Unusual coastal flood impacts in Salmon Valley, McMurdo Sound, Antarctica

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Dayton, P. K., Hammerstrom, K., Jarrell, S. C., Kim, S., Nordhausen, W., Osborne, D. J., & Thrush, S. F. (2016). Unusual coastal flood impacts in Salmon Valley, McMurdo Sound, Antarctica. Antarctic Science, 1-7. doi:10.1017/S0954102016000171
Metadata
TitleUnusual coastal flood impacts in Salmon Valley, McMurdo Sound, Antarctica
AuthorsP. Dayton, K. Hammerstrom, S. Jarrell, S. Kim, W. Nordhausen, D. Osborne, S. Thrush
AbstractLarge floods bringing significant sediments into the coastal oceans have not been observed in Antarctica. We report evidence of a large flood event depositing over 50 cm of sediment onto the nearshore benthic habitat at Salmon Bay, Antarctica, between 1990 and 2010. Besides direct observations of the sedimentation, the evidence involves a debris flow covering old tyre tracks from the early 1960s, as well as evidence of a considerable amount of sediment transported onto the Salmon Creek delta. We believe that the flood was sourced from the Salmon Glacier and possibly the smaller Blackwelder Glacier. Such floods will be more common in the future and it is important to better understand their ecological impacts with good monitoring programmes. © Antarctic Science Ltd 2016
JournalAntarctic Science
Date2016
Start page1
End page7
ISSN09541020
Subjectsbasal freezing, baseline monitoring, coastal ecology, ice uplift, sedimentation
NoteExport Date: 13 May 2016, Article in Press

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