A Spring Barrier for Regional Predictions of Summer Arctic Sea Ice
A Spring Barrier for Regional Predictions of Summer Arctic Sea Ice
复制标题
夏季北极海冰区域预测的春季屏障
DOI:
10.1029/2019gl082947
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发表时间:
2019
影响因子:
5.2
通讯作者:
E. Blanchard‐Wrigglesworth
中科院分区:
文献类型:
--
作者:
M. Bushuk;D. Bonan;Michael Winton;E. Blanchard‐Wrigglesworth
Seasonal forecast systems can skillfully predict summer Arctic sea ice up to 4 months in advance. For some regions, however, there is a springtime predictability barrier that causes forecasts initialized prior to May to be less skillful. Since this barrier has only been documented in a few general circulation models (GCMs), we evaluate GCMs participating in phase 5 of the Coupled Model Intercomparison Project. We first show sea ice volume skillfully predicts summer sea ice area (SIA) and has similar skill to a perfect model experiment. Given this result, we assess regional SIA predictability across each GCM and find a universal predictability barrier in late spring. For SIA at each summer target month in the marginal seas of the Arctic basin, a notable drop in prediction skill occurs from June to May in each GCM. This suggests summer sea ice forecasts initialized after 1 June will have substantially better prediction skill than forecasts initialized before.
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影响因子:
5.2
作者:
Day, J. J.;Hawkins, E.;Tietsche, S.
通讯作者:
Tietsche, S.
DOI:
10.1002/2016ef000495
发表时间:
2017
期刊:
Earth's Future
影响因子:
--
作者:
Petty A
通讯作者:
Petty A
影响因子:
5.2
作者:
Tietsche, S.;Day, J. J.;Hawkins, E.
通讯作者:
Hawkins, E.
影响因子:
5.1
作者:
Day, Jonathan J.;Tietsche, Steffen;Hawkins, Ed
通讯作者:
Hawkins, Ed