Spatio-temporal variations in seasonal ice tongue submarine melt rate at a tidewater glacier in southwest Greenland
Spatio-temporal variations in seasonal ice tongue submarine melt rate at a tidewater glacier in southwest Greenland
复制标题
格陵兰岛西南部潮水冰川季节性冰舌海底融化速率的时空变化
DOI:
10.1017/jog.2019.27
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发表时间:
2019
影响因子:
3.4
通讯作者:
MOYER A
中科院分区:
文献类型:
--
作者:
MOYER A
Submarine melting of tidewater glaciers is proposed as a trigger for their recent thinning, acceleration and retreat. We estimate spring submarine melt rates (SMRs) of Kangiata Nunaata Sermia in southwest Greenland, from 2012 to 2014, by examining changes in along-fjord freeboard and velocity of the seasonal floating ice tongue. Estimated SMRs vary spatially and temporally near the grounding line, with mean rates of 1.3 ± 0.6, 0.8 ± 0.3 and 1.0 ± 0.4 m d−1 across the tongue in 2012, 2013 and 2014, respectively. Higher melt rates correspond with locations of emerging subglacial plumes and terminus calving activity observed during the melt season using time-lapse camera imagery. Modelling of subglacial flow paths suggests a dynamic system capable of rapid re-routing of subglacial discharge both within and between melt seasons. Our results provide an empirically-derived link between the presence of subglacial discharge plumes and areas of high spring submarine melting and calving along glacier termini.
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影响因子:
2.9
作者:
Moyer A
通讯作者:
Moyer A
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
R. Motyka;W. P. Dryer;J. Amundson;M. Truffer;M. Fahnestock
通讯作者:
M. Fahnestock
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
W. Pfeffer;M. Meier;T. Illangasekare
通讯作者:
T. Illangasekare
DOI:
--
发表时间:
2020
期刊:
Sprinkler Hydraulics
影响因子:
--
作者:
Harold S. Wass;R. P. Fleming
通讯作者:
R. P. Fleming
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
A. Ahlstrøm;P. Gravesen;S. Andersen;D. As;M. Citterio;R. Fausto;S. Nielsen;H. Jepsen;S. Kristensen;E. Christensen;L. Stenseng;R. Forsberg;S. Hanson;D. Petersen
通讯作者:
D. Petersen