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Forecasting Arctic Coastal Erosion at Utqiagvik, Alaska.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Forecasting Arctic Coastal Erosion at Utqiagvik, Alaska./
作者:	Ford, Kristopher Ryan.
面頁冊數:	1 online resource (151 pages)
附註:	Source: Masters Abstracts International, Volume: 81-11.
Contained By:	Masters Abstracts International81-11.
標題:	Civil engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27835363click for full text (PQDT)
ISBN:	9798643173038

Forecasting Arctic Coastal Erosion at Utqiagvik, Alaska.
Ford, Kristopher Ryan.

Forecasting Arctic Coastal Erosion at Utqiagvik, Alaska. - 1 online resource (151 pages)

Source: Masters Abstracts International, Volume: 81-11.

Thesis (M.S.)--University of Alaska Anchorage, 2020.

Includes bibliographical references

The intensification of coastal storms, sea ice declination, and permafrost layer thaw have increased coastal erosion and storm surge at Utqiagvik, Alaska. The Inupiaq Public Works uses earth moving equipment (front end loaders) to scrap the beach to form artificial sand berms. The artificial sand berms protect the city from storm surge and coastal erosion. In this study, an XBeach Geomorphic change model was created for 11 storms to simulate berm breaching and coastal erosion. The model was validated using hydrodynamic and geomorphic field measurements from a volunteer community group, the Coastal Observers of Barrow. A storm ranking system was developed to determine which historic storm produced the most erosion in the past 15 years. Using the largest erosion producing storm, the artificial sand berm was redesigned to prevent berm breaching with consideration of 30 centimeters of sea level rise. This analysis shows that storm surges historically have been getting larger and more frequent in recent years. In order to prevent berm breaching in the foreseeable future, the artificial sand berm will need a peak elevation of 7 meters. Also, beach scrapping is not an effective strategy to build artificial sand berms. The artificial sand berm is not an efficient long term option for protecting the city from coastal erosion and storm surge.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798643173038Subjects--Topical Terms:

860360
Civil engineering.
Subjects--Index Terms:

Coastal engineeringIndex Terms--Genre/Form:

542853
Electronic books.

Forecasting Arctic Coastal Erosion at Utqiagvik, Alaska.
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500 $a Advisor: Ravens, Thomas.
502 $a Thesis (M.S.)--University of Alaska Anchorage, 2020.
504 $a Includes bibliographical references
520 $a The intensification of coastal storms, sea ice declination, and permafrost layer thaw have increased coastal erosion and storm surge at Utqiagvik, Alaska. The Inupiaq Public Works uses earth moving equipment (front end loaders) to scrap the beach to form artificial sand berms. The artificial sand berms protect the city from storm surge and coastal erosion. In this study, an XBeach Geomorphic change model was created for 11 storms to simulate berm breaching and coastal erosion. The model was validated using hydrodynamic and geomorphic field measurements from a volunteer community group, the Coastal Observers of Barrow. A storm ranking system was developed to determine which historic storm produced the most erosion in the past 15 years. Using the largest erosion producing storm, the artificial sand berm was redesigned to prevent berm breaching with consideration of 30 centimeters of sea level rise. This analysis shows that storm surges historically have been getting larger and more frequent in recent years. In order to prevent berm breaching in the foreseeable future, the artificial sand berm will need a peak elevation of 7 meters. Also, beach scrapping is not an effective strategy to build artificial sand berms. The artificial sand berm is not an efficient long term option for protecting the city from coastal erosion and storm surge.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Civil engineering. $3 860360
650 4 $a Climate change. $2 bicssc $3 2079509
653 $a Coastal engineering
653 $a Coastal erosion
653 $a Coastal morphology
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773 0 $t Masters Abstracts International $g 81-11.
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