GSTDTAP  > 气候变化
DOI10.1029/2021GL094149
Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier
Yoshihiro Nakayama; Chad A. Greene; Fernando S. Paolo; Vigan Mensah; Hong Zhang; Haruhiko Kashiwase; Daisuke Simizu; Jamin S. Greenbaum; Donald D. Blankenship; Ayako Abe-Ouchi; Shigeru Aoki
2021-08-16
发表期刊Geophysical Research Letters
出版年2021
英文摘要

The Totten Ice Shelf (TIS) in East Antarctica has received increasing attention in recent years due to high basal melt rates, which have been linked to a presence of warm modified Circumpolar Deep Water (mCDW) observed at the ice front. We show that mCDW on-shelf intrusions towards the TIS strengthen when the Antarctic Slope Current (ASC) weakens. This demonstrates that the ASC has a blocking effect and ASC weakening leads to on-shelf intrusions, as proposed by previous observational studies. The interannual variability of the ASC is controlled primarily by atmospheric and oceanic conditions beyond our regional model domain. We further show that heat intrusions onto the continental shelf off the TIS are not influenced by off-shelf warming but are enhanced with coastal freshening, suggesting positive feedback whereby ice melt and freshening upstream could start a chain reaction, leading to increased melt, and further coastal freshening.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/336003
专题气候变化
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Yoshihiro Nakayama,Chad A. Greene,Fernando S. Paolo,et al. Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier[J]. Geophysical Research Letters,2021.
APA Yoshihiro Nakayama.,Chad A. Greene.,Fernando S. Paolo.,Vigan Mensah.,Hong Zhang.,...&Shigeru Aoki.(2021).Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier.Geophysical Research Letters.
MLA Yoshihiro Nakayama,et al."Antarctic Slope Current modulates ocean heat intrusions towards Totten Glacier".Geophysical Research Letters (2021).
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