Data-adaptive harmonic decomposition and prediction of Arctic sea ice extent
Data-adaptive harmonic decomposition and prediction of Arctic sea ice extent
复制标题
北极海冰范围的数据自适应调和分解与预测
DOI:
10.1093/climsys/dzy001
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Ghil, Michael
中科院分区:
文献类型:
--
作者:
Kondrashov, Dmitri;Chekroun, Mickaël D;Ghil, Michael
Decline in the Arctic sea ice extent (SIE) is an area of active scientific research with profound socio-economic implications. Of particular interest are reliable methods for SIE forecasting on subseasonal time scales, in particular from early summer into fall, when sea ice coverage in the Arctic reaches its minimum. Here, we apply the recent data-adaptive harmonic (DAH) technique of ,Chaos,27for the description, modeling and prediction of the Multisensor Analyzed Sea Ice Extent (MASIE, 2006–2016) data set. The DAH decomposition of MASIE identifies narrowband, spatio-temporal data-adaptive modes over four key Arctic regions. The time evolution of the DAH coefficients of these modes can be modelled and predicted by using a set of coupled Stuart–Landau stochastic differential equations that capture the modes’ frequencies and amplitude modulation in time. Retrospective forecasts show that our resulting multilayer Stuart–Landau model (MSLM) is quite skilful in predicting September SIE compared to year-to-year persistence; moreover, the DAH–MSLM approach provided accurate real-time prediction that was highly competitive for the 2016–2017 Sea Ice Outlook.
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DOI:
10.3934/dcds.2016.36.4133
发表时间:
2015
期刊:
arXiv: Chaotic Dynamics
影响因子:
--
作者:
M. Chekroun;M. Ghil;Honghu Liu;Shouhong Wang
通讯作者:
Shouhong Wang
影响因子:
5.2
作者:
M. Sigmond;M. C. Reader;G. Flato;W. Merryfield;A. Tivy
通讯作者:
A. Tivy
DOI:
10.1007/978-3-319-58895-7_10
发表时间:
2018
期刊:
SIAM J. Appl. Dyn. Syst.
影响因子:
--
作者:
D. Kondrashov;M. Chekroun;X. Yuan;M. Ghil
通讯作者:
M. Ghil
影响因子:
2.4
作者:
A. Chorin;O. Hald
通讯作者:
O. Hald
影响因子:
5.2
作者:
Day, J. J.;Hawkins, E.;Tietsche, S.
通讯作者:
Tietsche, S.