TY  - JOUR
A1  - Irrgang, Anna Maria
A1  - Lantuit, Hugues
A1  - Gordon, Richard R.
A1  - Piskor, Ashley
A1  - Manson, Gavin K.
T1  - Impacts of past and future coastal changes on the Yukon coast - threats for cultural sites, infrastructure, and travel routes
JF  - Arctic Science
N2  - Yukon’s Beaufort coast, Canada, is a highly dynamic landscape. Cultural sites, infrastructure, and travel routes used by the local population are particularly vulnerable to coastal erosion. To assess threats to these phenomena, rates of shoreline change for a 210 km length of the coast were analyzed and combined with socioeconomic and cultural information. Rates of shoreline change were derived from aerial and satellite imagery from the 1950s, 1970s, 1990s, and 2011. Using these data, conservative (S1) and dynamic (S2) shoreline projections were constructed to predict shoreline positions for the year 2100. The locations of cultural features in the archives of a Parks Canada database, the Yukon Archaeological Program, and as reported in other literature were combined with projected shoreline position changes. Between 2011 and 2100, approximately 850 ha (S1) and 2660 ha (S2) may erode, resulting in a loss of 45% (S1) to 61% (S2) of all cultural features by 2100. The last large, actively used camp area and two nearshore landing strips will likely be threatened by future coastal processes. Future coastal erosion and sedimentation processes are expected to increasingly threaten cultural sites and influence travelling and living along the Yukon coast.
KW  - Arctic coastal dynamics
KW  - permafrost coast
KW  - shoreline projection
KW  - Inuvialuit cultural features
Y1  - 2019
U6  - https://doi.org/10.1139/as-2017-0041
SN  - 2368-7460
VL  - 5
IS  - 2
SP  - 107
EP  - 126
PB  - Canadian Science Publishing
CY  - Ottawa
ER  -