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Alaska shorefast ice: Interfacing ge...

Druckenmiller, Matthew L.

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Alaska shorefast ice: Interfacing geophysics with local sea ice knowledge and use.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Alaska shorefast ice: Interfacing geophysics with local sea ice knowledge and use./
作者:	Druckenmiller, Matthew L.
面頁冊數:	210 p.
附註:	Source: Dissertation Abstracts International, Volume: 73-02, Section: B, page: 8260.
Contained By:	Dissertation Abstracts International73-02B.
標題:	Geophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3484668
ISBN:	9781267024930

Alaska shorefast ice: Interfacing geophysics with local sea ice knowledge and use.
Druckenmiller, Matthew L.

Alaska shorefast ice: Interfacing geophysics with local sea ice knowledge and use. - 210 p.

Source: Dissertation Abstracts International, Volume: 73-02, Section: B, page: 8260.

Thesis (Ph.D.)--University of Alaska Fairbanks, 2011.

This thesis interfaces geophysical techniques with local and traditional knowledge (LTK) of indigenous ice experts to track and evaluate coastal sea ice conditions over annual and inter-annual timescales. A novel approach is presented for consulting LTK alongside a systematic study of where, when, and how the community of Barrow, Alaska uses the ice cover. The goal of this research is to improve our understanding of and abilities to monitor the processes that govern the state and dynamics of shorefast sea ice in the Chukchi Sea and use of ice by the community.

ISBN: 9781267024930Subjects--Topical Terms:

535228
Geophysics.

Alaska shorefast ice: Interfacing geophysics with local sea ice knowledge and use.
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500 $a Source: Dissertation Abstracts International, Volume: 73-02, Section: B, page: 8260.
500 $a Adviser: Hajo Eiken.
502 $a Thesis (Ph.D.)--University of Alaska Fairbanks, 2011.
520 $a This thesis interfaces geophysical techniques with local and traditional knowledge (LTK) of indigenous ice experts to track and evaluate coastal sea ice conditions over annual and inter-annual timescales. A novel approach is presented for consulting LTK alongside a systematic study of where, when, and how the community of Barrow, Alaska uses the ice cover. The goal of this research is to improve our understanding of and abilities to monitor the processes that govern the state and dynamics of shorefast sea ice in the Chukchi Sea and use of ice by the community.
520 $a Shorefast ice stability and community strategies for safe hunting provide a framework for data collection and knowledge sharing that reveals how nuanced observations by Inupiat ice experts relate to identifying hazards. In particular, shorefast ice break-out events represent a significant threat to the lives of hunters. Fault tree analysis (FTA) is used to combine local and time-specific observations of ice conditions by both geophysical instruments and local experts, and to evaluate how ice features, atmospheric and oceanic forces, and local to regional processes interact to cause break-out events.
520 $a Each year, the Barrow community builds trails across shorefast ice for use during the spring whaling season. In collaboration with hunters, a systematic multi-year survey (2007--2011) was performed to map these trails and measure ice thickness along them. Relationships between ice conditions and hunter strategies that guide trail placement and risk assessment are explored. In addition, trail surveys provide a meaningful and consistent approach to monitoring the thickness distribution of shorefast ice, while establishing a baseline for assessing future environmental change and potential impacts to the community.
520 $a Coastal communities in the region have proven highly adaptive in their ability to safely and successfully hunt from sea ice over the last 30 years as significant changes have been observed in the ice zone north of Alaska. This research further illustrates how Barrow's whaling community copes with year-to-year variability and significant intra-seasonal changes in ice conditions. Hence, arctic communities that have coped with such short-term variability may be more adaptive to future environmental change than communities located in less dynamic environments.
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