Greetings from the damp and green shores of Kodiak, Alaska! We arrived yesterday midday and are tied up pretty close to downtown, which makes exploring a breeze. There are a lot of outdoor shops and the whole area seems like an ideal jumping-off platform for anything from surfing to hunting to backpacking up impressive craggy cliffs.
Overall, the transit up from Seattle was a pretty good one and it really gave me a chance to get a better idea as to where various labs, staging bays, and equipment are located around the ship and what the startup and shut down procedures are for each cruise. Our first day out we got to wake up all the underway systems and echosounders that the STARC technicians are responsible for maintaining.
Getting the science seawater system (SSW) going involves calling down to the engine control room so the engineers can get the positive displacement pumps on line and up to the required speed using a VFD to convert percent load requested to pump speed. There are 4 pumps in the line and they can run multiple pumps in parallel. There is also a centrifugal chamber that the water can be pumped through which can remove chunks of ice that may have been sucked in through the seachest. This is quite handy as we are headed into ice territory, after all!
Once the SSW was up and running, we let the water drain out into the sink at each station until it started smelling less fishy. We then adjusted flow to various instruments via a series of manifolds until our flow meter was in range (2-3LPM). Unfortunately, it was quite a struggle to maintain this flow so we started isolating parts of the system and found a blockage in the form of a mini seafood buffet in the barbed fittings entering the equilibrator tank. Once all the critters were removed, we reassembled the fittings and the flow was good to go.
Another important aspect of being on the Healy is, of course, the USCG crew members and subsequent operations (like the pyro testing below), routines, and rules. The senior officers, including the Captain and XO, are incredibly personable and I was able to sit in on several evening planning meetings with them during the transit. They have also visited the Computer Lab to say hello and ask how things are going, which is definitely above and beyond the interaction I expected.
During the transit, we launched an XBT and I was on the radio as “Aft Con” communicating with the enlisted MST officers who run all deck deployments. I quite enjoyed it and am looking forward to navigating all of the rather dense and complicated 24-hour science operations we have coming up (CTD casts, net tows, benthic grabs, sonobuoy and mooring deployments).
We will be leaving Kodiak tomorrow morning and heading up to Nome to pick up the science party and any additional equipment that has not already been loaded. On the way up, the Healy is providing support to NOAA while they board fishing vessels in the area and is also conducting flight operations training with ARISTA Kodiak. Lastly, we will be crossing in to the Domain of the Polar Bear and there may be some voluntary ceremonial participation involved.
– Emily