+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Response of a marine-terminating Greenland outlet glacier to abrupt cooling 8200 and 9300 years ago



Response of a marine-terminating Greenland outlet glacier to abrupt cooling 8200 and 9300 years ago



Geophysical Research Letters 38.24



Long-term records of Greenland outlet-glacier change extending beyond the satellite era can inform future predictions of Greenland Ice Sheet behavior. Of particular relevance is elucidating the Greenland Ice Sheet's response to decadal- and centennial-scale climate change. Here, we reconstruct the early Holocene history of Jakobshavn Isbrae, Greenland's largest outlet glacier, using10 Be surface exposure ages and14 C-dated lake sediments. Our chronology of ice-margin change demonstrates that Jakobshavn Isbrae advanced to deposit moraines in response to abrupt cooling recorded in central Greenland ice cores ca. 8,200 and 9,300 years ago. While the rapid, dynamically aided retreat of many Greenland outlet glaciers in response to warming is well documented, these results indicate that marine-terminating outlet glaciers are also able to respond quickly to cooling. We suggest that short lag times of high ice flux margins enable a greater magnitude response of marine-terminating outlets to abrupt climate change compared to their land-terminating counterparts.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 037145195

Download citation: RISBibTeXText

DOI: 10.1029/2011gl049639


Related references

Influence of sea ice decline, atmospheric warming and glacier width on marine-terminating outlet glacier behavior in north-west Greenland at seasonal to interannual timescales. Journal of Geophysical Research: Earth Surface 118(3): 1210-1226, 2013

Seasonal speedup of a Greenland marine-terminating outlet glacier forced by surface melt-induced changes in subglacial hydrology. Journal of Geophysical Research 116.F3, 2011

Synchronizing a sea-level jump, final Lake Agassiz drainage, and abrupt cooling 8200 years ago. Earth and Planetary Science Letters 315-316, 2012

Greenland marine-terminating glacier area changes; 2000-2010. Annals of Glaciology 52.59: 91-98, 2011

Seasonal variability in the dynamics of marine-terminating outlet glaciers in Greenland. Journal of Glaciology 56.198: 601-613, 2010

Changes in the dynamics of marine terminating outlet glaciers in West Greenland 2000-2009. Journal of Geophysical Research 116.F2, 2011

Multi-decadal marine- and land-terminating glacier recession in the Ammassalik region, southeast Greenland. The Cryosphere (Online) 6.3: 625-639, 2012

Oceanic mechanical forcing of the dynamics of a marine-terminating Greenland glacier by ice melange removal and ocean tides. American Geophysical Union Fall Meeting, 2011

Understanding marine outlet glacier dynamics and calving from combining modelling and observations of Jakobshavn Isbrae, Greenland. American Geophysical Union Fall Meeting, 2011

80 years of frontal changes of marine-terminating glaciers in south-east Greenland. American Geophysical Union Fall Meeting, 2011

Rapid response of a major outlet glacier in Greenland, to climate variability over the last century. Oulu, Finland (FIN): University of Oulu, 2012

Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet. Geology 42(5): 455-458, 2014

Sudden increase in tidal response linked to calving and acceleration at a large Greenland outlet glacier. Geophysical Research Letters 37.12, 2010

Speed, extent, and sequence of abrupt climate change 8200 years ago. Eos, Transactions, American Geophysical Union 85(47, Suppl, 2004

Challenges to Understanding the Dynamic Response of Greenland's Marine Terminating Glaciers to Oceanic and Atmospheric Forcing. Bulletin of the American Meteorological Society 94(8): 1131-1144, 2013