Showing posts with label student questions. Show all posts
Showing posts with label student questions. Show all posts

Thursday, November 15, 2007

Ms. Theilen - First Grade, Talahi

These are answers to questions asked by students in Ms. Theilen's class at Talahi Community School in St. Cloud, Minnesota

Where do you sleep at night?

We sleep in dorms. They are large 2-storey buildings. We are lucky because we are in 2-person rooms (some people have 4 or 5 to a room I gather). There is a bathroom (toilets and showers are down the hallway), and a laundry room with washers and dryers down the hall. These pictures show the outside of the dorm and the inside of my dorm room, which I share with Louise Huffman. When we did ‘Happy Camper’ School I slept (not much!) in a Scott Tent (see my Happy Camper blog). The people that are working at the drillsite sleep at the drill camp, which is just next to the drillsite. They have ‘rooms’ built into containers, they have little ‘portholes’ for windows – take a very close look at the picture.


Why is Antarctica a desert?
See the blog I posted yesterday – and email me more questions if you have any; also check out this web page on Antarctic Desert and Tundra.

Is all of Antarctica a desert?
There are a few places on the Antarctic Peninsula that get more rain than places at the center of the continent (go to and check out average rainfall and temperature for the coastal locations, especially Palmer Station); they are a bit warmer, and are closer to the ocean, and is impacted by storms that carry more moisture. There are a variety of research projects that examine the ecology of specific areas. There is some really exciting current research on algae and other microscopic life forms that are living in the extreme environments in Antarctica; researchers have recognized areas they have termed the Marielandia Antarctic Desert and Maudlandia Antarctic Desert; thses areas are identified as Antarctic Specially Protected Areas, because of their unique fauna.

Is there more snow or ice (in Antarctica)?
This is an interesting question. What happens is that the snow at the surface gradually turns to ice, so that there is often a thin veneer of snow at the surface (unless it has been blown away by wind which is quite common), that covers the ice below.

How do you decide where to drill?
This is a complicated question to answer. Basically we use information we have from two areas. First we use information from the few other places in the Ross sea area that have been drilled – these tell us what sediment layers there are there. We also use information from what we call seismic surveys. These surveys send out waves of energy, the energy waves bounce off some of the sediment layers beneath McMurdo Sound, and help us know how thick the layers are, and where they get thicker of thinner. Because we want to drill through a particular set of layers, we use both of these pieces of information to select the drill site. Two of our ARISE team are out on a seismic survey at the moment. Check out Julia’s blogs - she just got back from the seismic survey.

Does it snow a lot?
No it does not snow much. As you have learned, the definition of a desert is that it receives ~250 mm (about 10 inches) of rain (or rain equivalent) a year. We get closer to a maximum of 125 mm (5 inches) a year here at McMurdo. The tricky thing is that the winds (which can be REALLY strong) usually blow snow around, so even if it isn’t actually snowing, it feels as though it is, and it becomes ‘white-out’ conditions because of the blowing snow. The snow rarely melts – although I did notice a few patches of melting snow around the dark volcanic rocks as I went on a walk today. We can see storms arriving when we see clouds of blowing snow moving towards us from the southwest.

What kind of food do you eat?
We eat in a large central building called “The Galley” or “Building 155”. It is just like a school cafeteria (except the food is much better – the baker here is awesome). Everyone just puts their coats in the ‘coat bays’, and goes in to the cafeteria (washing their hands on the way - see Joanna’s blog).




We collect trays, plates and glasses, just like in any cafeteria, then we sit down at a table to eat. Here you see me sitting down to eat with Phill and Bob. Robin took these pictures. At breakfast there is cereal, some cooked breakfast, and an option of having an omlette of some kind. There is also canned fruit, yogurt, juices, and hot drinks.

At lunch there is a variety of hot meal options, plus bread and soup, and there is a sandwich bar. There are also yummy desserts (not to be confused with deserts). Dinner is the same.

There is also a meal called ‘Mid-Rats’ - it is a ‘lunch’ for nightshift people. On Sundays we have a brunch – it is my favorite meal, because they usually (as long as a plane has come in) have fresh fruit and cheese, with foccacia. They also have other hot items, and waffles at brunch.

What kinds of things have you found in the drilling?
We have found all sorts of sedimentary rocks. Some of them are sediments called diamictites – these were deposited by glaciers. Other sediments we have found are just like beach sands. We have also found fine sediments that have diatoms (microfossils) in them – these are called Diatomites.

Antarctica is a Desert

This is a question I got from Children in Room 133 at Talahi Community School:

“We are studying deserts this week. We heard that Antarctica might be considered a desert! Can you tell us about this?”


Antarctica is indeed a desert, in fact it is the largest desert (about 14.2 million square kilometers in size) on planet Earth. Specifically it is a cold desert. This may surprise many people, because people usually think of deserts as being hot, like the Sahara Desert (just over 9 million square kilometers), but that does not have to be the case. Deserts are defined as regions that have less than 254 mm (10 inches) of precipitation per year. Precipitation means water that can fall as rain, sleet, hail or snow.

Another definition of a desert is ‘an area where there is a greater rate of evaporation than precipitation (rain, hail or snow)’. Because the average temperature in Antarctica is typically below zero degrees Celsius (32 degrees Fahrenheit), combined with the fact that cold air cannot hold as much moisture as warm air, it is usually too cold for precipitation to occur.

In the interior of the Antarctic Continent the average annual precipitation (snowfall is recalculated at its “water equivalent”) is only about 50 mm (about 2 inches). The amount of precipitation does increase towards the coasts, but it is still only about 200 mm (8 in). Air over Antarctica is generally too cold to hold water vapor – so there is very little evaporation. This means that when snow does fall in Antarctica, it usually stays there – or gets blown around, and it eventually accumulates over hundreds and thousands of years into thick ice sheets, like the West Antarctic Ice Sheet and the East Antarctic Ice sheet.

I have noticed the really strong winds that typically come from the south. What I have noticed is that the winds are usually blowing snow, which makes it look as though it may be snowing, but it isn’t. The ever-present winds pick up snow that has already fallen and move it around from place to place, producing ‘white-out’ conditions, which would constitute a ‘Condition 1’ in McMurdo-speak. What I have noticed is that I can tell when the snow around McMurdo has just been blown around, because it usually has a slightly brown color; this is because it has picked up lots of tiny grains of silt or mud (‘rock dust’) from the rocks that are sticking up above the ice and snow, and carried it with the blowing snow, then dropped them with the snow when the winds died down.

In fact, I was helping take some core boxes down to the helo pad one day, and we were also taking some big yellow buckets down there. Apparently the people out at the drillsite had noticed all the windblown dust with the snow, and they wanted to collect some, because they were curious about how much there was, and what the composition of the particles was. I’ll have to ask them how they set the giant buckets up to collect the wind-blown dust, and find out whether they have managed to collected dusty particles.

By the way, I went for a very nice short walk this evening part way around Observation Hill. It was one of the calmest (wind-free!) evenings we have had since I have been here.

Thursday, November 1, 2007

More Answers to More Great Questions!

Thank you to the Students at Wines Elementary School in Ann Arbor, Michigan for these great questions.

WEATHER


Is the weather hard to get used to?
The cold weather is a bit of a shock to the system, but you get used to it very fast. By that, I mean you get used to wearing the parka, wind pants, hat, gloves and neck and face protection. But it all becomes habit after awhile. It doesn't feel that cold to me anymore. It has warmed up some, and that is part of it. But I am also more accustomed to the cold. However, when the wind blows, it ALWAYS feels cold!

What is the coldest temperature since you have gotten there?
The coldest straight tempterature was around -25. The coldest windchill was about -40.

Has anyone had frost bite?
I don't know anyone who has gotten frostbite. We have a lot of excellent training to protect ourselves very well.

DRILL

Why do you have different shifts to drill?
We have a very limited time on the sea ice before it starts to break up. So we need to work all day long and all night long to make the best use of our time here. There are two 12 hour shifts, both on the drill site and here in the laboratory.

Have you found any gems?
No, the rocks here do not have many gems. There are some very interesting minerals though!

Are there volcanic rocks?
Yes - in fact, that is practically the ONLY rock type you can find in McMurdo. McMurdo station is built on a volcanic island, called Ross Island. I am even helping make a geologic map of McMurdo Station. Most of the rocks are volcanic - but there is great variety even in the volcanic rocks.

How big are the sediments that you find?
The sediments in the core range from the size of mud, to big rocks two or more feet across. So far we have drilled down to approximately 350 m. below sea level.

Is there a certain spot where you need to dig? That is, why was the drill put in a certain place?
Two years ago, geologists did a seismic survey of this area to look at what the rocks looked like below the ice. This uses sound waves, created by a big "BOOM" of compressed air, travel down through the layers of rock, and get reflected back up to the surface where special microphones pick up and record their sound. These seismic reflections show the different rock layers, and how thick they are, and where there are basins beneath the seafloor. By looking at the results of the seismic survey, the ANDRILL team chose the site that would give them the sediments of the age they were most interested in learning about.

How big is the drill? Can someone fall down the hole the drill makes?
The drill rig is 20 meters high (more than 60 feet!), and weighs about 90 tons. The drillers are extremely safe on the drill site. The drill is built in such a way that there is not a danger of falling in. The thickest core is only about 4 inches in diameter, so there is no risk of falling down the hole. There is more great information about the drill rig at: http://www.andrill.org/technology/rig

Has anyone gotten hurt drilling?
No. And If they did get hurt, there is a medical officer out on the drill site. If someone needed medical attention, a helicopter would fly out and get them and take them to the hospital in McMurdo.


ANIMALS:

What kinds of animals have you seen?
So far I have seen 1 Weddell Seal and 1 Adelie Penguin. That's it, so far! I hope to see more animals when I head out into the field.

Have the penguins mated yet?
Some have, and some haven't. The Emperor Penguin's reproductive cycle starts in March or April. The Adelie Penguin's cycle is going on right now. Those are the two types of penguins that are most commonly present in this part of Antarctica.

Have you seen any unknown animals?
I have seen small microfossils in the core that I do not recognize. But the micropaleontologists on the ice know exactly what they are, and they can identify the age of the core by looking at the microfossils. I have not seen any unknown animals on land, partly because I have not seen many animals!



MISCELLANEOUS:

If you had a choice, would you have named the drilling program ANDRILL?
Yes - I think that's a good name! I like that it is short and it clearly identifies the project. Do you have a different idea?

How many people are there?
In McMurdo, there are around 1,200 people here. For ANDRILL, there are around 80 people on ice.

Do you like it?
I LOVE my experience here! I am learning so very much about Antarctica, ANDRILL, and other projects. And I am also having a lot of fun!

Since global warming is going on, why are you using snowmobiles and not huskies?
That's a great question and I'm glad you are thinking about things like that. I would prefer if we used huskies, and it would certainly be better for the environment. The problem with huskies is that they require a lot of care, and also they can interfere with the natural animal population here. They could harm penguins or seals if they got loose, and we need to protect the native species of Antarctica, and not inroduce any diseases or threats to them. We are only visitors here on this continent.

Sunday, October 28, 2007

Very Happy Campers

We could not have had better weather for Happy Camper School!
It was a balmy +9 Fahrenheit . Our group included people from the Firehouse, the Hospital, the Heavy Machine shop. the Electricians shop, and other science groups, so we got to meet people outside the Andrill group which was good. After a brief intro to the dangers associated with being outdoors in Antarctica we rode out to the 'Happy Camper' Base on the McMurdo Ice Shelf in a 'Delta' - it was initially designed for transporting people across the Canadian tundra we were told. We learned about stoves and the camping equipment, then we collected our equipment, and went out to set up camp.
We pitched two Scott tents, 4 mountain tents, and built a Quinzee. Some people (including Rainier, from the Andrill ARISE group) built trenches. We also flagged the route to the outhouse, built a protective wall, and set up the camp kitchen. Check out the other ARISE blogs to hear more about Happy Camper School.
Some people went cross-country skiing. I took pictures of the banners that I have from Talahi Community School in St. Cloud Minnesota, Friends School of Minnesota in St. Paul, and my Department (Earth & Atmospheric Sciences Dept., St. Cloud State University, Minnesota), with Mt. Erebus in the background.

We got buzzed by the helicopters that were flying past several times - that added some excitement. Then along with other 'campers' I carved the letters 'Andrill' from the quarry used for making the blocks for the snow wall. The 'R' took several attempts.

It was some time after 11pm when I finally turned in for the night after a cup of cocoa. After a warm night (there were four of us in a Scott Tent), it was still relatively warm in the morning, with a slight breeze.
There was low cloud, and it was quite dramatic-looking with the snow and ice on Hut Point Peninsula behind us.
We spent Saturday morning learning how to use the radios - our group radioed South Pole station to get the weather there! In the afternoon we went through a couple of scenarios. The first was searching for a lost person in a 'Condition 1' (i.e. a serious blizzard); our group of 10 spent a long time making our search plan, and we ran out of time, so we failed to find our lost person. We just had a rope, and we simulated blizzard conditions by putting buckets on our heads.

The second scenario was that we were in a vehicle that had burned, and we had managed to all escape with one survival bag, and there was 'Condition 1' weather approaching: we had to pictch a tent, build a snow wall, radio McMurdo, and boil a quart of water in 10 minutes. We radioed McMurdo, and boiled the water, and we almost got the tent pitched - we did not build the snoww wall - the snow was really difficult to quarry out, and the tools not nearly as nice to work with as the ones we had used the day before. I certainly feel much better prepared in case I should face a survival situation here - or anywhere.

ANSWERS TO FREQUENTLY-ASKED QUESTIONS:
Did you get cold when you slept?
No. This was for several reasons. Firstly, I changed into dry socks and long johns when I got in to the tent. They were damp from all the exercise I had gotten, and if I had stayed in them, I would have gotten cold. Also, there were four of us scrunched in a Scott tent, and that made it really toasty. If anything I was overheated - almost sweating, which was a bad thing, because sweating is bad because it produces moisture, which can freeze and cool one down too much. Being cold (especially my toes because I had had a previous frostbite injury on them) was what I had worried most about before Happy Camper, but this proved to be least problematic - helped in part by our beautiful 'balmy' weather, and the precautions I took to make sure I was appropriately warm.

Did I sleep?
Not much. It was horribly claustrophic in the sleeping bag, and very hard to move around. I must have dozed off at some point, because when I woke up I was horribly panicked about being 'locked' in my sleeping bag - I managed to undo the zip and all the drawstrings and calm myself down, and organize things so I could stay warm around my face and upper body without pulling all the drawstrings tight, after that I felt much better

Did I have to get up and go to the bathroom in the middle of the night?
No. but I could hear people who did - the snow squeaks as one walks, so I could hear people walking to the outhouse, and I could also hear people walking around because they were cold, and I could hear all the snorers, as well as people getting in and out of tents to go to the the outhouse. Some people used pee bottles in the middle of the night, so they didn't have to go out.

Were my boots frozen in the morning?
They were very cold. I put handwarmers in to them and by the time I had sorted out my clothing in the morning, they were okay for wearing.

Friday, October 26, 2007

Students' Questions about Antarctica

Fourth Graders from Logan Elementary School in Ann Arbor, Michigan sent me some excellent questions. Here is my attempt to answer some of them...

Is being in Antarctica harder then when you went before?

So far, it is not harder than when I came to the ice 22 years ago, to do my Master’s Thesis field work. But I have not been through the real test yet. I am still in McMurdo, not in the field! And perhaps the fact that I hurt my back is telling me that my back is a little weaker than it was last time I was here…



What is your favorite part about being in Antarctica so far?

There are so very many favorite parts, it is really hard to decide. The part that comes to mind first is the airplane flight into Antarctica on the LC-130. As you watch the ice-covered continent come into view below you, and realize that you are flying over that distant, remote, ice-covered continent of Antarctica, you are awed by the beauty and variety of this planet we live on. That awe makes my insides do somersaults! It’s a feeling that changes your view on the world and your place in it. It is just an amazing feeling!

Did you go to any other headquarters?

I went last week to the New Zealand base, just a couple of miles from here. It is called Scott Base and it is very small, only around 50 people there (compared with more than 1,000 people here!) There is a lot of cooperation between our two bases, and they invite Americans to visit their base on Thursdays. Here is the view out over the ice from Scott Base.

Have you seen any weird fish?

Yes, I saw some Antarctic Cod, which have been collected to study a natural chemical in their body called antifreeze. This is something that protects them from freezing – and is a chemical that people who live in cold climates need to use to put in their cars to prevent them from freezing! Well, the Antarctic Cod produce it naturally! Since the sea around here is all frozen, I did not see them in the ocean. I saw them in somebody’s laboratory (Dr. Arthur DeVries) who has been studying these fish for many years. They catch the fish by going ice fishing.

Have you dug for rocks yet, and if you have how many cool ones did you find?

On Ross Island, where McMurdo Station is located, there are volcanic rocks all around me because the island was formed by a volcano. In fact, there is still an active volcano on this island: Mount Erebus! The volcanic rocks are very interesting, and have lots of holes in them where gases were trapped at the time when they were blown out of the volcano.

Other than that, the only rocks I am seeing are those that come up in the ANDRILL core. There are all different rocks in the core, all representing different environments. Many rocks were deposited by glaciers – and they have chunks of many different rock types in them, and are quite beautiful. When you go on the gravel pit field trip this year in fourth grade, you will see glacial deposits in Michigan. Those are piles of rock that were picked up by glaciers and they moved down from Canada. When the glaciers melted away, they left these rocks behind. They are all shapes and sizes, with many different types of pebbles inside. That is exactly what we are seeing in the ANDRILL core! We are seeing other types of rock in the core as well, representing different environments as well – such as warmer times when the glaciers had retreated and there were rivers or oceans covering this area, or times when volcanoes were present. So I have seen MANY cool rocks!

If you were to stay in Antarctica for the rest of your life, would you prefer living in Antarctica or Ann Arbor?

Wow… As much as I love Antarctica, I could not live the rest of my life here. The main reason for that is that my family and my work are in Ann Arbor. If I could take my family and Ann Arbor Public Schools with me, I could happily live in Antarctica! But without them, I must return to Ann Arbor.

What type of food do you receive at McMurdo Station and in your survival pack?

You wouldn’t believe how well we eat in McMurdo! We eat everything imagineable! Steak, fish, chicken, pork, food from all different cultures, lots of vegetarian food, amazing breads and desserts… The “freshies” (that is, fresh fruits and vegetables) depends on a flight coming in. We haven’t had a flight in from New Zealand for awhile, due to the weather, so we are all hungry for “freshies.”

At Survival School we had freeze dried food, dried soup, dried everything. It was really yucky! But it is still important to eat, because your body needs the calories to stay warm. We also ate a lot of chocolate, for quick energy.

How quickly will the ice sheets surrounding the main ice form and melt?

This is precisely what we are studying here in the rock core! The “main ice” is called the “ice cap” or the ”ice sheet.” The ice on edges of the continent, that respond relatively quickly to changes in climate, are called the “ice shelves.” Ice shelves can melt and disappear much faster than the ice caps. Sometimes huge pieces even break off, or “calve” in a matter of weeks, such as the Larson B Ice Shelf. The ice caps take longer to form and to melt.

The answer to your question depends a lot on whether you are talking about the Arctic or the Antarctic. I have given your question to one of the scientists here to try to get the most accurate answer I can find. It is still something that many scientists are working on. I promise to get back to you when I get a good answer! Perhaps you will be in the next generation of scientists to help answer that question!

What are the differences between now and before?

Last time I was here, many of the people were from the military (Army and Navy). They provided a lot of the support for the science research. Today, the Air National Guard flies the American aircraft, and maintain the aircraft and work in the Meteorological Center (weather) – but other than that, there are few military people here. Today, most of the jobs in McMurdo are filled through a company called Raytheon Polar Services. Believe it or not, there are 8 “support” people for every 1 scientist! That is a HUGE amount of support!

Have you found any fossils?

Yes, there have been some fossils found in the core. But not as many as people would like to see. We have found both microfossils, that you can only see with a microscope, and macrofossils, those that you can see with your bare eye. We also have a whole team of paleontologists ready to work on the fossils as soon as they appear in the core. The fossils tell us a great deal of information about the age of the rocks, as well as the environments represented by the rocks.

Have you seen any avalanches?

No, I haven’t. I hope I don’t – because they can be very scary and dangerous! Fortunately, there are not too many of them around here.

What has the coldest temperature during the time you've been there so far?

The coldest temperature has been around minus 33. The coldest windchill, which includes how cold it “feels” after taking into account the wind, is around minus 50. But this is nothing compared to the south pole, where it has been so cold, that people have not been able to travel in our out!

Are you having a great time at Antarctica?

YES, YES, YES! And I am learning so very much too – and I can’t wait to share it all with you!

Why did you have to ride on a slower plane?

The bigger, faster, more modern plane, the C-17, was broken down for a couple of days. By the time they got it working again, there were lots of people waiting to go down to the ice. So the pilots used 2 aircraft on the same day to fly people to the ice. I just happened to be on the slower plane – but that was fine with me!

Have you ever slipped on the ice?

Yes, I have slipped a little bit. It is very slippery!! It will be especially slippery out in the field area, when I finally get there. But I will be extra careful. And I will have something on the bottom of my boots called stable-icers – to help me get a better footing on the ice.

What is the funnest part about Antarctica?

Truly and honestly, I am having fun all the time! Perhaps the “funnest” part is getting to know all the different members of the ANDRILL team, from all over the world, and to learn about their backgrounds and how they came to be involved in ANDRILL.

What is the most interesting thing you have seen in Antarctica?

The core is the most interesting thing I have seen. It amazes me to bring up rocks from the deep, and to hear people discuss and interpret ancient worlds based on the rocks in the core.

Have you ever been on a big mountain of snow or ice?

I have not had the chance to do too much exploring on this trip. But I certainly did last time I was here, in 1985/86, when I worked in the Central Transantarctic Mountains. They are magnificent mountain peaks made of flat-lying sedimentary rocks.

Is it hard setting up the tent?

No, it is pretty easy to set up a Scott Tent – as long as it is not too windy.
When it gets windy, it’s a whole different story. Scott tents are great – they are just very heavy, so you need lots of people helping out.

What is your favorite food there?

Chocolate. ANY kind of chocolate. (I’ll be my students could have answered that for me!)

What has been your favorite sight so far?

My favorite sight so far has been late at night when the sun gets to its lowest point, and the shadows are long and beautiful. Sometimes you can see the layers of ice reflecting the sun, as in this picture. It is quite a special sight!

Tuesday, October 23, 2007

Life with The Core

The Core Arrives!
We have been really busy since the core started arriving from the drill rig. Really busy.
The night the first core arrived we had a spectacular sunset (well, it was more of a sundown, the sun was low on the horizon behind some clouds, and the outline of the Royal Society Range made it quite dramatic). You can see the helo - they call helicopters 'helos' here (pronounced 'hee-lows') - it is the dark blob on the right.



If the weather cooperates, the core gets transported from the drill rig by helicopter at 10 pm each evening. I took pictures from just behind the church, which gave me a wonderful view of the helicopter coming in and of the helo pad - if you look at the picture you can see all the Andrill scientists just standing outside near the lab watching it arrive - people don't usually hang round outside doing nothing here - it was a really exciting moment.

















Waiting for the core (see the people standing around)
















The core arrives at the helo pad














Waiting for the core















The core then got loaded into a truck, and driven up to the place where we split it and scan it. The Doctor from the drill site also came back on the helo. She had chipped a tooth and was going to see the dentist at McMurdo.













This is the first box of core - the core is carefully wrapped in plastic bags, and the drilling log is in the box.







Daily Schedule
It is really hard to remember which day it is when we work every day, and the schedule is pretty much the same each day - with special events like Bob's Birthday party last night, or Happy Camper School (coming up at the end of this week). There are also talks by scientists on Wednesdays and Sundays. I got an email from Mrs. Rotto's class (Room 133) at Talahi Community School in St. Cloud yesterday, as well as one from my son Josh, but before I answer your questions, I think I'll tell you what my daily schedule is:

Breakfast
I get up so I can get to breakfast in the Galley. Breakfast is served from 5:30 am - 7:30 am. If I get there earlier (about 6am) I will probably get to see the scientists that are on night shift - they 'log the core' which means they describe it in great detail, centimeter by centimeter, paying attention to (and taking notes on) all the changes that they see.

Morning at Crary Lab
So, after seeing the nightshift scientists (who are eating breakfast for their dinner) at breakfast, I head over to the Lab area where I work. In this picture it is the building on the right. The domed tent-like structure is called the Rak Tent, and it is where some of the core scanning and geochemistry is done. See how it is held down with large concrete blocks. Crary Lab is built on a slope, and has a series of floors that are linked by a ramp and stairs. The doors are just like freezer doors - only they keep the cold OUTSIDE the building! It is a great place to work - you have already seen the view from our window.























The 'Freezer Doors' to Crary Lab







I do some geology reading, answer emails, and answer questions on the Science Museum of Minnesota's "Science Buzz" website until 9:30 am, when the entire Andrill team meets in the library. We get an update from the Co-Chief Scientist, David Harwood. He tells us how far down the drill has penetrated into the sea floor, and whether more core was delivered from the drillsite by helicopter the previous evening (you will note that this is usually updated every day on the top right of the blog page), and any other general information we all need to know. Then Chris Fielding gives a brief summary of the key aspects of the core that the night team just finished logging. We all take turns making brief presentations on the work we are doing. Straight after the team meeting there is a core tour at about 10 am. This is when the non-nightshift people get given a 'trip through the core' - we see what Chris just summarized for us in the meeting. This is also the time when the scientists select what areas they want to collect samples from. They do this by placing a toothpick with a 'flag' on it next to the spot they want a sample from. They have until 11:00 am to do this. From about 10:30 until 12:30 I meet with the ARISE team, and we either discuss how to teach certain aspects of geology - or we have a speaker give a presentation. Sometimes we work on our own projects.












The core !








Lunch
At 12:30 I walk over to the Galley, have lunch, and get anything I need from the station store (it is basically only open during mealtimes). If there is mail waiting for me I walk over to the Post Office to get it. Then I walk back to the Lab, so I can start working on the core at 1:30.

Afternoon
I have been working with the core curation team. One of my responsibilities is scanning the core to get a picture of it, and also getting a series of readings on how magnetic it is. But I have mostly been sampling. This takes a long time, and requires being very meticulous. First we have to enter all the information on where each sample will be taken from into the computer log. One person enters it in to the computer, and another person calls out the depths, runs, and box numbers etc., as well as marking where the sample should be collected from on the core itself, with a white wax pencil. I usually stop doing this at about 6pm, and go to dinner. The curators usually keep going until sometime between 8 and 10 pm. They have to leave the room clean so the nightshift people can use it to log the next set of core.

Exercise and Dinner
I need to start getting some exercise in what people call the 'Gerbil Gym' where they have a bunch of treadmills and other exercise machines - I don't seem to have found time to do that yet. I will try to do that between 6 and 7 pm. The galley stops serving dinner at 7:30pm, so that gives me just enought time to get to dinner.

Evening
After dinner I generally go back to the Lab and try to finish up my Science Buzz answers, do some reading, or talk with the other scientists. On my way back to the dorm I often stop by the Coffee House. I still need to tell you more about the volcanic rocks and volcanoes, and about how to get to maps of Antarctica online. I'll do that next time, it is 10:15 pm now, and I am tired.


Answers to the questions from Mrs. Rotto's Class:
Sierra was wondering WHY you are studying rocks?
In general, I study rocks because I like to use them to tell the story of earth history. We humans use all sorts of earth materials in our everyday life, and by understanding the history of how the rocks came to be in our area, we know more about what is there, and what we should protect, and what we can safely use. Did you know that rocks and minerals get used for many household materials? See if you can figure out what rocks and minerals are used in the St. Cloud area. We are studying the sedimentary rock layers on the bottom of McMurdo Sound because they will tell us about how climate has changed in the past, and that information will help us understand how it is likely to behave in the future.

We wonder if you have learned any new things about rocks?
Yes, I have learned about the volcanic rocks on Ross Island, where McMurdo Station is - I have also learned what the sediments under the ice shelf look like - from studying the core. When I look at them with other scientists, we discuss what we see, and we interpret them. I am learning how to use what I see in the rock layers to understand what the climate was like.

Porter wants to know if you will be bringing rocks back to St. Cloud?
I will probably be able to bring some of the volcanic rock that makes up Ross Island back to St. Cloud with me to show all of you - you will be able to touch a pice of Antarctica! We have to ship the rocks back, so it will take a while to get there. I will probably be back before the rock arrives.

Alexis wants to know how you get the rocks out of the sea?
How do we get the rock core up from the bottom of McMurdo Sound? We have a special Drill Rig. Basically it is just like poking a straw into a milkshake, putting your thumb on the top of the straw, and lifting the straw out of the milkshake - only instead of it being milkshake and straw, it is rock layers and metal straws.

Wednesday, October 17, 2007

Great Questions from Bach Elementary School

Dear Bach School Fourth Graders,

Thank you for your great questions. I have done my best to answer them! Please keep those questions coming! It’s great to hear from you!!

1. What inspired you to go to Antarctica?

I have always had a fascination for remote, polar regions. When I was younger I dreamt of going to northern Alaska, Greenland, Iceland, and Spitzbergen. As I got older and I developed a greater awareness about the world, I became more and more curious about the south polar region. The remoteness of the continent, combined with the fascinating exploration history, compelled me to want to visit. When I started learning about geology, I became very interested in Antarctic geology. It is so fascinating! I had the incredible opportunity to study one interesting aspect of Antarctic geology for my Master’s Thesis, in 1985/1986. My interest in Antarctica never stopped when I became a teacher. I maintained my interest in Antarctica by sharing my knowledge and experience in Antarctica – because I wanted more people to be aware of the beauty and magic of the continent, and to understand, on some level, the importance of the science conducted there.

When I learned about the ARISE program, there was no question in my mind that it was something I wanted to do – and to bring the ANDRILL science alive to students. I hope I am successful!

2. Why is survival school called "happy camper school"?

I think a lot of people are afraid of survival school – because it can be really tough. So they renamed it so that it wouldn’t sound so scary. Don’t you think Happy Camper School sounds friendlier than Survival School?

3. Is there a native language in Antarctica?

There are no native people in Antarctica – so there is no native language. Nobody “lives” in Antarctica year round. People come to Antarctica from all over the world to do science, and to support the scientific programs. So you hear all different languages spoken. Here in the McMurdo where I am currently staying, I hear English, German, Italian, Russian, Spanish, French – and some languages I don’t even recognize! But we are all visitors. There are no natives!

4. What do you eat?

I eat a LOT! The cold makes me really, really hungry. I am not in the field yet, and I know that when I am, I will be eating a lot more than I am eating now! But currently, in McMurdo, there are cooks and a great big galley (or dining hall) - and I eat whatever they prepare. I eat pancakes, waffles, or eggs for breakfast – with LOTS of hot coffee. For lunch I eat sandwiches or hot dogs or fajitas or curry and rice. And for dinner I eat a lot of meat: pork, beef, chicken or fish, and breads and vegetables. The biggest difference between my Antarctic diet and my Michigan diet is: 1) I eat WAY more food in Antarctica; 2) I eat a lot more meat, because my body craves it; 3) I have to drink all the time because my body is do dehydrated out here; 4) I snack on a lot of chocolate because it helps keep me warm. I nibble on it all day long!

5. Are you enjoying Antarctica?

Absolutely! Can you tell by my blogs?

6. Is the ice cold? Yes, the ice is very cold. It is cold to touch, and cold to travel on. The funny thing is, if you want to stay warm on a very cold day, you dig a hole in the ice (this is easier on the ice shelf than on the sea ice). It is often warmer to stay in a hole in the snow and ice than to stay in a tent. In other words, the snow can be a great insulator!

7. Have you seen any penguins? No – I haven’t. (See my explanation below.)

8. What type of wildlife have you seen?

I saw one Weddell Seal since I have been on the ice. I also saw some fish in one of the laboratories in McMurdo. Some fish have a natural anti-freeze, and researchers have been studying this for awhile. I got to go into the lab to see the aquarium with the fish in it.

9. How large is your tent? (See below.)

10. How many layers do you wear?

That depends how cold it is outside. At Happy Camper School I work at least 3 layers. As I got hot, I took layers off so I didn’t sweat. When I stopped exerting myself, I bundled the layers back on. When the wind picks up, I need to put on lots and lots of layers – especially on my face. I bundle up so much that you can’t even see any of the skin on my face! It it were exposed, it might get frostbite!

11. How cold does it feel?

It depends on the temperature and the wind. The windchill has been as cold as about -50 F. You might think you couldn’t survive in that – but if you are properly dressed and prepared, it is quite tolerable.

12. Will you always have the things that you need?

I hope so! The chief scientists have done a great job of anticipating the things we will need out in the field. It is also a very creative group of people, and I’m sure we have enough supplies that we can find solutions to problems of missing things.

13. Did you get a new sleeping bag? (See below)

14. How does the sea ice look?
In places the ice looks very white, and in other places it looks blue. It depends where you are. There are quite a few cracks on the ice, but most of them are very shallow and we don’t worry about them. In some places the ice is covered by a dusting of snow. But I heard that our field area is almost entirely blue ice (which is really slippery). We will be wearing attachments to our boots to get a better grip on the ice, called “stable icers.”

15. Are there any other animals besides penguins and seals?
Very soon I expect to see some other birds – such as the Skua, which is a type of Antarctic gull. But there are no insects or beetles. Just a LOT of people!

16. Is global warming getting worse?

We know that Carbon Dioxide is definitely building up in the atmosphere – and that will cause more heat to be trapped on the earth. There is little doubt that that will cause the global climate to warm if we don’t do anything to change that buildup. But, with students like you asking these questions and being concerned about the health of the planet, we can make a difference!

17. Can you bring us back a rock?
I hope to bring back a rock that we can study together. I will have to wait and see about that…

Tuesday, October 16, 2007

Great Questions from Students! (And Attempted Answers)

From Mrs. Molly Crankshaw's Third Grade Class at Burns Park Elementary School, Ann Arbor, Michigan

> Dear Mrs. Gleason,
>
> We have had fun reading about your journey and are happy to hear that
> you made it safely there! We have some questions for you!
>
> 1. If your 5 gallon jug of water froze, how did you drink it?

GREAT question! We all had 1 quart Nalgene (a type of plastic) bottles
that we filled with hot water before we went outside. We kept those
bottles in a pocket on the inside of our parkas, close to our bodies,
so they wouldn't freeze. Having a little water allowed us to dig some
snow and put it in a pot, and add water to it, and melt it. Once we
had a big pot of boiling water, we drank some, refilled our nalgene
bottles, and poured boiling water into the big 5 gallon jugs to start
to melt them. For those jugs that were totally filled with solid ice,
there was nothing we could do except take them inside the hut to thaw.
But for the jugs that were only partially full, we were able to melt
some of the ice and turn back into water.

Did you know that water expands when it freezes? It does! If you stuck
a water bottle, completely full, in the freezer, the bottle would
stretch or crack when it froze - because the frozen water is bigger (or has MORE VOLUME)
than the liquid water. So - when we fill the 5 gallon jugs, or any
other container, with liquid that is likely to freeze, we must be very
careful NOT TO fill it completely. We don't want to crack our
containers!!

> 2. Have you sen any penguins yet?

No - not yet. McMurdo station is not near any of their rookeries, or
breeding grounds. So we won't expect to see a lot of them here.
However, once I head out into the field I expect that we will see an
occasional penguin, as we will be closer to their breediing grounds.
This is springtime in Antarctica, and this is when the penguins pair
up and mate.

Also, for the Emperor Penguins, who lay their eggs before winter, they
stay further out near open water, and near their food supply. (Can you guess what they eat?) When the
ice starts to break up, we may see them coming through cracks in the
ice. But right now they are still quite a distance away. I will certainly
share news of penguin sightings when we have them!

> 3. Do you get your zipper fixed on your sleeping bag?
Sleeping bags for survival school are given out on the first day, and
collected on the second day. So it wasn't "my" sleeping bag. But - you
bet - I did set that sleeping bag aside so that nobody else in future Happy Camper School classes would be
stuck with a broken zipper!

> 4. Do you know any of the other people there?

Yes! You may recall that I did field work here 22 years ago. I am
re-connecting with some of the people I did work with awhile back.
Also, since I worked as a geologist for the U.S. Geological Survey, I
worked in a pretty large community of geologists. Remarkably, one of
the other ARISE team members, Kate Pound, was a geologist I worked
with at the U.S.G.S. 25 years ago, when we were both students! It's a
small world, isn't it? (You should check out the wonderful blogs she is
writing!)

> 5. How big is your tent?

The tent I slept in in Survival School was about 10 feet by 10 feet.
(Challenge: what is the area of that tent???) That is the same size
tent I will be sleeping in in the field.

> 6. Is there any sun?

Yes - there is lots and lots and lots of sun! The sun is shining
almost all day long, though it does set lower in the sky for a few
hours each day. I watch the sun make a circle in the sky each day. On
cloudless days the sun is very intense. The ozone, a protective
layer of the atmosphere, is very very thin here because there is a hole in it - so we have to be
very careful here not to get sunburned. I put sunscreen on every day.

Also, since the ice and show surface is white, the sun is reflected
and then shines back up at us, sometimes burning the underside of my
chin, or my ears or my nose. I will be sure to post some pictures
showing you how sunny it is here!

> 7. What's the name of the cook?

Joan Hamre is the name of the cook. She is great!

> 8. Have you done any snow boarding?

No, I am not a snowboarder. But also, there is very little snow here!
Remember, this is a desert. McMurdo is on volcanic rock, and whatever
show is around is very compacted. Sea ice surrounds us, and that's no
good for snowboarding. There is some snow out on the ice shelf - and
on the sides of some of the neighboring mountains. In fact, at the New
Zealand base near here, called Scott Base, there is a natural half
pipe. But there are a lot of dangers associated with skiing or
snowboarding, such as cracks. So one has to be very careful before
setting out to do any recreational skiing or snowboarding.