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Sun-induced synchronizations of the interannual to interdecadal hemispheric mean (land and sea) temperature variations
Journal of Atmospheric and Solar-Terrestrial Physics ( IF 1.9 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.jastp.2020.105450
Dmitry M. Sonechkin , Nadezda V. Vakulenko , Evgeny M. Volodin

Abstract Some hemispheric variation features of the near surface air and sea-surface temperatures are considered. A specially designed technique of the wavelet-based cross-correlations is used for this purpose. In-phase synchronizations of the hemispheric temperatures as whole as well as such synchronizations between land and sea temperatures are found within the timescales of one, two, and six-seven decades. In contrast, no synchronization is found within the timescales between the above indicated ones. Consideration of the afore-mentioned temperatures in a long integration of the climatic model of the Marchuk Institute of Numerical Mathematics of RAS (the “Pi-Control” experiment when external forces were accepted equal to their mean values during the preindustrial period) shows lack of any synchronization. However, results of the “Historical” experiment when effects of external forces, and, in particular, small variations of the total solar irradiation (TSI), were taken into consideration, reveal similar in-phase synchronizations in the same timescales in which the in-phase synchronizations exist in reality, but during the second half of the XXth century only. Perhaps, it is so because the TSI effects were taken into consideration incorrectly for the first half of the XXth century. All (in reality and in the model runs as well) synchronized temperature variations lag respective TSI variations. From this one can suppose that the namely TSI-variations, despite their amplitudes are very small, synchronize the hemispheric temperature variations.

中文翻译:

太阳引起的年际到年代际半球平均(陆地和海洋)温度变化的同步

摘要 考虑了近地表空气和海面温度的一些半球变化特征。为此使用了一种专门设计的基于小波的互相关技术。整个半球温度的同相同步以及陆地和海洋温度之间的同步在 1、2 和 6-7 的时间尺度内被发现。相比之下,在上述时间标度之间的时间标度内没有发现同步。在 RAS Marchuk 数值数学研究所的气候模型的长期整合中考虑上述温度(当外力被接受等于前工业化时期的平均值时的“Pi-Control”实验)表明缺乏任何同步。然而,当外力的影响,特别是总太阳辐射 (TSI) 的微小变化被考虑在内时,“历史”实验的结果揭示了相同时间尺度内的类似同相同步,其中同相同步存在于现实中,但仅在 20 世纪下半叶。也许,这是因为 20 世纪上半叶错误地考虑了 TSI 效应。所有(在现实中和模型中也运行)同步温度变化滞后于各自的 TSI 变化。由此可以假设,即 TSI 变化,尽管它们的幅度非常小,但与半球温度变化同步。被考虑在内,揭示了在现实中存在同相同步的相同时间尺度内的类似同相同步,但仅在 20 世纪下半叶。也许,这是因为 20 世纪上半叶错误地考虑了 TSI 效应。所有(在现实中和模型中也运行)同步温度变化滞后于各自的 TSI 变化。由此可以假设,即 TSI 变化,尽管它们的幅度非常小,但与半球温度变化同步。被考虑在内,揭示了在现实中存在同相同步的相同时间尺度内的类似同相同步,但仅在 20 世纪下半叶。也许,这是因为 20 世纪上半叶错误地考虑了 TSI 效应。所有(在现实中和模型中也运行)同步温度变化滞后于各自的 TSI 变化。由此可以假设,即 TSI 变化,尽管它们的幅度非常小,但与半球温度变化同步。之所以如此,是因为 20 世纪上半叶错误地考虑了 TSI 效应。所有(在现实中和模型中也运行)同步温度变化滞后于各自的 TSI 变化。由此可以假设,即 TSI 变化,尽管它们的幅度非常小,但与半球温度变化同步。之所以如此,是因为 20 世纪上半叶错误地考虑了 TSI 效应。所有(在现实中和模型中也运行)同步温度变化滞后于各自的 TSI 变化。由此可以假设,即 TSI 变化,尽管它们的幅度非常小,但与半球温度变化同步。
更新日期:2020-12-01
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