Category: Host Page 28 of 89

Week 1: Atlantic Explorer

My introductory post is here

I arrived in Bermuda on Monday just before a brief downpour of rain. Just after boarding the RV Atlantic Explorer, I was informed of a change of plans. Our first cruise was meant to leave later in the week, giving me a couple days in port to get ready and acclimate to the ship. However, in response to the approaching tropical storms, the departure date was moved up to Tuesday. Lydia, my mentor and one of the ship’s marine techs, immediately started giving me a tour of the place. At the same time, our visitors from NIOZ (Royal Netherlands Institute for Sea Research) brought their equipment aboard and prepared for their experimentation. 

 

Once the cruise got going, each of our days were basically laid out the same way. We deployed a VMP 6000, a device which belongs to our visitors, then lowered our CTD (pictured later in this post) to a depth just above the bottom of the ocean, raised the CTD back up, recovered the VMP 6000, then set out to find and recover mooring lines, one line each day, that our visitors deployed over a year ago. 

 

Unfortunately, however, recovering said mooring lines was never an easy task. Out of the four lines, three were missing the uppermost section, making them difficult to bring aboard. One was missing entirely, perhaps still underwater, perhaps broken and floating off to who knows where. Every day, it took hours to locate the mooring lines. I spent those times circling the bridge deck, staring into the ocean looking for small buoys that marked the upper end of the mooring, but finding nothing but water and sargassum. Once a buoy was spotted by someone aboard, we then spent hours hauling the lines onto the ship by winch, a process that generally stretched well into the evening.

One of the mooring line’s buoys

While I may seem a little unenthused by this tedious process, I want to make it clear that I’m having the time of my life. Being able to have a hands-on interaction with this research project is very fun. I enjoy hearing about the NIOZ team’s various educational backgrounds, and their past projects. As the week goes on, I am able to do more significant tasks. Lydia has been finding good places to slot me into the process of CTD deployment and mooring recovery so that I can get some experience under my belt.

 

Running the CTD has been my favorite part, by far. Everything from setting up the device, launching the device into the water, running up to the bridge to begin data collection, communicating with the winch operator, watching the data plot itself, and bringing the device back on board with a winch and three control lines (one which I get to handle), is an intricate and engaging process. On the last day of CTD deployment, just for fun, our visitors sent down a mesh bag with styrofoam cups that were compressed by the extreme water pressure.

Me climbing on the CTD
 

Outside of the work, I am adjusting to the ship just fine. The food is wonderful, everyone is welcoming, and I sleep very well, even when I’m a little seasick. The onboard stationary bike is especially delightful. In fact, my laptop is zip tied to the handlebars as I write this. We are coming into port soon, and I look forward to exploring Bermuda for a bit before hurricane Franklin hits.

Next week I’ll be starting on some personal projects, and I’ll get to tell you about it in my next post!

 

7th week at sea with JASON/WHOI

My oh my, how the time is flying by! Another week in the books from Monday August 14th to Monday, August 21st of the first leg in the Kelley Cruise series. This leg focused on utilizing JASON to carry down equipment ranging from BEPs (benthic environment profilers), to junction boxes (power supply boxes essentially), and undervators which are extremely large and heavy under-water elevators (thus the name undervator) which we used to transport camera and light systems to the seafloor.

We started out of port on Monday and immediately switched to our 12-hour shifts. I was assigned to the 12am-12pm shift, which took a couple days to adjust to. This is set up so teams can work 24/7, with each team consisting of 5 people: 2 pilots, 1 engineering position, 1 navigator, and 1 data/support person. My role continues to be in the engineering position. This expedition entailed multiple dives each shift usually. We would latch JASON onto the science equipment on deck, crane it over, and gently fly it to the seafloor where the rov would detach, assemble, plug in, and turn on these pieces to start collecting data. Once completed, JASON would then load up the older equipment and bring it up, where it was unloaded on deck. This swapping of equipment was done quickly but carefully. The larger loads can be dangerous to launch with JASON, especially when applying the tether floats in large swells. The load sway can create slack in the tether cable and then snap back with thousands of pounds of force, so communication with the football handlers (myself included) and the crane operator were very important.

Our multi-dive shifts continued throughout the week until the weather worsened with high winds, waves, and large swells. Unfortunately, this led to a weather hold which lasted Saturday and Sunday. By Monday morning the weather calmed, and we were able to get back to diving! We started out at an 80-meter site, which is a new one for me! These shallow dives can be very challenging, but we were able to launch a dive test first at 9am and successfully completed it. By 11:15am we recovered JASON and finished post dive checks so that the next shift would be dive-ready!

We only have 1 more day left before returning to port, but the new experiences I have gained in the last week alone is incredible! I look forward to what tomorrow brings!

Tip of the week: “Team building is a must.”

In a career like this one, you become close with the members of your team not just because you are on a ship for weeks on end, but because you work together for a goal: to maintain and operate JASON to complete all science objectives. All aspects of doing this requires a level of trust and respect, knowing that we each have a vital position in making this happen. There was no better representation of this than a few days ago, when the weather worsened, and my team had to recover JASON carrying a heavy BEP in the dark. Myself and another team member were removing the tether floats, timing each one just right to avoid the dangers of the slack-snap but without seeing the wave actions. Thankfully, our crane operator had a light out to monitor the water and would call out to us when the small few seconds of a window would open for us to safely get in and remove a float. Yes, this process took some time, but we were able to finish it without injury, and safely load both JASON and the BEP back onto the deck. Without this trust and communication, the likelihood of a serious injury happening would be extremely high. I consider myself privileged to be working alongside these amazing individuals.

 

Week 0 – Haley Holcomb

Hi! My name is Haley and I’m going to be graduating from the University of California, Santa Barbara in June. I am studying mechanical engineering and am interested in developing underwater vehicles and oceanographic instruments. 

I am flying into Oregon on Monday to meet up with WHOI’s Sentry Team and board the R/V Atlantis. We will be at sea from Wednesday the 23rd until September 17th supporting research on the Endeavour Hydrothermal Vents. We will first collect CTD profiles directly over the two sites to calculate the heat output at each vent and to collect plume samples. Once that data has been recorded, we will deploy AUV Sentry to survey the area around the sites. 

I have gained some experience with this equipment working with the Coastal Oceanography and Autonomous Systems Lab at my school. Our most recent project culminated in a trip to Maryland to conduct field work with our AUV on the Chesapeake Bay. This was my first experience working on a research vessel and I loved every minute of it, but we were only at sea during the day so my trip with the Sentry Team will be my first time living aboard one. I’ll attach some pictures from that trip!

Week 0 R/V Neil Armstrong: Intern Introduction

Hi everyone!

My name is Cassie Ferrante and I will be the UNOLS-MATE intern on the upcoming R/V Neil Armstrong voyage. We’re scheduled to sail from Reykjavík, Iceland to Greenland, then back home to Woods Hole, MA from the end of August through September. Our main science objective is to recover and replace the NSF Ocean Observatories Initiative (OOI) Irminger Sea Array in an area southeast of Greenland.

Some background on me:
In 2020, I graduated from Colgate University in Upstate New York with a degree in Marine-Freshwater Science. Due to covid travel restrictions, I participated in my study abroad program after graduation. In 2021, I joined Sea Education Association’s Ocean and Climate Program, sailing from California to Hawaii. I absolutely loved sailing and couldn’t wait to get back on the water. Last year, I sailed on the NOAA R/V Okeanos Explorer as an explorer-in-training, a similar internship program to this one except more of a focus on seafloor mapping. Since then, I’ve participated in two terms with the NASA DEVELOP program in Wyoming and Alabama using NASA Earth satellite observations to address local environmental concerns. 

I’m thrilled to join the Armstrong and to meet everyone soon!! I’ll be traveling around Iceland for a few days before meeting the boat. 🙂

Intern Introduction

Greetings Everyone!

My name is Nikko Hernandez and I am a recent graduate from the Florida Institute of Technology having received my Bachelor of Science in the field of Meteorology. Since my graduation, I have worked as an environmental specialist. I have since stayed with the company until being selected by the UNOLS-MATE Program and have taken a leave of absence.

While I am a new to both residence aboard a vessel and the maritime field, I intend to be adaptable and broaden my viewpoint. I also hope to apply the skills I’ve gained during my employment and from my hobby in automotive repair to strengthen my foundation. I am an avid learner and strive to constantly improve myself, I am incredibly grateful for my selection onboard the R/V Marcus Langseth!

6th week with JASON/WHOI

6th week with JASON – WHOI

Monday, August 7th – Sunday, August 13th

The new week marked the end of the Orcutt Cruise as we began transit back to port. Unfortunately we hit a few “bumps” in the cruise and are heading home with a faulty winch/level-wind system and an elusive ground fault in the temperature probe that we have been unable to track down. The demob kicked off with emptying the vehicle’s oils to remove science cables from the j-boxes, repeated test casts to try and identify the level-wind issue, and clearing out the rov’s front basket to prepare for the next mission.

Once at port, the team detached JASON’s sled and swapped it out for a heavier, slightly shorter sled made for the heavy lifting Kelley Cruise. The last cruise is actually broken up into 4 legs, each lasting between 1-2 weeks and will go until the end of my at-sea internship, approximately September 20th. The days this week were spent mobilizing for this new, highly-technical cruise. I have been informed that when we leave port, the first dive will be within a couple hours and only 80 meters deep. We will be launching JASON up to 5 times a day to transport equipment to the seafloor, bring up old set-ups, and make adjustments/altercations as requested by the science/engineering party. The shifts will also be changing to 12 hour on/off shifts. Each shift will consist of 5 people; 3 in the control van and 2 on deck for launch/recoveries. This is a welcome change from the split shifts primarily because during your 12 hours off, you get the full 12 hours. Even if there are issues with the vehicle, the shift that is on is the only one that responds.

The weekend was spent reterminating the tether cable and completing a pull test. After that was successful, I was able to spend an afternoon prepping and splicing the optical fibers, fed it into JASON’s mainframe, connected and tested them to ensure acceptable light levels. It was my first solo optical fiber term and I was able to do it next to the vehicle, during high wind gusts, and constant crane operations overhead. It tested my focus but I really enjoyed doing it!

By Sunday, we finished all repairs and maintenance and were ready to leave port. Unfortunately, due to high winds offshore, the departure was pushed to tomorrow. I am looking forward to the new style of dives and fast-paced, technical aspects of this cruise.

Tip of the week: “Treat yourself”

It can be hard being away from home/family for long periods of time, but one perk of coming back to port is that you can receive packages that either were sent to you or that you ordered. Since coming out, I have ordered some colder-weather gear and it was almost Christmas-like when we loaded everyone’s mail onto the ship. Some people get mail from their loved ones, and others get the packages and shipments they purchased while at sea. It is also a nice treat to order some snacks or healthy options (whatever you prefer) to have while you are working. There are some snacks/food in the mess hall, but there is something special about having your own little snack station at your desk area. The comfort of your favorite treat is a little reprieve you can get while so far away from home.

For me, I like to have a bag of jerky, honey roasted pistachios, peanut butter m&m’s, electrolyte packets to flavor my water, and protein powder to have. It is a little mix of healthy and snacky that suits me just right!

Week 2: Over too Soon

During week two we hit our stride with diving and in turn, I feel like I got into a routine. During the cruise, I worked the 8-12 shift, working 4s was a new concept to me. This took some initial adjustment as I was unable to get a full eight hours of sleep in one go. I eventually settled into a routine of sleeping 6 hours at night and taking a two-hour nap during the day. We continued to have fantastic weather and we even saw the northern lights! I don’t think we could’ve asked for better conditions. 
 
Despite our trouble launching at the start of the trip, we eventually had back-to-back successful dives and even found ourselves ahead of schedule at one point. When this happens the Jason team allows time for pilot training, during which I was allowed to pilot and operate the arms! Being able to control Jason was easily the highlight of my trip, it was such a cool experience. The breakdown of diving operations is fascinating to me. On each watch, three operators act as pilot, engineer, and navigator. The pilot is responsible for the operation of the vehicle and dictates to the rest of the team how to assist the vehicle. The navigator’s primary responsibility is to coordinate with the bridge on moving the ship, and the engineer helps run the cameras, winch, and auxiliary Jason functions (like the hydraulics and power).
 
Further into the cruise, we ended up having more difficulties. The level wind system to coil cable was acting up and the team spent much of their free time trying to fix this issue (including the transit back to shore). Once on shore we had a post-cruise party and continued maintenance Jason. I departed on the 9th.  As quickly as it started my time aboard the Thompson has ended, I feel so lucky to have had this opportunity. It has truly been life-changing

My brief stint as pilot:

Me assisting in post dive check of Jason:

Week 4: Distinguished Visitors + Transit to Astoria, Or.

Hey all, this is Mija Wheeler from the RV Atlantis with the Alvin Crew. Since my last post, the R/V Atlantis had the opportunity to host distinguished visitors from ONR, NavSea, the National Science Foundation, and WHOI. During this time, the Alvin Ops team was doing two “bounce” dives daily for a total of three days. This means that once the sub is in the water, there was usually about 30-45 minutes before the A-Frame (or the device that is used to hoist the sub off deck and into the water) had to start its warmups again. I’ve included a picture of the A-frame in action.

It’s safe to say that as tiring as the bounce dives were, the robust efficiency of the Alvin Ops team and the Atlantis crew were on point during this trip. I think one of the highlights of talking to the distinguished visitors was learning about all the opportunities that WHOI and the various government departments have for interested students. Another fun highlight is that during the required safety briefing with all the new people on the ship, I was pulled up as the practice dummy for putting on the emergency evacuation suit! So, I have included some silly photos of me being strapped into what I’ve been told is called the Gumby suit and attempting to do a shaka!!

Once we dropped the distinguished visitors off in San Diego, we left port the next morning on a transit cruise to Astoria, Oregon. At the time of writing this, we have been in transit for approximately 3 days and have experienced a couple of days of mildly rough weather to the point where we had to officially “secure for sea”.

Shortly after leaving San Diego, before leaving California waters, we made a quick stop to recover an errant elevator that was unable to be recovered from a science cruise on another ship a couple of years ago. Outside of that, transit hasn’t been busy, so I spent some time talking to the data people to learn more about how operational data from Alvin is processed and plotted for human use. I think I might even get to learn a bit of Linux so I can attempt to make my own so I’m very excited for the coming weeks.

Till then, aloha!! 

 

4th and 5th week with JASON/WHOI

Weeks 4 & 5 with JASON

Holy wow! The last two weeks have been very eventful!

The 4th week we wrapped up the HUBER cruise with 2 more successful dives where we completed water sampling objectives and began our transit back and arrived in port on Wednesday, July 26th. The team got right into demobilization mode and we spent the next 3 days replacing the winch level-wind motor, removing the SUPR sampler from JASON’s aft underbelly, drained the j-boxes and removed all of the science cables/wiring. The most exciting part of this demob for me was that I got to complete a retermination of JASON’s optical fiber on Thursday July 27th. I started at 8am and was overseen by the lead ET (electrical technician). I was able to follow the manual and complete the entire process, including wiring the finished fibers into JASON’s port-aft j-box and testing to ensure minimum signal loss.

On Friday, July 28th, the leaving team members and science crew departed, and it gave those of us staying the chance to relax while also moving our rooms to prepare for a much larger science party to come aboard the following day.

Saturday, July 29th was the official start of the Orcutt Cruise. New JASON and science team members arrived and by 8am, and mobilization began. The port manipulator has to be broken down and repaired since it has started leaking during the last couple dives. The next 3 days our team wired in new science cables, arranged and secured new equipment and mounts on the basket, built and assembled 18 push cores for sediment sampling, filled the vehicle with oil, bled all lines, comps, and thrusters, and made sure the electrical harness was solid. The Thompson departed port on Monday, July 31st and JASON’s predive checks were completed.

5th week:

We launched our first dive on Tuesday, August 1st and continued to recover and launch almost daily until our last recovery on Sunday, August 6th. This last week of dives were successful, but the team faces numerous challenges ranging from port manip leaks, port swing-arm actuator leaks, air motor replacement, temperature probe ground faults, and winch issues. Each one, the JASON team tackled together, and the turn around time for repairs was amazing. This team really loves what they do and are dedicated to vehicle maintenance to ensure science objectives are met. It can be quite daunting when things seem to go wrong, but this crew faces what is in front of them, one thing at a time, and still take the time to teach others about this amazing system.

In the mix of trouble shooting, diving, and water sampling from corks, I was given the opportunity to fly JASON while transiting to new locations. It was so exciting, I felt like I leapt into the main chair! I was able to practice my lateral transiting, landing on fine sediment surfaces without kicking up dust, and centering the vehicle for science cam visuals. It was a blast and I even got to stop and check out a skate, weird sea cucumber-like tailed marine life, and a sort of bubble-like growth at depths of 2600 meters. I still gasp when I see new marine life and absolutely love every minute of being out here. 

The Orcutt cruise dives came to and end Sunday, August 6th when the winch level-wind started making an intense, vibration sound. This lead to cutting the last dive short, but we were able to complete all of the testing and science equipment retrieval before recovering the rov. As we head back to port, we will begin demobilization and continue testing the winch system to identify exactly what this reoccurring issue is.

Tip of the week: Find some balance.

Having a career out at sea has its own set of challenges. Being away from home and loved ones can be a hard thing to adjust to, but also finding some sort of balance for yourself. Some people enjoy watching movies, reading books, or exercising. It is important to find a little “you” time while out here. I try and stick to a schedule, even though it can change considering what is happening at that very moment. Luckily, we have a small gym room, and I really enjoy working out. It is a little time for myself to stay active, work off stress or overthinking, and I always feel better after. Whatever helps ground you, I suggest making time each day for it. Especially if you are staying out for months at a time.

Langseth take 2: Week 2

 

Its day 19 of this cruise on the R/V Langseth, and we have been deploying the seismic gear for the last 18. After the 12-hour process of deploying the 12-kilometer streamer, 4 strings of airguns, and 2 sensors, we were ready to being “shooting” and collecting data. Once all the equipment is deployed, we must maintain a speed of roughly 3-5 knots to maintain good tension and depth on all the equipment being towing.

As the airguns shoot (approximately every 50 meters or 20 seconds) it sends a sound signal that penetrated miles into the seabed before reflecting and being read by the hydrophones along the streamer. The hydrophones are extremely sensitive underwater microphones that convert the sound signal sent by the airguns into seismic profiles. These seismic profiles show the layers of the seafloor by recording how fast sound moves through each layer.

This week we needed to check the streamer and record videos of it firing. I was lucky enough to be chosen to go on the small boat with a few others. We used a GoPro taped to the end of a metal arm that was then lowered into the water next to the streamer. All these photos came from the video.

The yellow buoys are the head floats on each of the 4 gun strings. Each gun string has 9 airguns on it that are towed at a depth of 10 meters. The airguns are the sound source and critical to the data collection.

Approximately every 20 seconds (or 50 meteres) the 36 airguns fire. When they fire, they create a huge sound wave that makes deep-sea floor mapping possible.

Behind the 4 airgun strings is the streamer with the hydrophones on it. The streamer extends for 7.5 miles (or 12 kilometers) behind the ship, and has 47 Digibirds on it. The Digibirds (pictured below on the streamer) use their depth sensor and wings to keep the streamer at a constant depth of 12 meters.

I’m extremely happy that I got to go on the small boat and check out the equipment that we’ve spent so many days prepping, deploying, and watching on screens. Maybe next time I’ll even get to go swimming…

Page 28 of 89

Powered by WordPress & Theme by Anders Norén