Tuesday, December 16, 2008

Geology Rocks!

Though we think of Antarctica as just being cold and ice covered, there is actually a lot of interesting geology here.

First, there is an active volcano! Mount Erebus is the southern-most active volcano in the world! It sits on Ross Island not too far from McMurdo Station, and you can see it from most of the hiking trails around McMurdo. Because Mt. Erebus is so close, most of the rocks in the area are volcanic, like the basalt to the left. These rocks are erupted from the volcano and can travel very far. So, Mt. Erebus's influence is seen all the way across the sea ice in the Dry Valleys where we work. Most of the soil is made up of rocks like these that have been weathered and crushed. That is why most of the soil looks very grey and red. In this panoramic video, you can see the red soils from the volcanic rocks. You also can see Mt. Erebus in the background, puffing away! (The golf-ball looking things house satellites and other scientific equipment.)



There are other neat geological features besides the volcano. Sometimes rock formations will poke out of the ice sheet that covers part of Ross Island. Yesterday Katie and I hiked out to one of those formations called Castle Rock. I took another panoramic video along the way. Most of what you see is snow and ice, but you also see several rock outcrops and hilltops sticking out. Castle Rock is the formation just in front of Mt. Erebus at the beginning (and end) of the video. It looks very small compared to the large volcano, but that's only because we were still very far away when I took the video.


When you get closer to Castle Rock, you see that it's actually quite tall and cool looking! You can see different layers and lots of evidence of weathering. It's something you might expect to see in the western US, not Antarctica!
The hike out to Castle Rock was a nice break for Katie and I. Here we are enjoying my Uncle Ev's World Famous Buffalo Chip Cookies next to the emergency hut (nicknamed the "apple") on the hike:

Elizabeth has made it in to McMurdo! Here flight landed yesterday evening. Now she has to catch up on all of her trainings so that we can head to the field soon!

[Basalt photo from juster.]

Monday, December 15, 2008

Antarctic Geography

Most maps of the Earth make Antarctica look pretty small. But, actually, Antarctica is a big piece of land. It's just hard to visualize it on maps that split Antarctica in half, like this one:

But that's not what Antarctica actually looks like. If you look at the globe from the bottom, you'll see that Antarctica is shaped kind of like a porkchop.

Antarctica is the 5th largest continent on Earth, so it's not as big as North America. But, it's much larger than the United States:
Since the South Pole is in Antarctica, finding "north" is tricky. All points from the South Pole are to the north. It means that the map of Antarctica can be flipped any direction and it's always both right-side up and upside down! But, the map of Antarctica is usually viewed like this:So, the bottom half of the map is up-side down. McMurdo is on the bottom half of the map, but it's not to the south of the South Pole. It's to the north!

Antarctica is divided into two halves: East Antarctica and West Antarctica. The halves are divided by the Trans-Antarctic Mountain Range that run across the continent.

Antarctica is a continent, which means it's made out of land. There is soil all over Antarctica. But, most of Antarctica is covered in ice on top of the soil. Most of the land is covered in glaciers. That's all of the white on the map. However, there are small areas of the continent where the glaciers have retreated. That's what's brown on the map. Most of these areas are in the Trans-Antarctic Mountains on the coast of the Ross Sea. Those are the Dry Valleys where we work.

In addition to land covered in ice, some of the water around Antarctica is also permanently frozen. The grey-ish areas on the map in the Ross Sea and Weddell Sea are the permanent ice. It never melts, so is often treated like part of the continent, even though it's technically water.

McMurdo is on an island in the frozen Ross Sea called Ross Island. It lies at an area where the permanent ice meats the sea ice. During the colder months, the Ross Sea will be frozen far to the north of Ross Island. But, during the summer months (right now), the sea ice gradually melts back. Sometimes it even melts as far back as McMurdo, and the open ocean will be right on our doorstep. But, it never melts back farther than the permanent ice.

So, right now, where we sit in McMurdo on Ross Island, we are surrounded mostly by ice. There's permanent ice to the south and sea ice to the west. Across the sea ice we see the Trans-Antarctic Mountains in the distance. To the north, there is more sea ice and in the distance we can see the open ocean on the horizon. Once we get to the Dry Valleys (hopefully this weekend), our scenery will be very different!

Now that we've mostly finished getting the lab set up and our gear collected, we've been able to start on some science in the lab. We have to prepare the chemicals that we'll use to process soil samples. We also have to make up the solutions that we'll add to the soil in the field for our experiment. Here is Katie hard at work in the lab weighing chemicals:

Our third team member, Elizabeth, should be arriving in McMurdo today. Keep your fingers crossed that the weather stays good so that her plane can land!

Saturday, December 13, 2008

Snow School!


This is the first time I've been to McMurdo Station, so I've had to attend many different trainings since I've arrived. I've learned about taking care of the environment, working around helicopters, and using the laboratory here at McMurdo. But best of all I went to Snow School. I got to spend two days out on the ice learning about cold weather survival. On the first day, a HUGE Delta vehicle took our instructor, 7 other students, and me from McMurdo to Snow Mound City. Once we got there, we had to set up camp since we would be spending the night. Our instructor showed us how to set up different kinds of winter tents and build a snow wall to protect the camp from wind. The picture above shows our instructor demonstrating how to properly stake the tents so they don't blow away in the wind.
Several people in the class tried to build different kinds of shelters with blocks of snow. Two students built a very cool two room house. We all spent the night in either tents or the shelters we built. The next day we practiced communicating with different radios used in Antarctica. We used VHF and HF radios. We tried to talk to the South Pole with an HF, but no one answered us. We also learned what it is like to get lost in a snow storm. We all wore buckets on our heads and tried to look for each other. During huge storms the wind blows snow around so much that you can't see a thing, so wearing a bucket on your head is very similar to what it's really like to be lost in a storm. In the afternoon a Delta came and took us back to McMurdo Station. It's amazing how much I learned in just two days! Safety is very important when you live and work in a cold environment. Snow School is designed to give everyone the tools to make smart decisions, prevent problems, and safely do their work and enjoy this wonderful continent. Now I can say I've spent the night out on the ice in Antarctica.

Wednesday, December 10, 2008

Getting set up at McMurdo

McMurdo Station is located on Ross Island, about 60-70 miles from mainland Antarctica. It feels like a small town, with lots of buildings where people work, live, and play. But, unlike most towns, the buildings are all very industrial-looking. Most of them are warehouses with no windows to protect them from the strong winds and storms common in Antarctica.
Ross Island is surrounded by water, but the top layer of the water is frozen. As the summer progresses, the sea ice melts, causing the open ocean to come closer to McMurdo Station. But right now, the open sea is still quite a ways away to the North.

Across the sea ice from McMurdo to the west are the Trans-Antarctic Mountains. The mountains make up the edge of mainland Antarctica. The Dry Valleys where we will be doing our research are in those mountains. You can see them in the distance across the sea ice from McMurdo:

We're the first from our group to arrive in McMurdo. Next week, most of the rest of our group will arrive. So, Katie and I have just a few more quiet days before everyone else shows up and it starts to get busy!

During our first few days here in McMurdo, Katie and I have been busy getting set up for the next two months' work. This includes stocking our laboratory with all the items we'll need for our science, gathering our camping gear for the field, and gathering the equipment we'll need for our field work.
So, we've been spending a lot of time in the lab since we've been here. Here is a quick "tour" of the lab we're setting up, with a look at the nice view we have outside our window!


We also attend a lot of different training courses to learn about safety and other protocols that we need to know around McMurdo and the field. Since this is Katie's first year, she gets to go to Snow School tomorrow. Snow School is a fun 2-day class that includes a camping trip out on the sea ice. At Snow School, the Happy Campers learn about important Antarctic safety and other procedures.

Tuesday, December 9, 2008

We are in Antarctica!

We have finally arrived in McMurdo, Antarctica!

We woke up very early Tuesday morning in Christchurch to take our flight to McMurdo. Our first stop is the U.S. Antarctic Program headquarters to get suited up in all of our cold weather gear. It's summer in New Zealand, so it's very hot to walk around in all of that clothing!
Once we are dressed, it is time to fly! We fly to Antarctica on U.S. Air Force airplanes. So, we don't travel through the normal airport. Instead, we use a special USAP terminal. But, the process is very similar to a regular airport. We check in with our baggage and go through a metal detector. Our bags also go through an x-ray machine. But, instead of having an airline agent check us in, we're checked in by the New Zealand military, and we and all of our luggage are weighed on a big scale. After checking in, we wait in our terminal until it is time to board the plane. Throughout all of this, we're still wearing our cold-weather gear! So, of course, we start taking off layers as we wait.
Soon, it was time to board the plane. We flew on a US Air Force C-17. This plane is very big! There were only about 12 passengers traveling to Antarctica, plus the Air Force crew that fly the plane. The rest of the plane was full of cargo bound for Antarctica. The cargo was to be air-dropped over one of the remote field camps where planes are not able to land. That is how the field camp receives its regular supplies of food, fuel, and equipment. We, the scientists, sat on the side of the plane. In front of us were about 100 barrels of fuel strapped to parachutes on egg-carton pallets. After dropping us off at McMurdo, the plane flew to the field site, opened the hatch, and dropped the barrels out. The parachutes will open, and the egg carton pallets will act as shock-absorbers to soften the impact when the barrels hit the ground.

We were very disappointed that we didn't get to see the air-drop! But, it's probably easier for the Air Force crew to perform the air-drop without a bunch of scientists in the way...

After one last five-hour flight, we landed in McMurdo! Here is Katie enjoying her first sight of Antarctica!

From the runway, we are carried to McMurdo Station in a really big truck called a Delta.

After about 20 minutes driving across the sea ice, we arrive in McMurdo Station- our new home for the next two months! We will spend the next several days getting settled. I will tell you more about that in my next post.

Monday, December 8, 2008

Arrival in New Zealand

Katie and I have successfully arrived in Christchurch, New Zealand! Our flights were long, but relatively easy.

Travel to Antarctica is always a little bit chaotic. Plans can change at the last minute. As soon as we arrived at our hotel in Christchurch, we learned that our flight to Antarctica had changed. Instead of leaving two days later, we're leaving first thing tomorrow morning! Even though we would have preferred a nap after our 36 hours of traveling from Dartmouth, we immediately had to leave the hotel to collect all of our issued cold weather gear and repack our bags.

There are many layers of clothing that we wear while we're on the Ice. We have to try on all of the clothes to make sure they fit. Because Antarctica is very cold, we have three layers of clothes for warmth. We wear polypro long underwear pants and shirts , and then two layers of fleece. In this photo, Katie is wearing one of the fleece layers:
We also have special boots called "bunny boots". The boots are very insulated and water-proof to make sure our feet stay warm and dry. The insulation makes these boots very bulky and heavy, so walking in them can become hard!

On top of the warm clothes, we have a wind-proof layer. We wear a down parka with a fur-lined hood, wind pants, and goggles. Here is a photo of Katie wearing all of her layers, ready for the Ice!
Once we have picked out all of our clothes, we pack everything into the two orange duffel bags. Those two bags contain all of the gear and clothing we will use for the next two months!

After we were outfitted with our gear, we were finally able to return to our hotel to relax. But, our flight to Antarctica is very early tomorrow morning. We have to leave the hotel by 6 A.M. So, after a quick walk around town to enjoy the warmth and dinner at our favorite restaurant in Christchurch, we are going to bed. We have been traveling for a long time, and are very tired!

Keep your fingers crossed that the weather cooperates and we make it to McMurdo tomorrow!

Saturday, December 6, 2008

And I'm off!

My travel to Antarctica has begun! I'm currently on the bus heading to the airport. Keep your fingers crossed that the weather cooperates and I make all of my connections!

Next time I talk to you, I'll be in New Zealand!