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Floodbed sedimentology: A new method to reconstruct paleo-ice-jam flood frequency

Dates

Year
2004

Citation

Livingston, Joanne M., 2004, Floodbed sedimentology: A new method to reconstruct paleo-ice-jam flood frequency: University of Calgary (Canada).

Summary

For seven to eight months of the year the Yukon River is ice-covered in the interior of Yukon and Alaska. Between Dawson City, Yukon and Circle, Alaska, the Yukon River is narrowly-confined between steep bedrock valley walls with limited floodplain and the formation of ice jams and their related flooding is the most unpredictable hazard. In over a century of recorded river-ice break-up at Dawson City, the only floods to exceed bankfull have been ice-caused thus overbank sedimentation is the result of low-frequency - high-magnitude ice jam floods. In this thesis, I have developed a methodology to reconstruct paleo-ice jam flood histories on northern rivers for periods beyond the historic record (∼100 years) and in the case of the Yukon [...]

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Type
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Reference Item
6127 records
Reference File
NWBLCC-20160503-Saved.xml

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