Sunday, May 12, 2013

Homeward Bound

King Sejong Station on King George Island.
Crew members loading supplies onto the barge and into zodiacs.
Frozen aftermath of the bad weather, a life-saving buoy on deck.
For the past five days we have been at King Sejong station, the Korean base on King George Island on the Antarctic Peninsula. We came to the station to give the researchers more supplies for the winter (including food and fuel), because  many of them will be spending the winter on the Island. There was no pier at the base in order to offload supplies and our boat was too large to pull directly up next to the base, so we had to transfer the fuel and supplies via small zodiacs and a large barge. The first day we managed to get most of the food supplies offloaded, but then the weather got really bad and we could not offload anymore. When the wind picks up and the waves start to get too big, it is not safe for the zodiacs and the crane. Since we were their last chance to resupply for the winter, we had to stay at the base for five days until there was a window of good weather to finish resupplying. Unfortunately, the weather was also too poor for any of us to go to the base, so we waved enthusiastically at the Korean scientists but did not get to meet any of them. We finished loading on Friday, and yesterday began our long and slow journey back across the Drake Passage to Chile. In a way it was a blessing we had to wait at the station, because the weather across the Drake has been horrendous the past few days and we are managing to slip right in between two very large low pressures systems in order to make our way across. We are expected to get some high seas by later tonight, but that should be just in time for us to start rounding Cape Horn and getting into Chile. We are hoping the weather cooperates for a few more hours! We should be arriving in Chile on Tuesday, after going through the Straits of Magellan in relatively protected waters for most of Monday. Many of the scientists are sad about our late arrival though, because everyone had to reschedule their flights and tell their families they would be home later than expected. This is quite common on these trips though, as the weather and the ship can often be unpredictable. Overall, we are happy we were able to give the station the supplies they needed, and so far we are happy that the weather has been our side for this crossing. Wish us luck for the next 20 hours or so, I woke up to a red sky which can sometimes be ominous based on an old sailor's saying:

"Red sky at night, sailor's delight. Red sky in the morning, sailors take warning.."

We know a storm is coming though, so hopefully we make it past before it hits us. It is looking pretty good though! We are looking forward to being back in port and having a nice dinner in Chile!

Monday, May 6, 2013

March of the Penguins

Gentoo penguin at Spring Point, Antarctica.
Yesterday was one of our last days of doing science on the boat, and it was a great day! All of the students on board got to go with the glaciologists to repair a seismic station on land at a place called Spring Point. A seismic station is an instrument that records seismic events, usually something like an earthquake or anything that shakes that the ground. In Antarctica, this can also be when a large piece of ice collapses, or falls into the ocean. This station at Spring Point can then record when these events happen, so the scientists have an idea of how often large pieces of ice are falling into the ocean and melting. In order to get to the seismic station, we all went by a zodiak and hiked up to the station. We wore lots of warm clothes, and went with an experienced mountaineer who could show us the best way to hike up to the tower. The glaciologists did all of the repairing, so that left a lot of time for sightseeing for the rest of us. A small colony of Gentoo penguins live there, and they were pretty interested in us so we spent most of our time taking pictures and laughing at the penguins. They are very curious, so they get pretty close to you as long as you sit down on the snow and don't look too threatening. We also saw a bunch of seals, and some other birds throughout the day. It started to snow pretty heavily at the end of the day, so we rushed back to the boat and got warm inside before having a great dinner that the crew had prepared for everyone in celebration of most of our work being finished. It was a great way to end all of our hard work!
Gentoo penguins and the R/V Araon in the background.

Korean BBQ night on the R/V Araon.
Today we traveled to the Korean research base in Antarctica, called King Sejong station. It is located on King George Island, in a beautiful bay. Unfortunately, there is huge storm here now so we are sitting just outside the bay waiting out the storm before we can navigate the narrow passage into the bay to deliver supplies to the station. About 15 Korean research scientists will be staying on the base over the Antarctic winter (our summer), so we are delivering them food, fuel and other supplies. The storm made our trip to the base a very eventful one, there were 60 knot winds (hurricane style winds) and large waves coming all the way up to the 4th deck of the ship. The ship rode pretty well most of the time, but early this morning we had to take a heading toward the station at an angle to the waves (instead of straight into them), and that made a lot of the waves come over the side decks, which ended up flooding the room with our CTD instrument. This room is made to get wet, but not to flood, so we were all frantically grabbing the stuff floating around in there so that the CTD would not get damaged from other bottles and equipment slamming into it. At the end of the day everything was ok once we stopped, but there was a big mess to clean up and not many people slept well last night. Tonight should be better because we are still stopped outside the bay, and it seems like the wind is calming down. Wish us luck delivering the supplies!

Friday, May 3, 2013

Flandres Bay

Me and the pilot in the helicopter flying over Flandres Bay.
Today was a great day in Flandres Bay. We woke up to beautiful skies, and relatively warm weather. We saw some penguins, whales and a few seals, and were outside watching the glaciologists take off in the helicopters. There were headed over the mountains to another glacier on the other side of the Peninsula called Crane Glacier, but unfortunately when they went over the mountains there were too many clouds and they had to come back. That was not very good luck for them, but it was nice for the rest of us because all of the other people on board got to go on helicopter joy rides! We went four at a time, and got a tour around the bay and back again to the boat. It was so beautiful, with no wind, and the pilots took us by some icebergs, out over the water and near the mountains. I took some video, and lots and lots of pictures! It was so fun! It is pretty thrilling to be in a helicopter in Antarctica, you can see so many things that no one else has seen.
Helo crew with the biologists.

View from the helo deck.
To top the day off, we had a small pod of about 8 whales circling the boat for a few hours showing off and eating some phytoplankton and krill. Overall it was a great day!

Minke whale in Flandres Bay.
Tomorrow night we will head to the Korean base on the Peninsula to give them some supplies for the winter (it is winter here during our summer in the northern hemisphere) and we will visit for a few days. Then, we will be heading back to Punta Arenas, Chile across the Drake Passage. The cruise has gone by pretty fast!

Tuesday, April 30, 2013

CTD Palooza

Me freezing in Flandres Bay.
For the past two days we have been working almost non-stop, but we have gotten a lot of good data from it! There are several different groups of scientists on board the ship, and I am part of the "biology" group (even though I'm a chemist); there are also geologists (they study rocks and sediments), glaciologists (studying the movement and melting of glaciers), and physical oceanographers (studying the currents and the movement of water masses in the ocean). All of us have different research goals, and depending on the location of the ship and weather conditions, different groups have been working at different times. The past two days was our turn to work a lot, because the weather was too bad for the helicopters to fly (for the glaciologists), and we were not in a good location to collect sediment cores (for the geologists) because there was hardly any sediment on the ocean bottom.

The CTD entering the water in Flandres Bay.
When we are working, we mostly use the CTD rosette in order to collect water. It has 24 bottles on it, and each bottle can be closed at a different depth in the water in order to collect water from that depth. We watch the instrument as it moves down in the water on a computer screen that shows us what all of the sensors are reading (like temperature, salinity, etc...) and from that we can decide where we want to collect samples. Then, we press a button on the computer in order to close the bottle when we are bringing the instrument back up to the ship at certain depths. Each time we put this instrument in the water it takes about 1 hour for it to go down to the bottom and back up again (about 300 meters, or 600 feet down), and then we collect the water and filter it or process it in various ways depending on what we are measuring. The filtering can take anywhere from 1-4 hours, so it is a lot of work! We did 20 CTD casts in two days, so we were all very exhausted afterwards. Most of us slept for only 3 hours during that time, so we took long naps today in order to catch up. We did the sampling in a very beautiful bay called Flandres Bay, so it was worth it. There are several glaciers feeding into this bay and we were interested in seeing if the melting of these glaciers was effecting the circulation (currents in the bay) and the biology (the growth of phytoplank
ton, and the growth of animals that live on the seafloor).

Crabeater seals in Flandres Bay.
Now we are mostly done with the biological work, and the geologists and glaciologists will be trying to finish their work for the rest of the cruise. We are now trying to go to different locations so the glaciologists can fly the helicopters to the land in order to install some instruments, but the weather is bad in a lot of places so it is difficult for them to get their work done. They are all kind of sad about that, so we are thinking sunny thoughts so they can hopefully fly!

Friday, April 26, 2013

A Day in the Life

My lab space on the R/V Araon.
When you go on a family roadtrip most parts of the trip are amazing. Some days you wake up and the drive is beautiful, you are singing along to Disney songs and playing car games, and everyone seems to be getting along. Then there are those days, maybe only a few, when the car breaks down and it is too hot outside and you are hungry all day and your brother just won't stop poking you. Well, being on a ship is kind of like that.

It is difficult to describe life on a ship. Imagine you wake up just like any other day, and plan to get dressed and go have breakfast. Only, you wake up and you have to hold onto to your closet before you get to the bathroom because your whole room is moving. Then, once you finally manage to get dressed in the dark (because your roommate is probably sleeping), you head down to breakfast. There are 30 other people also having breakfast, who you only just met and now they are looking at your un-brushed hair. Their hair looks a little un-brushed though too.
The gym on the Araon.

The day could get interesting from here. You have your coffee, then you might put on as many clothes as you can find and go outside to see what the weather is like today. If you are lucky, it is sunny and calm with no wind, and you can see some penguins sliding on the ice in the distance, as a whale slowly passes by. This is one of those good days on the family roadtrip. You could also have no work to do today because the boat is moving for the next 12 hours to your next station, so you spend the day walking around on the deck and taking pictures, talking to your fellow scientists and eating too many cookies that the cooks left out in the galley the night before.

Mattias doing what oceanographers do best- filter!
If you are un-lucky, you go outside after breakfast and can stay out there for about 5 minutes before you feel like you might loose a toe from frostbite. You also have to change clothes once you come in because a whole pile of snow blew right into your face and down your jacket the moment you set foot on deck. Then, when you come in to change you see that your lab is flooded because the drains on the ship are all frozen because it is too cold. Next, you might have to stand and filter some seawater for the next 12 hours, then go to bed and do it all again. This is one of those bad roadtrip days.

My stateroom on the cruise, much larger than on other ships!
The good news is, in fact the great news is, is that the bad days don't happen very often. In fact, hardly at all. And when you look back on a day in the life of your average oceanographer, you only remember when you saw those penguins, that beautiful sunset, got that great data, and those wonderful friends you made. Not a bad job at all!

Monday, April 22, 2013

Ice, Ice, Baby

Today we spent another day on the eastern side of the Peninsula, and it is much, much colder now than earlier in the cruise. Today it was about -10 degrees Celsius, or about 14 degrees Fahrenheit. Everything keeps freezing outside, including all of our equipment. It makes things interesting! We were chased out of one area because of some bad weather, but we got to take another ice core before we left and saw a cute seal sunning himself on the ice. The helicopters were flying that day and luckily made it back in time before the really bad weather hit, but it was close! The  landings were a bit tricky, but the pilots we have are very good at what they do.
Sea ice starting to form once the temperature dropped.

Since it is so cold now, we have been able to see sea ice form really quickly on the surface of the water. It is amazing how fast it can freeze once it gets cold and the wind starts blowing. First, a really thin layer of ice forms on the surface, and you can see it really well, because the water looks very calm and slick in that area. Then pancake ice forms, which really looks like pancakes, and then it just keeps getting thicker and thicker throughout the night. In a matter of 30 minutes a few inches of ice can form, and coat the entire surface of the ocean for as far as the eye can see. Pretty amazing!

Pancake ice forming on the surface of the water.
Yesterday, we picked up a piece of scientific equipment, called a mooring, near the coast. This instrument is kind of like a fancy buoy, but it stays slightly under the water at a certain depth and can stay in one spot for many years at a time. This particular mooring has been in its spot for almost exactly a year; the scientists on board dropped it off last year around this time. This instrument has been taking measurements such as salinity and temperature for that whole year, and it also had sediment traps attached to it in order to catch any of the particles falling through the water column towards the sediments. The traps are really interesting, because you can get an idea about the kind of phytoplankton, and other invertebrates such as krill that might be living in this area. We saw some cool little critters in those traps!

Sediment trap from the mooring with cool critters!
Today was a busy day of science and getting water samples, but tomorrow the weather should be good and the helicopters can fly to the glaciers again. Usually when the helicopters are gone we can not do much else on the ship, because they want to make sure all of the crew members are ready in case anything happens with the helicopter flights. Safety for these flights is the first priority of the ship during that time. It is ok for us though, because it leaves more time for sight-seeing and penguin spotting :)

Saturday, April 20, 2013

The Eastern Peninsula

Mattias Cape and Maria Vernet collect an ice core.
Yesterday we had a great day, after arriving on the eastern side of the Antarctic Peninsula. We are searching for a safe way to get close to the coast through all of the sea ice, which has proven to be tricky. The Araon can break 1m of ice going at a speed of 3 knots, which is pretty slowly. We started having to break ice around 5am yesterday, and it sounds like there is an avalanche outside when we are doing it. Needless to say, we did not sleep much during that process. We also have to back up and change direction often, in order to find the best path through the ice. In the end we were surrounded by ice bergs without a clear path to the coast, so tomorrow we will have the helicopters fly around and try to determine a good way for us to travel.

The top 1m of an ice core, with the layers shown from shallow to deep.
Otherwise, the weather was so beautiful and we are close to James Ross Island and Snow Hill Island, which are beautiful and full of massive tabular icebergs that look like mesas. There is also tons of wildlife around these islands, so we saw tons of penguins! There were small emperor penguins, and adele penguins near the ice edge, and lots of birds and some seals. Since we have to wait around until we find a clear path, we decided to do an ice core station on the ice edge. The ship pulled up next to the ice and we were allowed to get off the ship to drill some ice cores. It was so fun! We took so many pictures, and did lots of hard work drilling the ice cores.

Young emperor penguins on the eastern side of the peninsula.
The sea ice on the eastern side of the peninsula accumulates over many years, and leaves a thick layer of ice, in this case it was almost 3 m thick (9 feet!). We have a large coring device that we have to do by hand in order to core this entire length of sea ice, and because it was so long we had to do it in 3 separate cores. Then, we remove the cores and and place the layers into separate bags and label them according to the depth of the core where the layer came from. The ice forms in layers like sediments, so we measure the temperature in each of the layers and then take chlorophyll, pigment, and isotope measurements in each layer. This gives us information about the conditions under which each  layer of ice formed: what the atmospheric temperature was, if there were sea ice algae present, etc...The ice is interesting in that it will (approximately) maintain the temperature of the atmosphere in which it formed, so each layer can have a different temperature. Pretty cool!

All were happy at the end of the day after seeing the penguins, and we celebrated by having a nice dinner in the galley and staying up late chatting and sharing pictures. A great time!!!