Explain: This module made me think about a relatively new glacier that my buddy pointed out to me while hiking Mt. St. Helens Alaska
While the Crater Glacier has been gaining mass, this is mostly due to its unique position in a north-facing crater at elevation. It rarely (if ever) receives direct sunlight, and all the snow that avalanches off the rim combines with falling snow to provide lots of additional mass each year. Most of the mountain top glaciers that remain around Sitka
Extend: I loved the Extreme Ice Survey and Repeat Photography of Alaska Glaciers links. I will be using these in my physics class next semester when we talk about glaciers. I also enjoyed the simplicity of the USGS pages about the composition of water on Earth and Ice on Earth. Also, the videos of Jakobshavn Glacier in Greenland were amazing. My buddy has done lots of work studying the basal characteristics of glaciers in attempts to understand the processes that lead to glacial movement. It is important to be able to model the movement of glaciers since what is learned could be used to more accurately model climate change.
Evaluate: This module was heavy on glacier-related resources. Has anyone heard the story of the girl who called the glacier? It is an important story in the oral history of the Hoonah Tlingit that tells of the advancing ice and the people’s forced move. I heard it this summer while rafting with some people from Hoonah. Check out this YouTube video that very briefly tells the story:
Three Colleagues:
Ernestine shares some reflections on using salt for making ice cream and clearing roads, and also some discussions on the basal characteristics of glaciers. She also shared an interesting link about the 100-person village.
Konrad writes about isostatic rebound in the Anchorage area. Can it really be 1000 feet!?
Eric provides a wealth of useful links in his Module 7 blog.
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