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Responses of abrupt temperature changes/warming hiatuses to changes in their influencing factors: A case study of northern China

机译：突然温度变化/升温性欲对影响因素的变化的反应 - 以中国北方的案例研究

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Determining the response of abrupt temperature changes/warming hiatuses to changes in their influencing factors can provide a reference for investigating their mechanism. The present study, using the Mann-Kendall test, based on data (including average minimum temperature (T_min), average temperature (T_ave) and average maximum temperature (T_mix)) recorded at 357 meteorological stations in northern China and its surrounding regions as well as large-spatial-scale data (e.g. Atlantic multidecadal oscillation (AMO), global radiative forcing of CO_2 (RF_CO2) and radiative forcing of annual greenhouse gases (RF_AGG)) for the period 1951-2016, the characteristics of abrupt temperature changes/warming hiatuses and their response to their influencing factors were qualitatively and quantitatively determined. The following results were obtained. Overall, from the late 1970s to the 1990s, as the RF_AGG continuously increased, the Pacific decadal oscillation (PDO) remained in a positive phase, the AMO and total solar radiation (SR) continuously increased, the multivariate El Nino southern oscillation (ENSO) index (MEI) changed abruptly, the wind speed (WS), atmospheric pressure (AP) and relative humidity (RH) in each zone continuously decreased/increased, their trends changing subsequently, and abrupt changes in the three temperature metrics (i.e. the T_min, T_ave and T_max) occurred in each zone during the period 1977-2004. Similarly, in the 1990s, particularly after 1998, as the increase in the AMO slowed, the PDO was in either a positive phase but exhibited a decreasing trend or a negative phase, the MEI and SR decreased, the WS, AP and RH decreased/increased, with subsequent changes in trends, and warming hiatuses occurred. The sensitivities of the responses of the T_min to changes in the three types of influencing factors were the highest, followed by those of the T_ave and T_max. The effects of various influencing factors on the three kinds of temperature change and warming hiatus have strong spatial and temporal differences. As a result, there was a strong spatial difference in the year of the abrupt temperature change and the warming hiatus.
机译：确定突然温度变化/升温的响应/升温的流离失所对其影响因素的变化可以提供调查其机制的参考。本研究，使用Mann-Kendall测试，基于数据（包括平均最小温度（T_min），平均温度（T_AVE）和平均最高温度（T_mix），在中国北部的357个气象站及其周围地区。作为大空间尺度数据（例如大西洋多视野振荡（AMO），全球辐射迫使CO_2（RF_CO2）和年度温室气体（RF_AGG）的辐射强制）在1951 - 2016年期间，突然温度变化的特点/变暖性质和对其影响因素的响应具有定性和定量确定。获得了以下结果。总体而言，从20世纪70年代后期到20世纪90年代，随着RF_AGG的持续增加，太平洋二数振荡（PDO）仍然处于正阶段，AMO和总太阳辐射（SR）不断增加，多元el Nino Southern振荡（ENSO）索引（MEI）突然改变，每个区域的风速（WS），大气压（AP）和相对湿度（RH）连续下降/增加，其趋势随后改变，三个温度指标中的突然变化（即T_min）在1977-2004期间，每个区域发生，t_ave和t_max）。同样，在20世纪90年代，特别是在1998年之后，随着AMO的增加放缓，PDO在阳性阶段，但表现出降低趋势或负阶段，MEI和SR减少，WS，AP和RH减少/随着趋势的后续变化以及变暖的时断，增加了增加。 T_min对三种类型影响因子的变化的敏感性最高，其次是T_AVE和T_MAX。各种影响因素对三种温度变化和变暖的中断的影响具有强烈的空间和时间差异。结果，突然温度变化和温暖的中断存在强烈的空间差异。

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  • 来源
    《Oceanographic Literature Review》 |2020年第10期|2121-2121|共1页
  • 作者

    L. Liang; L. Ma; Q. Feng;

  • 作者单位

    College of Water Conservancy and Civil Engineering College Inner Mongolia Agricultural University Hohhot China;

    College of Water Conservancy and Civil Engineering College Inner Mongolia Agricultural University Hohhot China;

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