西太平洋气旋频数、强度与地球日长、章动的相关性探索

发布时间：2018-06-12 14:50

本文选题：气旋频数 + 气旋强度　；参考：《地球物理学进展》2016年06期

【摘要】：地球自转参数变化引发大气、洋流变化,因此本文试图探索西太平洋气旋频数、强度与地球自转参数的相关性,结果表明:日长月平均值与下一月气旋频数呈正比,章动月标准差与下一月气旋强度相关性较好;频数与强度极端年份的日长、章动逐日变化有显著差异,频数最大值年与最小值年对应的日长位相呈明显的反相,相位若接近同步,则大值年对应的日长明显大于小值年;频数极端年份4-6月章动的位相差异明显,7-9月章动幅度差异明显;强度极端年对应的前30天逐日日长呈非常显著的反相关系,x方向章动具有明显差异,大值年的x方向章动值均偏小.
[Abstract]:The variation of the Earth's rotation parameters causes changes in the atmosphere and ocean currents, so this paper attempts to explore the correlation between the frequency and intensity of cyclones in the western Pacific Ocean and the parameters of the Earth's rotation. The results show that the mean values of the sun, long months and months are in direct proportion to the frequency of cyclones in the next month. The correlation between the nutation standard deviation and the cyclone intensity in the next month is good, the diurnal variation of the frequency and intensity extreme year is significantly different, and the phase of the diurnal length corresponding to the maximum and the minimum year of frequency is obviously inverse. If the phase is close to synchronization, the length of day corresponding to large value year is obviously larger than that of small value year, and the phase difference of April to June nutation in extreme frequency year is obviously different from that of July to September nutation amplitude. The daily length of the first 30 days corresponding to the intensity extreme year shows a very significant inverse phase relation: the nutation in the x direction is obviously different, and the nutation value in the x direction is smaller in the large value year.
【作者单位】：海南61936部队;中国科学院大气物理研究所东亚区域气候环境重点实验室;海南92810部队气象台;
【基金】：国家自然科学基金(41275090)资助
【分类号】：P732

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