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> Sediment Coring: Healy Icebreaker

Erosion in Action

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Description: Zooming in a little closer to the mountains shown in the "Wide Ranging Mountains" picture, you can see a classic drainage pattern created in mountainous areas. What drainage pattern is this? We're obviously higher up in elevation, so is the white color of those streams caused by frozen water or rapids?

Wide Ranging Mountains

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Description: 15 minutes into the Fairbanks-Seattle flight, I think this is definitely part of the Alaska Range, and the picture gives and idea of how far-reaching this range is.

Another Braided Stream

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Description: This is about 13 minutes into the flight from Fairbanks to Seatle, so I don't think this is still the Tanana River, but it's still a good example of a braided stream.

Wow!

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Description: OK, maybe I'm strange, but this picture just takes my breath away! This is a wider shot of the stream in the "Over the Hill" picture. Not only does it show the extreme meanders, but it shows great examples of oxbow lakes and meander scars. What are meander scars? If this image isn't in a textbook already, it should be!

Over the Hill

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Description: This picture shows a river thats definitely in the "old age" stage of development. What are the characterisitcs of an "old" stream?

Point Bars and Oxbow L...

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Description: In addition to point bars, this stream also has some oxbow lakes associated with it. How do oxbow lakes form?

Point Bars

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Description: This image, about 6 minutes into the flight from Fairbanks, shows a river with some well-developed point bars. What is a point bar? Why do they form?

Frozen River

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Description: This is a smaller river or stream just outside of Fairbanks (Notice the Tanana River at the top of the picture). Evidence that it has only recently warmed up is the fact this stream still appears to be frozen.

Tanana River, Fairbanks

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Description: This is the Tanana River on the south side of Fairbanks. It looks to me like a classic braided-stream pattern. What causes a braided stream? What causes the channels to weave back and forth? If Fairbanks is a relatively flat area, what is the source of all the sediment?

Approaching the Alaska...

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Description: This was the first set of mountains flown over shortly after leaving Fairbanks and headed to Seattle. This was about 8 minutes into the flight, so those familiar with the flight might be able to answer whether these are just considered foothills, or are part of the Alaska Range.

Fairbanks, Alaska

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Description: A picture closer to the main part of the city.

Leaving on a Jet Plane

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Description: This is just after takeoff from the Fairbanks airport, heading home after the orientation meeting. Again, the river in the picture is the Chena.

Midnight Twilight

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Description: It's not the clearest picture, but I still wanted to include this to show that even outside the Arctic Circle, and this early in the year (April 30), the days are still long. This is a well-lit horizon at about 12:30 am

In the Frigid Near-Arctic

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Description: Since we were here for Arctic training, we debated whether we should tell people we were roughing it in harsh Arctic conditions instead of telling them it was actually warmer than where we came from. To support our claim, we'd have to find some snow. Here, I try to take a picture that would appear to be fellow TREC teachers, Ute Kaden and Bob Oddo, with a massive snowbank in the background. I don't know, I think the lack of parkas, Bob's sleaves rolled up, and an obviously old melting pile of snow kinda gives us away. biggrin.gif

The Princess Riverside...

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Description: This picture is taken from the banks of the Chena River, looking upstream, with the hotel we stayed at on the right.

The Chena River-Fairbanks

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Description: This was a picture taken out of the Fairbanks Princess Riverside Lodge where we stayed for the orientation meeting. While it was a toasty 75 degrees F while we were there, it was only recently that it warmed up, so large chunks of ice could be seen flowing down this river while we were there

Near Atlanta, Georgia

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Description: OK, so this is far from Fairbanks and the Arctic, but still thought it was a good picture of a typical east coast USA drainage pattern. To relate it to the project, I guess you could compare the terrain and vegetation cover at this time of year (April 28) to Alaska.

The Native Peoples of ...

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Description: This is a slide taken from Sean Topkok's presentation to us that can be downloaded at http://www.arcus.org/TREC/VBC/index.php?showtopic=11
It shows the wide variety of native populations found in that area.

What's Wrong With ...

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Description: I can't tell if Amy, Tom, and I are too fast or too slow, but we're obviously not at the same point in the dance as our instructor is. Maybe we just wanted to show off our "strength." The arm bent upright, with elbow in hand was dance step symbolic of strength. On the left, another TREC teacher, Leslie Pierce, makes it into the picture.

We Won't Quit Our ...

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On: 1116127321

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Description: OK, so we're new at this. We obviously need to work on our sychronization, but we're still having fun!



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