Month: June 2017

Week three is a Little late

Now that the third week has come to a close and one half of my time aboard the R/V Atlantis is just about over I can really get a sense of what life is like working on a research vessel.  First off any standers of a normal workday are gone.  As one of my fellow Alvin workers said it best “everyday is like a Monday.”  We wake up early every morning barely coherent, look for that pot of coffee and go through the same routine.  With no weekends off and always have work to do you would think that this would make this life style unbearable but it is just the opposite.  For everyone out here the benefits out way the cost.  The biggest problem we’ll face is not the when the sub decides to misbehave but it is time.  When you’re working with a piece of equipment that is designed to withstand more then 400 times the pressure of earths atmosphere.  Along with having to have the sub ready every morning promptly at 7:30 so the science team can go down and collect the samples they need, time is not really on your side.  Though we have been very fortunate this cruse that there have been no major issues with Alvin, even something as simple as an unwanted ground in the electrical system can set us back.  When working in this type of environment the biggest key to success is work cohesion.  Being able to get along with your coworkers is so important in this filed because you have to spend so much time together under high stress situations.  As an intern the first thing I learned was to know when it was time to get in and help out and then when to get out of the way. 

 

We have had 16 consecutive dives now with 21 total dives schedule for the science cruse.  Keeping track of day-to-day events has been getting harder because everyday is the same thing and at this point it all starts to mix together.  One day can feel like a lifetime but one week can feel like a day.  Despite this I am still enjoying my time out here, I love the work and I’m enjoying the people.  We are all quite literally stuck in the same boat.  As the science cruse is coming to an end we are expected to be arriving into port either the 10th or the 11th.  Once then we will say our goodbyes and head back out for the engineering segment.  There are only 4 dives planed for the engineering cruse, were we will be diving to the subs current maximum depth of 4500 meters (14,763 feet).  For a better example most naval subs cat go below a 1,000 feet (304 meters).  At the depth of 4500 meters you will be experiencing 450 atmospheres worth of pressure.  With experiencing 14.7 PSI (pounds per square inch) in one atmosphere, Alvin will be experiencing 6,615 PSI at 450 atmospheres.  Once the engineering dives are over I will be staying on the ship for the 2-week cruse back to Woods Hole Massachusetts.  I am not quite sure what jobs they will be having me do during the transit but I know I will be put to work.

 

Now on to the more interesting topic of what did I do this week?  I am getting this blog out a little late again do to a network failure on Sunday and a series of unfortunate events on my behalf Monday night.  The week started out just like any other.  On Tuesday we had to take the battery that I have been working on out in order to begin cleaning of the battery hold for ship inspection.  The cleaning didn’t start till Thursday and lasted over into Friday.  Thursday was game night on the ship so a bunch of us got together and played some card games.  On Friday we had gotten to a new dive cite and this one was only around 400 meters deep witch is very shallow for this sub.  Strangely this became problematic because all the connectors on the sub are meant to perform at more extreme depths.  We ended up having to deal with a ground in a cable witch was caused by a small amount of water making its way into the connector.  We thought we fixed the problem the night before but the ground returned the fallowing morning and we had to postpone the dive till 11.  These problems continued and on Sunday the sub had to surface half way through the dive because we got a ground in the hydraulic motor connection. This completely prevented any used of the mechanical arms on the sub so the dive could not be completed.  We were able to quickly fix the problem and get the sub back into the water only 30 minutes later.  Sunday night we got a massive storm witch prevented any use of the network and with the only free time I have is at night I could not get the blog out then.  On Monday we moved the batteries back into the hold and I got to work prepping them for final assembly. Once returned one of the subs cameras stopped working and we’ve begun working on fixing that.   Monday night we begun transit to a new location and just as I was ready so send my blog post the ship changed heading and blocked the satellite dish once again taking down the network.  Tuesday, today I had finished prepping the batteries and we are planning to start assembly tomorrow.  That just about sums up what I did for the last week.

 

I also want to say I was suppose to have some images in the last blog posting but didn’t due to a complication wile up loading so I’m going to try again tonight.  If I cant get it to work I will post the images separately in an few days once we get back to port. 

Pictures from Scallop Leg 2

/files/marine/files/img_0773.jpg : Tied up in Lewes, DE

/files/marine/files/img_0777.jpg : Leaving Lewes Harbor

/files/marine/files/img_0783.jpg : We steamed north past Cape May, NJ

/files/marine/files/img_0799.jpg : I spent much of this leg operating the multibeam snoar, that reveals a map of the elevation of the ocean floor 

/files/marine/files/img_0809.jpg : We steamed past Block Island and its new wind farm

/files/marine/files/img_0812.jpg : The storm we navigated through

/files/marine/files/img_0816.jpg : Scallops!

/files/marine/files/img_0819.jpg : In some dredges we caught hundreds of scallops

/files/marine/files/img_0821.jpg : In others we caught boulders

/files/marine/files/img_0825.jpg : Massimo, one of the scientists, myself, and Jonathan, the engineers, collected sediment with the grab sampler

/files/marine/files/IMG_0829.JPG : Who needs a whale watch?

/files/marine/files/IMG_0835.JPG : Sunset at sea

/files/marine/files/IMG_0841.JPG : Welcome to Woods Hole, MA!

/files/marine/files/IMG_0842.JPG : The R/V Armstrong, the research vessel for Wood’s Hole Oceanographic Institute

/files/marine/files/IMG_0846.JPG : The Sharp tied up in Woods Hole

 

Week Three on R/V Sharp

This week was quite interesting, where I got a chance to see many different operations and learn a lot from KG, the senior tech onboard. The theme of this week was encountering a steady stream of small problems, as opposed to several larger issues onboard the previous leg.

Last Saturday, a very nice day, the scientists continued to tow the habcam near Long Island, close enough at one point that we could make out houses on the beach, so most of the crew headed up to the bridge holding their phones in the air trying to get service. We started the multibeam up again, but had issues with the computer freezing, so we opened up the unit and reset a chip which seemed to solve the problem. After a crash course from KG, I was operating the multibeam sonar on my own, adjusting settings as the bottom changed and sending profiles of the bottom to the scientists. I also installed a new camera on the stack pointing towards the dredging area, where I learned how to terminate the cable and secure connection points with splicing tape.

Sunday came with more multibeam and more freezing issues, so we took some screenshots of the issues and KG sent them to an expert on shore. I was assigned the task of writing up a procedure pertaining how to start up and operate the multibeam to help out future techs and interns on the boat. When I did my daily check of the SMS system, I noticed that the temperature and humidity were way off. We went aloft and opened up the sensor, which had water inside, so we replaced it with a spare that we had onboard. KG stressed the importance of always having spare parts while at sea. Monday started with me being awakened by the crash of pots and pans in the galley; another rough day at sea. We were on the high seas, 50 miles off Nantucket, getting prepped to start the first multibeam survey of the canyons for suitable juvenile lobster habitat. It was very difficult to watch a computer with all of that rolling, so I terminated more ethernet cables and worked with KG to learn the model numbers and names of CTD sensors.

The multibeam was having issues finding the bottom due to the contant pitching of the ship, and on Tuesday we eventually pulled out the habcam, which had a ripped open termination and a point in the fiber optic cable where some of the strands had come unlaid. We cut the cable past that point so the scientists could work on a new termination, a long process that could take more than a day. So instead we headed to the first dredging site, where the science wanted to run a CTD cast to obtain water quality data at depth. KG showed me the process and walked me through the entire thing, from setting the device up, dropping it in, recovering water samples, and recovering it with the winch. Once this was complete, we began dredging, going through the motions of launching and recovering the large, rusty dredge, then jumping on the table and shoveling our catch to the scientists who sorted out the organisms they wanted. Up here, our catch was much different than the southern leg, with much less sand, more mud, and WAY more scallops, as well as flounder and mean looking goosefish. Between dredges, KG, myself, and Jonathan, one of the engineers, shucked scallops for the cook. It was worth it, because the next few days we enjoyed great meals like bacon wrapped scallops and scallop ceviche.

Wednesday was foggy but much flatter, and we came out on deck to find a winch we need for dredging leaking hydraulic fluid. All we could do was wrap it until we got to port and hope it doesn’t get worse! We did a few more CTD casts between dredges, and KG let me operate the computer controlling the CTD. He also showed me how he processes the data, and let me explore the program that cleans up the data and produces nice looking graphs. Dredging became more tedious as we mostly recovered rocks, some quite large, that we had to pick up or roll off the table. During one of the haulbacks, there was a break in communication and I left a line tied down that ended up snapping off a cleat. It was not a critical piece, though, but it’s always important to know what is happening on deck! On the last dredge of my watch, I talked to Sean, the relief captain, up in the wheelhouse, who showed me how he maneuvers the boat during a tow. It was a long day, but I learned from a lot of different people!

Thursday, another foggy day with a little more roll, began with a few dredges, then it was time to steam to the grab sample site. Once there, we lowered the keel and turned on the ADCP to monitor currents at the stations. KG, Jonathan, and I worked to get the metal grab sampler in the water and winch it down. Due to the roll of the boat and a wire that was not marked with any sort of depths, it was hard to tell when we had hit bottom. After many hours, we only had one sample, and had to move on to another multibeam survey and more dredging. Luckily, during the second survey, the multibeam worked great under my control and science was very happy. Another problem soon struck, when the winch computer was no longer reading tension as we were launching a dredge, and later the CTD winch left the device hanging halfway down to the bottom for nearly an hour. KG and I went down to the engine room to reset the computer, but it wasn’t quite done causing problems.

Today the habcam was back in the water, and it was a nice, sunny, calm day. We were doing habcam tows off Cape Cod and working our way back south to Nantucket. I was monitoring the multibeam with no major issues, until there was commotion in the lab due to a winch tension spike, everyone thinking we had struck bottom hard with the habcam. To pass the time, KG had me work on a spreadsheet that gave information about max depths of various sensors. However, we pulled it up to reveal no damage, and it was likely another fault in the winch computer. We recalibrated the computer and dropped the habcam back in, but KG stressed to Sean and the engineers that this is an issue that needs to be looked out by a professional at electrical equipment. Later, KG gave me a brief introduction to the different types of serial and VGA connections and how computers “talk” to each other. By Sunday afternoon we will be tied up in Wood’s Hole, MA where I will post more pictures. Until then!

 

Huxley

 

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