rebuilding a MacArtney Trixaxus.  I am absolutly thrilled to have the oppertunity to help my ship regain an extremely useful piece of equipment, however I am also somewhat terrified as all of those boxes contain random parts, cables, and electronics that I don’t quite undersatnd at this point.  

The above image was taken on the R/V Point Sur and stolen from Wikipedia.  

As for what a Triaxus is….I’ll leave the description to the MacArtney website article: 

“ Adding a new dimension to towed vehicles, the TRIAXUS is the natural step forward from the existing 2D towed vehicle technology to a true 3D towfish. The TRIAXUS uses state of the art computer technology and fibre optic telemetry for vehicle and sensor communication.

The TRIAXUS features flaps for vertical as well as lateral control. A powerful industrial PC controls the vehicle based on input from the onboard vehicle control sensors according to the preprogrammed flight path.

The TRIAXUS is developed for high-speed oceanographic data acquisition work, and is designed to undulate between 1 and 350 metres*. Lateral offsets of up to 80 metres to either side of the ship is possible, enabling the vertical profiling to be carried out in an undisturbed water column.

Towing speed* between 1 and 10 knots and vertical speed* of up to 1 metre per second are possible. The TRIAXUS has been designed using the latest carbon fibre moulding technologies and the Danish Maritime Institute (DMI) has supplied the hydrodynamic design. The embedded telemetry system is based on the successful NEXUS fibre optic multiplexer system, allowing interface of up to 9 additional sensor packages using the Plug and Play principle.”

RV Langseth: Getting ready to go

Hello everyone,

My name is Tyler Hackett and I have been choosen to be the MATE intern aboard the RV Langseth. I am currently a senior in Ocean Engineering at Florida Institute of Technology. My main focus within the field of Ocean Engineering is Marine Technology which includes Remotely Operated Vehicles, Instrumentation, and sub-sea technologies. My senior design project that was completed last year invloved a mechanical and electrical overhaul of ROSCo (Remotely operated sea crawler).

I am very excited to have this opportunity to spend time at sea doing research that I have a passion for. I have already started packing for my departure next tuesday. While on board the Langseth we will be testing and using several different types of marine instruments. Some of the instruments that will be used include ADCP (Acoustic doppler current profiler), 3D Siesmic scanners, 2D seismic scanners, gravimeters, and magnetometers. Throughout my internship I will be going more into depth on how each of these instruments work and the data that can be obtained from them.

 

Adios San Diego, Hola Portland! What we do while in transit …

During our stop in San Diego, many things on the ship changed. We disembarked the science techs and all their gear, which I must say makes the ship look so much bigger, garnered provisions and got the ship’s winch back. The secondary marine techs were switched out and once under sail, we fired-up all that data acquiring equipment that we run and maintain as SOP (standard operating procedure). So now what? Today has been a day like any other while in transit. We made work lists and knocked out the items on the list. For example, we removed sensors from the CTD that are due for calibration, replacing them with ones from the ship stores, ordering replacements for the store from shore to be brought with the oncoming tech and updating all the logs that pertain to that activity. We trained on CTD terminations, so in the event there is a problem during operations, we will be prepared to make that happen efficiently. We spend our day ensuring that all the details that make operations efficient and smooth are addressed before the heat is turned up. We prepare. We anticipate. We pay close attention to the details, so the details don’t come back to haunt us at a critical moment. In addition, as we are headed for dry dock we have to coordinate with the engineers that power requirements are meet as we have certain equipment that needs to remain online no matter what state the ship is in. And, for me personally, it’s time to start tidying up my internship and personal details, like this final blog and laundry. The party’s over, so turn the lights out. Adios, Thomas G. Thompson.

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