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glaciated landscapes 7 (reducing damage caused by heat energy (darker…
glaciated landscapes 7
introduction to Alaska
alaska has huge oilfields, including those around prudhoe bay on the north slope of alaska
the trans-alaskan pipeline (taps) is 800 miles long and was built to transport the oil from prudhoe to the ice free port of valdez, where it could then be transported to the rest of the US
Inupiat communities
oil industry has formed, and has been able to transform lives. Barrow now has numerous new businesses
the new businesses = able to provide support services to PBO and also for offshore oil drilling sites
this has created jobs, and also led to an influx of new people living in the town. population has doubled and now four-wheelers, powerboats and plane transportation is used + improved schools
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thermokarst
a thermokarst is used to refer to areas of hummocky, irregular ground interposed by waterlogged depressions created as ground ice, including permafrost thaws
the differential thawing of ground ice leads to the development of thermokarsts. which can be as a result of clearance of vegetation and construction in the tundra, but also a result of recent global warming
increased solifluction
more heat will melt the permafrost, meaning more meltwater is produced
saturated material will result in solifluction, this is the downhill movement of material
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ice wedge polygons
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this depression will then be occupied by meltwater, via oil extraction methods heat is released from the buildings and will reach the ground which will cause differential thawing
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