TY  - JOUR
PY  - 2020//
TI  - Detection and assessment of a large and potentially tsunamigenic periglacial landslide in Barry Arm, Alaska
JO  - Geophysical research letters
A1  - Dai, Chunli
A1  - Higman, Bretwood
A1  - Lynett, Patrick J.
A1  - Jacquemart, Mylène
A1  - Howat, Ian M.
A1  - Liljedahl, Anna K.
A1  - Dufresne, Anja
A1  - Freymueller, Jeffrey T.
A1  - Geertsema, Marten
A1  - Ward Jones, Melissa
A1  - Haeussler, Peter J.
SP  - e2020GL089800
EP  - e2020GL089800
VL  - 47
IS  - 22
N2  - The retreat of glaciers in response to global warming has the potential to trigger landslides in glaciated regions around the globe. Landslides that enter fjords or lakes can cause tsunamis, which endanger people and infrastructure far from the landslide itself. Here we document the ongoing movement of an unstable slope (total volume of 455 × 10(6) m(3)) in Barry Arm, a fjord in Prince William Sound, Alaska. The slope moved rapidly between 2010 and 2017, yielding a horizontal displacement of 120 m, which is highly correlated with the rapid retreat and thinning of Barry Glacier. Should the entire unstable slope collapse at once, preliminary tsunami modeling suggests a maximum runup of 300 m near the landslide, which may have devastating impacts on local communities. Our findings highlight the need for interdisciplinary studies of recently deglaciated fjords to refine our understanding of the impact of climate change on landslides and tsunamis.<p />  <p>Language: en</p>
LA  - en
SN  - 0094-8276
UR  - http://dx.doi.org/10.1029/2020GL089800
ID  - ref1
ER  -