Thursday, November 16, 2006

Care Package

I didn't get the picture of me squeezing porewater from Thom, nor did I get a blog entry posted. I did, however, get a care package in the mail from the Rosses. It had all sorts of goodies like chocolate, fruit snacks, beef jerky, tea, and some long underwear and a knit cap. I ate the beef jerky right away. It's something I really like but very rarely actually eat; the last time I had it was probably at their house. I wear the knit cap quite a bit. I also have a wool ANDRILL hat and a fleece Yazoo cap but the knit one I can wear all the time. I think it's pretty stylish and it keeps my head warm.

We had some DVs from NSF and the National Science Board touring yesterday. It was especially interesting because one of the DVs is going to be the new Provost for ISU. We had a nice chat about ISU and what I'm doing down here. She said that she'll be very busy when she starts in January, but that I should stop by when I get back and make sure I tell her assistant that I'm Josh from Antarctica. I guess you never know who you'll run into...or where you'll run into them for that matter.

Things are pretty much the same here on the work front. PSICAT still has some quirks but overall has been working exceptionally well. So most of my time is spent administering the Corelyzer software--getting images and data ready to go into it.

Since being on the night shift means we miss out on a lot of activities that are arranged around a day shift schedule. So, being the proactive bunch that we are, we got together and arranged a trip to Cape Evans and Cape Royds to see the huts that Scott and Shackleton used when they were down here exploring. Gavin volunteered to get sea-ice trained so he could drive the Pisten Bully out to the huts and Thom and Larry volunteered to get hut guide trained so they can give us the tour. It looks like we're going Monday night, so we'll even get a day off of work. And I'm pretty excited since we should be able to see some seals and penguins.

Next entry I'll hopefully get that picture from Thom and if nothing super exciting happens, I'll be discussing Daywalkers and Nightwalkers.

Tuesday, November 14, 2006

Logging as fast as it comes in

Things have been cooking around here. We've had pretty constant core flow at about 15m/day. This is still under our estimated peak flow of 30m/day, but flow should pick up here pretty soon. And when it does, we can build a buffer of core so I'm not constantly working on the next section the sedimentoligists need.

We've been in some pretty monotonous sediments, so the sedimentologists have had a pretty easy time of describing the core. Tonight we're finally into something different to spice up the core presentation tomorrow. But the word is, tomorrow we're back to the monotonous stuff.

As for me, work has been pretty busy with the increased core flow. About every 20 minutes I have to stop what I'm doing and prepare the next core image for the Corelyzer system. There's also been some procedural issues that I've been working through to minimize the amount of manual work. Tonight I worked up a notification script that checks to see if there are any new images waiting so then I can process them. And I've streamlined the processing down to as little as possible--I simply have to crop the images to the right size depending on the core and run a script to make them available to the sedimentologists via the Corelyzer system. So for the most part, I've got things under control. The constant interruption to process images is pretty annoying, because it makes it hard to concentrate on getting any work done. Though when we get a buffer built up, it should go away.

We've also had a lot of DVs (distinguished visitors) coming through recently. It makes for long days when they are here because I usually stick around through the core tour to make sure all of the software is working and give little demos of the software. I haven't been leaving until 1PM or later most days, which gives 6 or 7 hours to do things like laundry, run errands, and sleep. I'm definitely looking forward to just sitting back and relaxing once I get back to the States. :)

I got a good action shot of me squeezing pore water from rocks last night. It's on Thom's camera so I'll get that from him and get it posted hopefully tomorrow. In lieu of that, here's a cool picture of a big rock we drilled through:

Saturday, November 11, 2006

Putting on my sedimentologist's hat



They let me out from behind the keyboard tonight to help out with the logging. They were in some pretty easy stuff so they let me have a whack at logging a meter. It wasn't that hard, so I don't understand why it takes them so long. I don't know how I did, but from the smiles on their faces I can only assume that I must have done a good job.

Friday, November 10, 2006

All is well

All is well here. We have had a good couple days of coring so I've been pretty busy the last couple of nights. I went out to the drill site on Wednesday and got to look around a bit. I didn't get the full tour, but I'm looking forward to it anxiously.

As I mentioned above, the coring has been great. We aren't up to full production mode, but we're pushing through 5m+ a night. And they just switched out the drill bit to something a little faster, so the volume should pick up. PSICAT has been keeping up. I pushed out version 1.0.10, the biggest release with updates and new features since being down here. None of the bugs so far have been very major or show-stoppers. I'm gratified to see that PSICAT isn't slowing down the logging at all, and I think it's even making things easier on the loggers. But my opinion might be biased. :)

I still have a few things to get done before the morning meetings, so I have to get going. And after the meeting, I've got a beer or two with my name on it since it's officially Saturday night for me :)

Monday, November 06, 2006

Taylor Valley

Wow. The whole field trip experience was awesome.

The helicopter flight was pretty cool. It was my first time in a helicopter. There were 8 of us on the trip so we were packed into the helo pretty tight. The view was amazing, especially coming back when the pilot did a circle around McMurdo and Ob Hill so Alexander could do some video filming. The helicopter dropped our survival bags and extra gear down at the mouth of the valley and then took us and our daypacks up to the top of the valley. The plan was that we would hike down the valley to the survival bags and get picked up at 5.

The Dry Valleys weren't as dry as today as normal because they got a pretty decent dusting of snow that hadn't melted off yet. Nonetheless, Taylor Valley was pretty breathtaking. One of the first thing you notice after the helicopter takes off is that the valley is really quiet. The only things making noise are you and the people around you. And the occasional sound of a glacier calving. Another thing you notice is that you're surrounded by glaciers. They seem to hang from the walls of the valley, and each has a name. Ellen was telling me that these glaciers are unique because they have very flat face as opposed to a sloped face. This is because these glaciers stay frozen year round and have very little melt water, which contributes to a sloped face. The final thing you notice, which is a little subtle at first, is that there is a complete lack of vegetation.


The landscape was littered with all sorts of debris--from boulders of granite the size of a pickup truck all the way down to pebbles and ice chunks of all sizes from the glaciers. The ground ranges from pretty solid stuff to very soft sand. There were also places where there were very many loose pebbles and cobbles that made walking somewhat treacherous. When we first got out of the helicopter, we wandered around for a while pretty leisurely. After a bit, we realized that we needed to head towards the bottom of the valley if we were going to make our pickup time. Ross set a pace that made for quite the workout. The temperature was also pretty warm--20F--so between that and the hiking, everyone got warm and sweaty pretty quickly. It was a long hike to get to the bottom of the valley where we were going to eat lunch. My hips and knees were sore from hiking across a steep slope of loose sand and stones. Sitting down for lunch was one of the greatest feelings I've ever felt :) We ate lunch overlooking the mouth of the valley with Taylor Glacier and Lake Bonney at our feet.


After lunch we wandered down to the lake and decided to hike across it to the survival bags and then explore the glacier further. The ice in the middle of the lake is permanent but the ice around the edge melts aways and forms a moat during the summer. Fortunately for us, it was still frozen solid. The ice was really clear but also very slippery. Ross said that the lake is really salty, but it didn't taste very salty when I got down on my hands and knees and gave it a lick. I guess the salt water sinks to the bottom :)

Taylor glacier was the best part of the whole trip for me. We got to climb on it and the moraines in front of it. It also has this unique feature called the "Blood Falls". It looks like there is a frozen waterfall of orangeish 'blood'. I guess it is caused by some lake minerals and salts that are underneath the glacier and getting forced up through it.


The helicopter picked us up around 5 and took us back to McMurdo. On the way back, I got a couple of nice pictures out the window. When we got back, I was dog tired. But considering we'd hiked quite a ways over some tough terrain, and it was during the time I'd normally be sleeping, and I was running on two hours of sleep, I guess it wasn't too surprising that I was tired. When I get a chance, I'll upload a few more photos from the trip. I need to sort through them and pick out the best 15 or 20 since I took about 130 pictures.


EDIT: I uploaded the pictures to the Taylor Valley album.

Sunday, November 05, 2006

Field Trip

I'm ducking out of work a bit early tonight to get some sleep because we're off on a helicopter tomorrow to Taylor Valley to do some sight seeing. Ross Powell, one of the co-chiefs, is leading the trip. We'll be out there checking out some glaciers and glacial sediments. And if things go as planned, we'll be back in time to catch a little nap before we start logging core. The sea riser cementing went well and they were going to be finishing up the drilling of the cement tonight. So hopefully we'll have a couple meters to log tomorrow night.

PSICAT is still working out quite well. I just pushed out an updated version with some new features. I've got a few more, collaboration-oriented features to get pushed out before the end of this week when the big boss--Tom Wagner from NSF--shows up.

Friday, November 03, 2006

A day in the life...

Things are looking up around here. They should have started cementing the sea riser in while I was asleep today. This means that if everything goes to plan, we should start getting a more steady stream of core to log. It'll be slower at first since we're going through soft stuff but once we hit the lithified stuff, we're looking a 30-40 meters a day.

On Monday, I'm scheduled to go on a helicopter ride to the Dry Valleys for a field trip. As the name implies, the Dry Valleys get virtually no snow or moisture of any kind. I guess they are quite amazing so I'm glad that I was able to get to go and visit them. So expect some pictures early next week.

Things around work are pretty much the same as before--no core so there's a limited amount of things to do. Fortunately I have some coding on PSICAT that can be done as well as some work on a paper for class. I've settled into a pretty steady routine that should keep up until we're done coring in late December. Below is a snapshot of my day:

7:30PM: Wake up when my room mate, John, gets home
7:45PM: Go to the gym and workout for an hour or so
9:00PM: Shower and head into work
9-10PM: Fix any problems with the blogs and check my mail
10:00PM: My shift starts. If there is core, I start processing the images so they can be displayed on the Corelyzer system. Get the sedimentologists set up for logging with PSICAT.
12-1AM: Midrats
1-6AM: Work on various things, answer any questions that the sedimentologists have about PSICAT.
6-7AM: Breakfast
7-8:30AM: Wrap things up from the night. Fix any problems with the blogs.
8:30-9:30AM: Co-Chiefs meeting.
9:30-11AM: Science team meeting.
11AM-12 or 1PM: Fix any day shift issues and then head home to bed.

All in all, I like the schedule. Here's what I like about it:
  • The people on night shift are great. We always have a good time.
  • It's quieter, so you can get more work done.
  • The meals are less crowded.
There are a few downsides, though:
  • Not as much variety in meals. Midrats is usually pretty hit or miss. Some nights it is awesome; some nights it is pretty eh. Fortunately you can always make a bowl of cereal or a sandwich. And my other meal is at dinner time for me but at breakfast time for everyone else, so I usually have eggs.
  • Fewer social opportunities. We missed the station's Halloween party because we were working and I think we miss out on a fair amount of social interaction with the day shift.
As you can probably tell, there is a lot of emphasis put on the meals. The food is neither exceptionally good nor exceptionally bad. When you're cooking for a couple hundred people, it's hard to make sure all of the food is cooked perfectly and accommodate a variety of tastes. The meals are the major gathering times for people so they factor highly into Antarctic life.

In the end, it's an awesome experience and definitely worth it. I'm missing home a bit, but I know I'll be home soon enough so I might as well experience as much as I can. And when the core starts pouring in, we won't have time to miss home because we'll be too busy.