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首页> 外文期刊>ICES Journal of Marine Science >The influence of the lunar nodal cycle on Arctic climate
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The influence of the lunar nodal cycle on Arctic climate

机译：月球周期周期对北极气候的影响

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The Arctic Ocean is a substantial energy sink for the northern hemisphere. Fluctuations in its energy budget will have a major influence on the Arctic climate. The paper presents an analysis of the time-series for the polar position, the extent of Arctic ice, sea level at Ham-merfest, Kola section sea temperature, Rost winter air temperature, and the NAO winter index as a way to identify a source of dominant cycles. The investigation uses wavelet transformation to identify the period and the phase in these Arctic time-series. System dynamics are identified by studying the phase relationship between the dominant cycles in all time-series. A harmonic spectrum from the 18.6-year lunar nodal cycle in the Arctic time-series has been identified. The cycles in this harmonic spectrum have a stationary period, but not stationary amplitude and phase. A sub-harmonic cycle of about 74 years may introduce a phase reversal of the 18.6-year cycle. The signal-to-noise ratio between the lunar nodal spectrum and other sources changes from 1.6 to 3.2. A lunar nodal cycle in all time-series indicates that there is a forced Arctic oscillating system controlled by the pull of gravity from the moon, a system that influences long-term fluctuations in the extent of Arctic ice. The phase relation between the identified cycles indicates a possible chain of events from lunar nodal gravity cycles, to long-term tides, polar motions, Arctic ice extent, the NAO winter index, weather, and climate.
机译：北冰洋是北半球的重要能源汇。其能源预算的波动将对北极气候产生重大影响。本文介绍了极地时间序列，北极冰的范围，咸鱼节的海平面，可乐断面的海水温度，罗斯特冬季气温和NAO冬季指数的时间序列分析，以此来确定来源占主导地位的周期。调查使用小波变换来识别这些北极时间序列中的周期和相位。通过研究所有时间序列中主要周期之间的相位关系，可以确定系统动力学。已经确定了北极时间序列中18.6年的月球节点周期的谐波频谱。该谐波频谱中的周期具有固定的周期，但没有固定的振幅和相位。大约74年的次谐波周期可能导致18.6年周期的相位反转。月球节点频谱与其他源之间的信噪比从1.6变为3.2。所有时间序列中的月球周期周期表明，存在一个受强迫的北极振荡系统，该系统受月球引力的控制，该系统影响北极冰范围的长期波动。识别出的周期之间的相位关系表明了从月球节点重力周期到长期潮汐，极运动，北极冰范围，NAO冬季指数，天气和气候的可能事件链。

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