Sunday, January 31, 2010
First light for BICEP2
Hello y'all. My apologies for not writing in a week. Let me catch you up. This past week Ross the winter-over from last year came in for a two week stint to catch up this year's winter-overs Dan and Dana on all of the things that they did last winter. Ross is british and very good with computers. Last winter he wrote a very good collection of programs that deal with automatically processing the data from SPT. For those of you who are interested in that kind of thing, I'll describe it briefly. The crontab job calls several bash scripts every couple of hours. The first bash script updates a Mysql database which keeps track of numerous meta-data things including which fields and sources in the sky have been observed at what times, and what of that data has been processed. The other bash scripts collect the appropriate arguments then call python scripts to process the data. These python scripts are really just wrappers over underlying IDL procedures, and they interface with the Mysql database to figure out what needs to be processed and collect arguments. The IDL jobs are then collected and sumbitted to a Sun Grid Engine, which handles queueing jobs, making sure the processors do not get overloaded, and collecting the output. Once data is processed, the output is written and the Mysql database is updated. It is pretty cool and works well, and it all makes sense once you wrap your head around it all. Ross is coming back to Chicago after being at pole to work as a post-doc for Carlstrom and the SPT group.
In terms of work for myself this past week, I have spent a fair amount of time looking at Ross' autoprocessing procedure to understand how it all fits together. One hinderance is that I have not worked with Mysql at all before, and have only written one program in Python 5 years ago. So I am learning those languages as I go. But as my uncle says, once you know a programming language well - which for me is C++ - you can pick up enough to understand programs in other languages pretty quickly.
Besides that, most of my time has been spent writing the new scan and schedule files for the next year's CMB observations. These are the files that tell the telescope where to point and how to move. The files are pretty high-level, meaning that there are already a bunch of functions that take care of the details and I just invoke commands like "acquire($source)" which tells the telescope to track a given source that is defined in a configuration file elsewhere. We will test out my programs at the beginning of this week.
Beyond my immediate work, the most interesting thing that happened this week was the BICEP science lecture last monday. As most of you know, I worked on BICEP2 last year, and they have been deploying the new instrument this season. Things are going well for them, and at the lecture on Monday they presented their first CMB field maps. It is pretty incredible to see how everything comes together to produce maps in the end. I think back to one year ago when I was still struggling to understand the gcp (Generic Control Program) so I could get it to talk to the detector-readout electronics. I remember how incredulous and excited I was the first time I saw data from the detectors actually propagate all the way up through the gcp and show up in plots in the Viewer in March of last year. Then I remember fighting data-frame packing last summer, which is required to match weather and position information from the Antenna side with data from the detector side. To see it all come together is pretty fantastic, even though I haven't worked on the project since September. It was especially cool to see the first BICEP2 CMB field showing temperature anisotropies that had been measured in 20 hours of observation side-by-side with the same patch of sky as measured by WMAP over 5 years - they looked virtually identical. Now this is not a fair comparison because WMAP had been measuring the entire sky in those 5 years where BICEP had spent 20 hours on that small patch, but it was still cool. The talk was dedicated to Andrew Lange (see last post).
Finally, the week in recreation! Did I tell you all that there is a climbing gym here? Well, there is. It is a small bouldering cave, but it is enough to have fun and stay in shape. And there one guy, Orin, who is climbing stronger than I am and puts up problems that I can make progess on but have to work at a lot. That is totally awesome, having people around climbing harder than you, which makes it easier to push yourself. I put up an awesome problem last weekend, and was finally able to send it this Saturday. The crux went from this small crimp to a spok-grip on a sloper to a thin pocket... Hmm, I need to include a beta video on this blog! Also awesome, Orin has time off in NZ at the same time that I do, so we are planning on climbing together for two weeks there. Hopefully some long rock routes and maybe some mountaineering stuff!
I've also been playing a bunch of volleyball and some soccer. We played volley ball for almost 4 hours on Friday evening! Soccer is a killer on the lungs, so less people play. Last Wednesday there were only 4 of us, so we played 2 on 2. Brutal! At this altutude, we played for 10 "quarters" followed by breaks - that was all that we could handle.
Every Wednesday is Pub Trivia. There are usually 4 rounds, and the winners of each round get a 6-pack of beer. It works out well because I don't know hardly any of the questions, but I don't drink our team's beer when we win either! Lots of pop-culture questions about movies and popular music, with some random questions like the round on robots last time. This coming week the SPT team is hosting, and I am putting together a round on mountains. I'll post my questions here, and see how many you guys can guess!
Back to work on this cloudy Monday morning. I hope that all of you have a brilliant day!
Sunday, January 24, 2010
Darkness and Light
Tuesday, January 19, 2010
Random snippets in the life of a Polie.
Sunday, January 17, 2010
What I may or may not have done on Sunday afternoon
Just greasin' the gears
Thursday, January 14, 2010
Ice cream!
Soccer and Pub Trivia
Monday, January 11, 2010
Arrival at the South Pole
Holy crap!!!! I am at the south pole!!! Holy crap!!! How can I convey to you, my dear reader, my excitement when I stepped off the plane and there was the South Pole Telescope, just a kilometer away? Well, hopefully you all know me well enough to how excited I get about the science I do. I have been working on projects at the South Pole for a year and a half, and have seen hundreds of pictures of the SPT, and then all of a sudden, THERE IT IS!!! I couldn't stop smiling and almost started jumping up and down right there on the snow runway.
But I am ahead of myself. This morning, we left McMurdo and boarded the airplane at 8am. The planes that they fly into the South Pole are military propeller planes with skis instead of wheels, C-130's. They hold around 30 people seated around the outside of the plane interior, and when we are dressed up in all of our ECW (Extreme Cold Weather) gear, the quarters are quite tight. The ECW consists of the following: white Mickey Mouse boots, insulated Carhart overalls, massive down coats with huge, fir-lined hoods, gloves, hats, and goggles. In anything above 15 deg F you start sweating in a hurry just standing there! The flight took about 3 hours. There were some breath-taking views of the Antarctic interior. Just incredible vast expanses of snow and rock. The sky blends with the ground in a seamless cocoon of white and blue.
At the South Pole station I was met with many familiar faces - colleagues I have worked with on the BICEP2 experiment (which I worked on for my first year of graduate school) and my current coworkers on SPT. It is a funny feeling to step off of a plane in one of the most remote places in the world, and be immediately surrounded by people you know and buildings and structures you have dreamed of. My friend Justus who works on BICEP 2 and has taken me climbing in CA during my visits to Caltech to work on that project met me when I got off the plane. The first thing he said was, "did you bring your ice axes? Because there is a 20 ft ice face that we could climb if we had gear!" All my climbing stuff is in Christchurch, so I will try to get Chris Sheehy to bring it in when he comes in later in January. The landscape is completely flat snow in all directions. The sun circles around the sky, but always at virtually the same elevation in its slow regress towards the horizon where it will eventually set after this six month day.
After eating lunch, we immediately headed out to the telescope. The first thing I did when I got there was charge the outhouse because I had to go to the bathroom so bad I couldn't think. But then ... WOW! WOOOOOOWWWWWWWW!!!! They weren't kidding when they said that the primary mirror is 10 meters in diameter! The telescope is huge. The first time I was standing on top of the observation building watching the telescope turn and nod, I just started laughing hysterically with glee! The entire telescope can rotate at several degrees per second and can almost look like it is dancing. It is indescribable, just amazing. I still can't believe that I am here.
In addition to scientists, there were several media people and "Distinguished Guests" (DV's). The media people include Dan, a meteorologist for a tv station in Alabama that partners with CBS, Ann, a science writer for the Washington Monthly, a camera man from CBS, a science writer from the Wall-street Journal, a reporter from NPR and another science magazine, and perhaps a few others. The DV's were top people from the NSF, which is the organization that funds the whole Antarctica program along with the military. It is very important that the DV's have a good trip and return with favorable impressions, and they have certainly been treated as first-class citizens during the entire trip. Both groups were given tours of the science experiments including SPT, BICEP, and Ice Cube. I listened to Carlstrom give the tour three times in all. Even though I know most of what he said, it is always incredible to listen to John talk about his science. He has a crystal clear grasp of what the science is and how our experiment is achieves these goals. He explains his work concisely, clearly, and passionately. Without exception everyone on each of the three tours were visibly excited by the time John finished talking about dark energy, structure formation, and finding new galaxy clusters. I got excited, and I was hearing the exact same thing three times in a row! I came away with the realization that the experiment I work on, SPT, is the best instrument of its kind at virtually the best location on earth directed by one of the best scientists in the field right now. I know I have told many of you this, and I will say it again; there is nowhere I would rather be, nothing I would rather be doing right now than working as a graduate student on the SPT under John Carlstrom. If I were independently wealthy, I would be doing exactly what I am doing now - ok I might have a car to go climbing but ... I love it. I absolutely love it!
May you all be living out your dreams.
The Southern-Most Rugby Game in the World
[Written Sunday Jan 10]
The posters were everywhere - Mt Terror v.s. Scott's Base. Wait, rugby in Antarctica? Snow for a playing field? Team uniforms? Actual rugby goal posts? No problem mate - let's play!
But first, more penguins! This morning, there was a "penguin tour" Unfortunately by the time that I went to the board to sign up for it, the sign-up sheet was gone. So I just dressed anyway and went out to the meeting place just in case there was extra room. There was.
We drove back out on the road going to Pygasis airport about 20 min onto the ice shelf, and the 20 of us unloaded. A group of 4 emperor penguins was standing about 100 feet away. They were molting, and had apparently been there for 4 days without moving. What impressive animals - way out in the middle of the snow just standing. It was a stunning day with a blue sky and temperatures around -8 C.
After lunch, I piled into "Ivan the Terrabus" and drove out to the field. Sure enough, there was a full rugby field complete with goal posts and flags for the sidelines! Mt Terror was the US team and Scott's Base was the New Zealand team, and each had actual team uniforms - red, white and blue for the americans and black for the kiwis. The players all actually had cleats! The kiwi team looked just like the NZ national rugby team, the All Blacks, who are infamous in the world rugby circuit - apparently whenever they don't win it is a bit of an upset!
The fans lined up on both sides - many more American fans than kiwis, simply because the McMurdo (US) base is a lot larger than Scott's (NZ) base. there were large flat-bed trucks on each side to serve as bleachers, and a kiwi announcer talking through a speaker system. The national anthems were played, and and the teams lined up. But before the game began, the NZ team performed the Haka. The Haka is apparently a traditional Mauri dance, one form of which is performed to show that you have no fear going into battle. The All Blacks perform it to intimidate the other team before the game begins. And yes, it is terrifying! Go look for it on youtube.
Then the game began. It was a fun game and they all played pretty seriously. There were a few girls on each team, who whenever they got the ball or went for a tackle the crowd went wild. The first quarter went scoreless, then things went down hill for the good-ol' USA. We ended up losing 18 - 0. Ouch. But what a random, crazy experience! Pictures to follow.
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McMurdo is a funny community. There are several hundred people living here, and many come back year after year. I was talking to a couple of women who are on their 12th season. It is a very community based atmosphere - much more than in the states. I guess this is because people need each other and if you seclude yourself you will probably go crazy. The age demographic is dominated by people in their late 20's or early 30's. There are significantly more blue-collar type workers than scientists at McMurdo; I will be curious to see if that changes at the pole. There are a surprisingly large number of recreational options - cross country skiing, easy snowboarding, hiking, a gym, yoga, a big screen (~100 inch) TV, and ... wait for it ... drum roll ... a climbing wall!! Unfortunately you have to get certified to use it or go with a group and talked to the guy who is in charge of it on the phone then emailed him later and he hasn't gotten back to me about times to go :(
The dining hall seems surreal - it feels just like a dining hall on a college campus. Various different food options and the ever-present cereal bar, and ENDLESS SUPPLY OF MILK, an ice cream machine. The food is quite good. My one complaint is not enough vegetables. Then again, I am in Antarctica, and veggies are expensive to ship here.
Antarctic landing
[Written regarding Friday, Jan 9]
Here is a photo taken from the airplane window of mountains in Antarctica on the way to McMurdo.
After three days of delays in NZ, we finally made it to Antarctica on Friday. As I mentioned in the previous post, I was out partying with kiwis and only got 3 hours of sleep, so the plan ride went fast because I was spacing out staring at the back of my eye-lids. As we got close, you could see vast expanses of snowy mountains poking above the all-encompasing ice. Just amazing!
We landed on the Ross Ice-shelf, and stepped out into Antarctica. Cold? No, not really; it was actually only -5 deg C and relatively calm. All of us were then loaded up into these bus things that are jacked way up to accommodate massive snow tires. It is called "Ivan."
McMurdo Station is what I imagine a mining town looking like. There are no plants growing at all and all of the buildings are mostly colorless. McMurdo is on the flank of an active volcano called Mt Erebus (~12448 ft), and the ground is all black or dark-brown volcanic rock. I hiked up Observation Point, a 500 ft hill on the edge of the town, and got a great view of McMurdo and the surrounding bay. The most noticeable thing the vast-ness; open expanses of white in all directions with some mountains.
Our flight to the South Pole was supposed to take off Saturday morning, however it was cancelled because a plane on the Wais Divide had run into mechanical issues and our plane was needed to fly in mechanics to fix that plane. I hiked Observation Point again with three other guys, and spent the afternoon catching up on email, creating this blog, and reading an SPT paper. I ate dinner with John Carlstrom (my adviser), went out to Scott's hut with him, then had a few glasses of wine before going to bed. Tom Crawford, a senior scientist on SPT back in Chicago had told me that the best way to get time to talk to John was to be in Antarctica with him. So true! I spent over 5 hours with him yesterday, and in Chicago I have to fight tooth-and-nail to get 15 minutes!
And the moment you have all been waiting for - PENGUINES! At Scott's hut there was a group of 7 or 8 penguins pretty close out on the ice. They were mostly just laying on their stomachs not moving much, but still very cool. I got a few pictures, but I need a zoom lens to get good photos. There was a seal swimming around there too, but apparently not the kind of seal that eats penguins. I'll post some photos when I can download them to my computer.
Friday, January 8, 2010
we like, we like to party!
A'ight, this should be the last post-dated post for the time being.
Thursday morning I got a call at 5am saying that the flight had been delayed for 3 hours. So I got up at 7 and worked out at the gym, with the plan of grabbing breakfast in time to make the 9am shuttle. But when I got back to my room from the gym, a notice under my door said that the flight had been delayed again until Friday. Grrr!!! I ate breakfast and decided to go find the campus in Chirstchurch, where my friends Jeanine and Joe from Cornell had studied abroad. The University of Canterburry was a 10 minute bus ride from down town where I was staying. It felt like a normal small college campus. I was hoping to get on the internet and do some work, but I went into the library, and the wireless network was password protected. I asked if there was any way to get on the network seeing as I wasn't a student. They said no, as expected. What surprised me was that they charged their own students to use the wireless. Weird.
After lunch I went into the book store and ended up buying a map and guide to NZ, and a picture book of mountains in NZ for $20 (NZ dollars = 0.75 american dollars). After bussing back to down town, I went into an outdoor store and spent an hour drooling over the climbing and mountaineering guidebooks. I found the same picture book I had just bought on campus, except in the outdoor store it cost $89!!! What!?! Also, all of the climbing gear was really expensive - climbing shoes that in the US cost $130 were on sale for $300 NZ.
I got kicked out of the store (they were closing for the evening) and I was bumbling around down town looking for and internet cafe. I dropped into an All Blacks Rugby store, because I was thinking of getting an All Blacks jersey to take home. Well, the official jerseys cost $180, so screw that! But here is where things get interesting. The lady working there asked me a few questions and it came out that I was going to Antarctica. She asked me about my research there and I told her that I was trying to understand the big bang. She said that was "interesting" and I soon found out that she was a Jehova's Witness. They believe something along the lines of the earth being several thousand years old and being created by God, and that Jesus is going to come back to earth some day soon and set up an everlasting government. It always surprises me when people like this tell me that they are thinking rationally or scientifically. They speak of the Bible as "proof" of things because they were written in the scriptures. Something that caught my interest was that in reference to something else she mentioned that education was the solution to many of the world's problems, and I wanted to say that education is probably what turns people away from believing in things like Jehova's Witnesses. But I kept my mouth shut. In any case, she was not prostletizing, so it was bearable and the conversation moved onto other topics. She did by far most of the talking.
As I was getting ready to leave, the other younger guy who was also working at the store joined the conversation when he found out that I was going to Antarctica. He is a native Maori, and his name is something complicated so he told me to just call him Kay. He is in college and is interested in becoming an environmental lawyer. Very outgoing and personable guy. So he ended up inviting me to a party that he was going to have later that evening, and gave me his telephone number. He then pointed me to a very good Thai restaurant for dinner.
The Thai restaurant was indeed very good. As always, whenever I see a new napkin folding pattern I take it apart and try to learn it, I was going this for their pattern, when the mother of this family owned business came out of the kitchen and her and her son taught me how to fold the napkin. :) I had fried shrimp with sweet chillies and cashews, and it was really good.
Then back to the hotel, where I saw that the shuttle would leave for the Antarctica station at 5:45am Friday morning. I called Kay back and said I'd be excited to go to the party as long as I could be back at my hotel by a reasonable hour. The plan was to go to his house and party there for a while then to come back into town an which point I could split for bed. So Kay picked me up at my hotel, and off we went.
It was exactly like I was expecting a Kiwi party to be - my Kiwi friend in Chicago complained that our parties in the US were lame. Lots of drinking, lots of smoking both tabacco and weed, and people listening to loud music that they were really into. The current fad is a music type called Drum and Bass, or D&B. It is a mix of hiphop, techno, and funk. I couldn't tell if the music was completely computer created and mixed, or if there were people actually playing drums and bass. The music is completely about groove, and there is basically no melody. It is good party music.
We drove up to his house where the party had already started and there were probably 15 people there. The reason for the party was Kay's friend's 22 birthday. Kay introduced me to his friends with something along the lines of, "This is my bro Kyle from the United States. He walked into my store this afternoon, and I invited him to the party. He is going to Antarctica tomorrow at 5 in the morning, and he is an astrologer or astronomer or something and he studies the big bang." Whew, that is one way to get a bunch of mildly drunk people excited! They were cool people and I enjoyed hanging out with them. They started a fire, but didn't have a fire ring so they used an old shopping cart. I'm not sure where the wood came from, but just before the fire started I saw them passing a bureau over the fence from the back-door neighbor's yard...?? Fortunately they put down a board under the cart to catch the ashes and protect the rubber of the drive way. That was especially important when the plastic child seat started to burn and trip molten plastic... Then the fire department came and we had to put the fire out, but no one was cited; they were very reasonable. Good times.
I talked to one guy Ethan, who seemed a bit older than his other friends. He was really excited that I was going to Antarctica, and was trying to figure out how he could go eventually himself. He was studying environmental studies with a focus on climate in order to try to get down to the ice. Apparently he started college a few years ago, but as he said, "I spent too much time partying with these guys, and dropped out." He took a year off, worked, and is now back in school and much more motivated. A lot of the guys there new a fair amount about astronomy and such, and one guy had read "A Brief History of Time," the book that originally got me excited about physics way back in high school. We finally headed back into town at 1am. One guy who was so drunk he could hardly walk was trying to drive and the tried to take his keys from him. They couldn't get the keys, so one friend decided to stay and sit on the hood of the car until the guy got out and handed over the keys. We took a taxi into town, and I walked back to my hotel from there, a 5 minute walk. I only slept for 3 hours last night, but that was totally worth it! Then this morning we all shipped back to the Antarctic center at 5:45am. Psyched!
Definition: Boomerang
boo⋅mer⋅ang
[boo-muh-rang]1. Spending 9 hours on an airplane when you land in the same place you started.
Here is a photo of the interior of the plane.
I was supposed to fly out of NZ to McMurdo in Antarctica on Jan 5, but the flight was delayed for 24 hours and I spent the day at the beach. Wednesday Jan 6 started well, with me waking up before my alarm went off at 4:45am. We all shuttled over to the Antarctic Center, put on our clothing and had our briefing. We boarded the plane at 8am. The airplane is a military plane that had a so-called "comfort pallet" put on, which is basically a removable insert of normal airline seats. There were 117 people flying, plus the normal aircraft crew, so pretty much every seat was full.
The flight from NZ to the McMurdo station takes about 4 hours. I am used to being able to look out the window during takeoff, but there are only a few small circular windows in the plane, so I just had to sit tight during takeoff. The flight was uneventful, and 4 hours later they announced that we were circling McMurdo waiting for the weather to improve so we could land. I should have hopped up to look out the window, but I didn't - some other people got some great pictures of the mountains of Antarctica. An hour later we were still circling, and they announced that we couldn't land and were heading back to NZ. So 4 more hours of flight. We landed again a but after 6pm, 9 hours after taking off.
Back in the Antarctic station, we picked up our "Boomerang Bags" and changed to go back into town and to our hotels. We get a carry-on bag and 2 checked bags, one of which stays on the plane in the case of a boomerang and the other which we get back for the night. I have been hanging out with two friendly and interesting people, Dan and Ann. They are here because they put in for a grant through NSF to visit Antarctica. Dan is a weather man for CBS out of Arkansas, and Ann is a writer from Washington DC who works in environmental writing and education. Dan put his shoes in his check bag, and so the only thing he had for footwear was his huge white Mickey Mouse boots that they issue for walking around in the severe cold. Fortunately I had put both shoes and flip-flops in my boomerang bag, so I lent Dan my shoes. The three of us went out to dinner, at which I ate a good chicken and mango-chutney pizza.
Then off to bed in expectation of flying the next day... which would be cancelled :(