邢佩, 杨若子, 杜吴鹏, 轩春怡, 党冰, 熊飞麟. 1961—2017年华北地区温度相关高影响天气气候事件变化特征分析[J]. 沙漠与绿洲气象, 2023, 17(4): 61-68.
引用本文: 邢佩, 杨若子, 杜吴鹏, 轩春怡, 党冰, 熊飞麟. 1961—2017年华北地区温度相关高影响天气气候事件变化特征分析[J]. 沙漠与绿洲气象, 2023, 17(4): 61-68.
XING Pei, YANG Ruozi, DU Wupeng, XUAN Chunyi, DANG Bing, XIONG Feilin. Characteristics of Temperature-related High-impact Weather and Climate Events in North China from 1961 to 2017[J]. Desert and Oasis Meteorology, 2023, 17(4): 61-68.
Citation: XING Pei, YANG Ruozi, DU Wupeng, XUAN Chunyi, DANG Bing, XIONG Feilin. Characteristics of Temperature-related High-impact Weather and Climate Events in North China from 1961 to 2017[J]. Desert and Oasis Meteorology, 2023, 17(4): 61-68.

1961—2017年华北地区温度相关高影响天气气候事件变化特征分析

Characteristics of Temperature-related High-impact Weather and Climate Events in North China from 1961 to 2017

  • 摘要: 利用华北地区85个气象站1961—2017年地面均一化日值资料,统计分析了华北地区年平均最高(低)气温、极端最低气温、高温热浪以及寒潮、霜冻等高影响天气气候事件的时空分布特征。结果表明:(1)华北地区年平均最低气温升温速率(0.45℃/10 a)高于最高气温升温速率(0.27℃/10 a),气温日较差以0.18℃/10 a的速率减小。最高气温在内蒙古中部及北部部分地区和山西中南部地区的增加趋势相对更大,最低气温在内蒙古大部、山西东北部、河北中部和京津地区的增温更明显。(2)年平均高温热浪日数呈明显增加的趋势(0.44 d/10 a),20世纪90年代之后尤为明显。高温热浪日数的大值区集中在华北南部和西部;除河北南部部分地区趋势值为负外,华北大部分地区高温热浪日数呈增加趋势。(3)平均年极端最低气温呈显著升高趋势(0.53℃/10 a),冷夜天数显著下降(-4.7 d/10 a),暖夜天数显著上升(3.8 d/10 a),冷日天数呈下降趋势(-2.4 d/10 a)。年平均寒潮频次显著减少(-0.5次/10 a),呈“北部多、南部少”的空间分布。平均霜冻日数以3.5 d/10 a的速率减少,20世纪80年代之后尤为明显;除山西西北部和内蒙古东南部个别地区外,华北大部分地区霜冻日数呈减少趋势。(4)不同分区的对比结果显示,天津对气候暖化响应最敏感,其次是内蒙古西部;山西最不敏感(尤其是对低温相关要素指标),其次是河北(尤其是对高温相关要素指标)。研究结果有助于进一步认识华北地区温度相关高影响天气气候事件的区域性特征。

     

    Abstract: The surface homogenization daily data from 85 meteorological stations was utilized to analyze the spatial and temporal distribution characteristics of annual average maximum(minimum)temperature,extreme minimum temperature,heat wave,cold wave and frost in north China from 1961to 2017.The results showed that:(1)The increase rate(0.45 ℃/10 a)of the annual average minimum temperature was higher than that the maximum temperature(0.27 ℃/10 a),and the daily temperature range decreased at a rate of 0.18 ℃/10 a.The positive trend of maximum temperature in central and northern parts of Inner Mongolia and south-central Shanxi was relatively large.The minimum temperature increased more significantly in most of Inner Mongolia,northeastern Shanxi,central Hebei and Beijing-Tianjin areas.(2)The annual average days of heat wave showed a significant increasing trend(0.44 d/10 a),especially after the 1990s.The large values of heat wave days were concentrated in southern and western north China.The number of heat wave days in most parts of north China displayed an increasing trend,except for the negative trend in parts of southern Hebei.(3)The average annual extreme minimum temperature showed a significant positive trend(0.53 ℃/10 a),the average number of cold nights decreased significantly(-4.7 d/10 a),the warm nights increased significantly(3.8 d/10 a),and the cold days decreased(-2.4 d/10 a).The annual average cold wave frequency decreased significantly(-0.5 times/10 a)with a spatial distribution of “more in the north and less in the south”.The average number of frost days decreased at a rate of 3.5 d/10 a,especially after the1980s.Except for some areas in northwestern Shanxi and southeastern Inner Mongolia,the frost days in most parts of north China showed a negative trend.(4)The comparison results of different sub-regions showed that Tianjin was the most sensitive to climate warming,followed by western Inner Mongolia.Shanxi was the least sensitive(especially to low temperature related indicators),followed by Hebei(especially to high temperature related indicators).The results were helpful to further understand the regional characteristics of temperature-related high-impact weather and climate events in north China.

     

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