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|Publication-citation=Jones, B.M., Hinkel, K.M., Arp, C.D., and Eisner, W.R., 2008. Modern erosion rates and loss of coastal features and sites, Beaufort Sea coast, Alaska. Arctic 61 (4), 361-372.
|DOI-entry=http://www.jstor.org/stable/40513223
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Jones, Benjamin M.; Hinkel, Kenneth M.; Arp, Christopher D.; Eisner, Wendy R.; 2008. Modern Erosion Rates and Loss of Coastal Features and Sites, Beaufort Sea Coastline, Alaska, Arctic, 61, 361–372.

Item Type journalArticle
Author(s) Benjamin M., Jones; Kenneth M., Hinkel; Christopher D., Arp; Wendy R., Eisner; 
Tag(s)
Title Modern Erosion Rates and Loss of Coastal Features and Sites, Beaufort Sea Coastline, Alaska
Journal Arctic
Journal Abbreviation
Book title
Volume 61
Issue 4
ISSN 0004-0843
URL external URL
DOI
Pages 361–372
Date 2008
Abstract This study presents modern erosion rate measurements based upon vertical aerial photography captured in 1955, 1979, and 2002 for a 100 km segment of the Beaufort Sea coastline. Annual erosion rates from 1955 to 2002 averaged 5.6 m a?�. However, mean erosion rates increased from 5.0 m a?� in 1955?79 to 6.2 m a?� in 1979?2002. Furthermore, from the first period to the second, erosion rates increased at 60% (598) of the 992 sites analyzed, decreased at 31% (307), and changed less than � 30 cm at 9% (87). Historical observations and quantitative studies over the past 175 years allowed us to place our erosion rate measurements into a longer-term context. Several of the coastal features along this stretch of coastline received Western place names during the Dease and Simpson expedition in 1837, and the majority of those features had been lost by the early 1900s as a result of coastline erosion, suggesting that erosion has been active over at least the historical record. Incorporation of historical and modern observations also allowed us to detect the loss of both cultural and historical sites and modern infrastructure. U. S. Geological Survey topographic maps reveal a number of known cultural and historical sites, as well as sites with modern infrastructure constructed as recently as the 1950s, that had disappeared by the early 2000s as a result of coastal erosion. We were also able to identify sites that are currently being threatened by an encroaching coastline. Our modern erosion rate measurements can potentially be used to predict when a historical site or modern infrastructure will be affected if such erosion rates persist. /// Cette �tude pr�sente les mesures de taux d'�rosion contemporains �tablies en fonction de photographies a�riennes verticales prises en 1955, en 1979 et en 2002 sur un segment de 100 km du littoral de la mer de Beaufort. Entre 1955 et 2002, les taux d'�rosion annuels ont atteint 5,6 m a?� en moyenne. Cependant, les taux d'�rosion moyens se sont accrus pour passer de 5,0 m a ' pendant les ann�es 1955-1979 � 6,2 m a?� dans les ann�es 1979 -2002. Par ailleurs, de la premi�re p�riode � la deuxi�me p�riode, les taux d'�rosion ont augment� � 60 % (598) des 992 sites analys�s, ont diminu� dans le cas de 31% (307) des sites, et chang� de moins de � 30 cm � 9 % (87) des sites. Les observations historiques et les �tudes quantitatives recueillies au cours des 175 derni�res ann�es nous ont permis de placer nos mesures des taux d'�rosion dans un contexte � plus long terme. Plusieurs des caract�ristiques c�ti�res le long de cette �tendue du littoral ont re�u des noms d'endroits typiques de l'Ouest dans le cadre de l'exp�dition de Dease et Simpson en 1837, et la majorit� de ces caract�ristiques avaient disparu vers le d�but des ann�es 1900 en raison de l'�rosion c�ti�re. Cela laisse donc entendre que l'�rosion s'est � tout le moins manifest�e pendant la p�riode vis�e par les donn�es historiques. Gr�ce � l'utilisation d'observations historiques et d'observations contemporaines, nous avons pu d�celer la perte de sites culturels et historiques de m�me que d'infrastructures modernes. Les cartes topographiques de l'U.S. Geological Survey r�v�lent un certain nombre de sites culturels et historiques connus, ainsi que des sites dot�s d'infrastructures modernes datant des ann�es 1950, sites et infrastructures qui avaient disparu vers le d�but des ann�es 2000 en raison de l'�rosion c�ti�re. Nous avons �galement �t� en mesure de cerner des sites qui sont pr�sentement menac�s par un littoral qui empi�te sur le terrain. Nos mesures des taux d'�rosion contemporains pourraient �ventuellement servir � d�terminer � quel moment un site historique ou une infrastructure moderne sera touch� advenant que des taux d'�rosion similaires persistent.
Language
Catalog JSTOR
Retrieve date 2025-06-20

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