Recent irreversible retreat phase of Pine Island Glacier
Recent irreversible retreat phase of Pine Island Glacier
复制标题
松岛冰川近期不可逆转的退缩阶段
DOI:
10.1038/s41558-023-01887-y
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发表时间:
2023
影响因子:
30.7
通讯作者:
Reed B
中科院分区:
文献类型:
--
作者:
Reed B
Pine Island Glacier (PIG), a part of the West Antarctic marine ice sheet, has recently undergone substantial changes including speed up, retreat and thinning. Theoretical arguments and modelling work suggest that marine ice sheets can become unstable and undergo irreversible retreat. Here, we use an ice-flow model validated by observational data to show that a rapid PIG retreat in the 1970s from a subglacial ridge to an upstream ice plain was self-enhancing and irreversible. The results suggest that by the early 1970s, the retreat of PIG had reached a point beyond which its original position at the ridge could not be recovered, even during subsequent periods of cooler ocean conditions. The irreversible phase ended by the early 1990s after almost 40 km of retreat and 0.34 mm added to global mean sea level, making PIG the main contributor from the Antarctic ice sheet in this period.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
N.Watanabe;et al.;梅原さおり
通讯作者:
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影响因子:
30.7
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DOI:
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DOI:
--
发表时间:
2018
期刊:
The Cryosphere
影响因子:
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作者:
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