signature=7a2808899a26c33f69b1b1e10d458049,Signature of the Antarctic Circumpolar Wave in the Surfac...

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于 2021-05-29 15:46:43 发布

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该研究运用连续小波分析法探究了1979年1月至2005年12月期间马特鲁地区的网格表面温度异常。结果显示，早期内2-8个月的波动对表面温度变化有显著影响。1989-1991年间，高频率的温度波动与南极圈环极波和准双年信号的叠加有关。后期分析中，16-24个月的周期对表面温度变化的影响尤为强烈。

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摘要：

The gridded surface temperature (ST) anomalies over Maitri for the period January 1979 - December 2005 were analyzed using continuous wavelet analysis. The early part of the study showed the influence of 2 - 8 month wave on variation of ST. Combined analysis of the wavelet power spectrum and the ST anomalies revealed that high fluctuations in the surface temperature during the year 1989 - 1991 were associated with the superposition of Antarctic circumpolar wave and the quasi-biannual signal. The later part of the study period showed strong effect of the 16 - 24 month signal over the ST variation.

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