Unprecedented springtime retreat of Antarctic sea ice in 2016
Unprecedented springtime retreat of Antarctic sea ice in 2016
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DOI：
10.1002/2017gl073656
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发表时间：
2017-07-16
影响因子：
5.2
通讯作者：
Deb, Pranab
中科院分区：
文献类型：
--
作者：
Turner, John;Phillips, Tony;Deb, Pranab
在2016年春季，南极海冰范围（SIE）以创纪录的75 x 10（3）km（2）d（-1）的速度减少，比平均速度快46%，比卫星时代的任何春季都快18%。海冰面积的减少也是异常的，比平均值大28%。异常负退缩发生在南极的所有部门，但最大的威德尔海和罗斯海。2016年11月3日至2017年4月9日期间，一年中的某一天出现了创纪录的负SIE异常。在威德尔海的快速冰撤退发生在强烈的偏北气流后，在8月下旬早期的最大冰范围。11月，罗斯海的海冰迅速消退，当时海面气压达到创纪录的高水平，南部环形模态也达到了自1968年以来的最低水平。
During austral spring 2016 Antarctic sea ice extent (SIE) decreased at a record rate of 75 x 10(3) km(2) d(-1), which was 46% faster than the mean rate and 18% faster than in any previous spring season during the satellite era. The decrease of sea ice area was also exceptional and 28% greater than the mean. Anomalous negative retreat occurred in all sectors of the Antarctic but was greatest in the Weddell and Ross Seas. Record negative SIE anomalies for the day of year were recorded from 3 November 2016 to 9 April 2017. Rapid ice retreat in the Weddell Sea took place in strong northerly flow after an early maximum ice extent in late August. Rapid ice retreat occurred in November in the Ross Sea when surface pressure was at a record high level, with the Southern Annular Mode at its most negative for that month since 1968.