辽宁区域性冷空气多时间尺度变化特征及影响因子

doi:10.7522/j.issn.1000-0240.2016.0041

摘要/Abstract

摘要： 使用辽宁省58个气象观测站1961年9月-2015年4月气温资料、国家气候中心气候监测指数和NCEP分析资料，分析了辽宁区域性冷空气的多时间尺度变化特征及影响因子.结果表明：辽宁区域性强冷空气、寒潮年总频次都呈下降趋势，而中等强度冷空气年总频次呈上升趋势，冷空气强度有减弱的趋势.区域性冷空气过程年总频次存在11a、6a和3a的变化周期，并且1964年发生突变.秋季冷空气活动最频繁，冬季冷空气强度最强.区域性冷空气初日多年平均值是9月23日，终日多年平均是4月5日，初、终日都出现提前趋势.北半球极涡面积指数与辽宁寒潮频次呈明显正相关关系，寒潮偏多月份极涡较气候平均位置偏南、50°N附近70°～180°E之间纬向风明显偏大，是辽宁寒潮增多的影响因子.

关键词: 冷空气频次, 多时间尺度变化, 周期, 突变, 影响因子

Abstract: Based on the observational data of temperature and climate monitoring index from the national climate center and NCEP, the multiple time scale variations and impact factors of regional cold air in Liaoning Province are analyzed. The analysis shows that the frequencies of regional strong cold air and cold wave have significantly decreased, but the frequency of moderate intensity cold air has increased. Cold air strength has weaken. There are changing periods of 11-year, 6-year and 3-year for regional cold air. The frequency of the regional cold air had an abrupt change in 1964. The season with most frequent cold air activity is autumn and the season with strongest cold air is winter. The average first regional cold air date is on September 23 and the last date is on April 5, and the first and the last dates are going to shift to an earlier date. The polar vortex area index in the northern hemisphere has a significant positive correlation with the frequency of the regional cold wave. In more cold wave months, the polar vortex will shift south as compared with that in normal month, and the zonal wind between 70°-180° E and near 50° N is larger than normal. The polar vortex and the zonal wind are the pronounced factors of increasing regional cold air in Liaoning Province.

Key words: cold air's frequency, multiple time scales variation, period, abrupt change, impact factors

中图分类号:

P426.61+4

阎琦, 田莉, 李爽, 崔锦. 辽宁区域性冷空气多时间尺度变化特征及影响因子[J]. 冰川冻土, 2016, 38(2): 379-387.

YAN Qi, TIAN Li, LI Shuang, CUI Jin. Multiple-time scale variations and impact factors of regional cold air in Liaoning Province[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2016, 38(2): 379-387.

参考文献

[1] Zhuo Qiangen, Lin Jinrui, Shou Shaowen, et al. Principle and methods of synoptic meteorology[M]. Beijing:China Meteorological Press, 1992:377-418.[朱乾根, 林锦瑞, 寿绍文, 等. 天气学原理和方法[M]. 北京:气象出版社, 2007:266-319.
[2] Li Xianzhi. A study of cold waves in East Asia[M]//Scientific Works in Modern China:Meteorology(1919-1949). Beijing:Science Press, 1955:35-117.[李宪之. 东亚寒潮侵袭的研究[M]//中国近代科学论著选刊:气象学(1919-1949). 北京:科学出版社, 1955:35-117].
[3] Tao Shiyan. A study of activities of cold airs in East Asian winter[Z]//Chinese Meteorological Administration. Handbook of Short Term Forecast, 1957.[陶诗言. 东亚冬季冷空气活动的研究[Z]//中央气象局. 短期预报手册, 1957].
[4] Ding Yihui. Advanced synoptic meteorology[M]. Beijing:China Meteorological Press, 1990:328-330.[丁一汇, 2000. 高等天气学[M]. 北京:气象出版社, 1990:328-330].
[5] Ding Yihui, Wang Zunya, He Jinihai, et al. An updating analysis is of the climate change in China in recent 50 years[J]. Acta Meterologica Sinica, 2004, 62(2):228-236.[丁一汇, 王遵娅, 何金海, 等. 近50年来中国气候变化特征的再分析[J].气象学报, 2004, 62(2):228-236].
[6] Zhang Peizhong, Chen Guangming. A statistical analysis of the cold wave high which influences on China[J]. Acta Meterologica Sinica, 1999, 57(4):493-501.[张培忠, 陈光明. 影响中国寒潮冷高压的统计研究[J]. 气象学报, 1999, 57(4):493-501].
[7] Wang Zunya, Ding Yihui. Climate change of the cold wave frequency of China in the last 53[J]. Chinese Journal of Atmospheric Sciences, 2006, 30(6):14-22.[王遵娅, 丁一汇. 近53年中国寒潮的变化特征及其可能原因[J]. 大气科学, 2006, 30(6):14-22].
[8] Qian Weihong, Zhang Weiwei. Changes in cold wave events and warm winter in China during the last 46 years[J]. Chinese Journal of Atmospheric Sciences, 2007, 31(6):1266-1278.[钱维宏, 张玮玮. 我国近46年来的寒潮时空变化与冬季增暖[J].大气科学, 2007, 31(6):1266-1278]
[9] Li Feng, Jiao Meiyan, Ding Yihui, et al. Climate change of Arctic atmospheric circulation in last 30 years and its effect on strong cold events in China[J]. Plateau Meteorology, 2006, 25(2):209-219.[李峰, 矫梅燕, 丁一汇, 等. 北极区近30年环流的变化及对中国强冷事件的影响[J]. 高原气象, 2006, 25(2):209-219].
[10] Xu Aihua, Qiao Lin, Zhan Fengxing, et al. Diagnosis of a cold wave weather event in March 2005[J]. Meteorological Monthly, 2006, 32(3):49-55.[许爱华, 乔林, 詹丰兴, 等. 2005年3月一次寒潮天气过程的诊断分析[J]. 气象, 2006, 32(3):49-55].
[11] Gu Xiujie, Li Zhou, Lu Tan, et al. Cause of formation of cold wave process on April 11-122006[J]. Meteorological and Environmental Sciences, 2007, 30(B09):19-21.[谷秀杰, 李周, 鲁坦, 等. 2006年4月11-12日寒潮天气成因[J]. 气象与环境科学, 2007, 30(B09):19-21].
[12] Ye Chengzhi, Wu Xianyun, Huang Xiaoyu. A synoptic analysis of the unprecedented sever event of the convective cryogenic freezing rain in Hunan Province[J]. Acta Meteorologica Sinica, 2009, 67(3):488-500.[叶成志, 吴贤云, 黄小玉. 湖南省历史罕见的一次低温雨雪冰冻灾害天气分析[J]. 气象学报, 2009, 67(3):488-500].
[13] Li Xianghong, Liao Muke, Xiong Yingming, et al. Comparative analysis of three cold wave processes in Guangxi[J]. J Meteor Sci, 2011, 31(2):228-235.[李向红, 廖幕科, 熊英明, 等. 影响广西的三次寒潮过程对比研究[J]. 气象科学, 2011, 31(2):228-235].
[14] Tian Xiuxia, Shou Shaowen. Analysis of isentropic vortices for two cold wave processes in Dec. 2008[J]. J Meteor Sci, 2013, 33(1):102-108.[田秀霞, 寿绍文. 2008年12月两次强寒潮过程的等熵位涡分析[J]. 气象科学, 2013, 33(1):102-108].
[15] Wu Hongyu, Du Yaodong. Climatic characteristics of cold waves in South China in the period 1961-2008[J]. Advances in Climate Change Research, 2010, 6(3):192-197.[伍红雨, 杜尧东. 1961-2008年华南区域寒潮变化的气候特征[J]. 气候变化研究进展, 2010, 6(3):192-197].
[16] Lin Ailan, Wu Shangsen. The characteristics of cold wave action in Guangdong province during recent 44 years[J]. Journal of Tropical Meteorology, 1998, 14(4):337-343.[林爱兰, 吴尚森. 近40多年广东省的寒潮活动[J]. 热带气象学报, 1998, 14(4):337-343].
[17] Bai Songzhu, Boernan Habudula, Xie Xiuqing. The variation characteristics of cold wave in Altay Prefecture under climate warming background[J]. Journal of Glaciology and Geocryology, 2015, 37(2):387-394.[白松竹, 博尔楠·哈不都拉, 谢秀琴. 气候变暖背景下阿勒泰地区寒潮活动变化特征[J]. 冰川冻土, 2015, 37(2):387-394].
[18] Wang Mingjie, Zhou Yongji, Zou Liyao. Characteristics and forecast of cold waves in Heilongjiang Province[J]. Heilongjiang Meteorology, 2000(3):29-32.[王明洁, 周永吉, 邹立尧. 黑龙江省寒潮天气及预报[J]. 黑龙江气象, 2000(3):29-32].
[19] Yan Qi, Lu Jinglong, Tian Li, et al. Spatial and temporal distributions of cold wave from 1971 to 2011 in Liaoning Province[J]. Journal of Meteorology and Environment, 2014, 30(4):63-69.[阎琦, 陆井龙, 田莉, 等. 1971-2011年辽宁寒潮时空分布特征[J]. 气象与环境学报2014, 30(4):63-69].
[20] Zhao Chunyu, Yan Xiaoyu, Li Dongliang, et al. The variation of snow cover and its relationship to air temperature and precipitation in Liaoning Province during 1961-2007[J]. Journal of Glaciology and Geocryology, 2010, 32(3):461-468.[赵春雨, 严晓瑜, 李栋梁, 等. 1961-2007年辽宁省积雪变化特征及其与温度、降水的关系[J]. 冰川冻土, 2010, 32(3):462-468].
[21] Wei Fengying. Modern climatic statistical diagnosis and prediction technology[M]. Beijing:China Meteorological Press, 1999.[魏凤英. 现代气候统计诊断预测技术[M]. 北京:气象出版社, 1999].