自然资源学报 ›› 2018, Vol. 33 ›› Issue (1): 114-126.doi: 10.11849/zrzyxb.20161067

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春季北支脊变化特征及其对中国气候的影响

张永莉1, 2, 3, 4, 范广洲3, *, 汪家楠3, 吴俞5, 王霄6, 黄先伦7, 葛非3, 龙妍妍8   

  1. 1. 中国科学院西北生态环境资源研究院,兰州 730000;
    2. 兰州大学大气科学学院,兰州 730000;
    3. 成都信息工程大学大气科学学院/高原大气与环境四川省重点实验室,成都 610225;
    4. 中国科学院大学,北京 100049;
    5. 海南省气象台,海口 570203;
    6. 河南省气象服务中心,郑州 450003;
    7. 阳江市气象局,广东 阳江 529500;
    8. 中国民用航空飞行学院,四川 广汉 618307
  • 收稿日期:2016-10-08 修回日期:2017-03-14 出版日期:2018-01-20 发布日期:2018-01-20
  • 通讯作者: 范广洲(1970- ),男,教授,博士,研究方向为气候变化及其数值模拟。E-mail: fgz@cuit.edu.cn
  • 作者简介:张永莉(1983- ),女,河南焦作人,讲师,硕士,研究方向为气候变化及数值模拟。E-mail: zhyli@cuit.edu.cn
  • 基金资助:

    国家自然科学基金项目(91537214,41275079,41305077,41405069,41505078); 四川省教育厅重点项目(16ZA0203); 成都信息工程大学中青年学术带头人科研基金(J201516,J201518); 四川气象灾害预测预警与应急管理研究中心项目(ZHYJ16-YB06)

Variation of Springtime Northern Branch Ridge and Its Impact on Climate in China

ZHANG Yong-li1, 2, 3, 4, FAN Guang-zhou3, *, WANG Jia-nan3, WU Yu5, WANG Xiao6, HUANG Xian-lun7, GE Fei3, LONG Yan-yan8   

  1. 1. Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou 730000, China;
    2. College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China;
    3. College of Atmospheric Sciences, Chengdu University of Information Technology/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu 610225, China;
    4. University of Chinese Academy of Sciences, Beijing 100049, China;
    5. Hainan Meteorological Observatory, Haikou 570203, China;
    6. Henan Service Center of Meteorological, Zhengzhou 450003, China;
    7. Yangjiang Meteorological Bureau, Yangjiang 529500, China;
    8. Civil Aviation Flight University of China, Guanghan 618307, China
  • Received:2016-10-08 Revised:2017-03-14 Online:2018-01-20 Published:2018-01-20
  • Supported by:

    National Natural Science Foundation of China, No. 91537214, 41275079, 41305077, 41405069 and 41505078; The Key Foundation of Eduction Deparment of Sichuan Province, No. 16ZA0203; The Scientific Research Foundation of CUIT, No. J201516 and J201518; Meteorological Disaster Forecasting Warning and Emergency Management Research Center of Sichuan Province, No. ZHYJ16-YB06.

摘要:

论文利用NCEP/NCAR再分析资料和中国160个站月降水量和气温资料,通过小波、相关分析等方法,讨论了春季北支脊的变化特征及其对中国同期降水和气温的影响。结果表明:春季北支脊缓慢增强,存在2~3 a和准6 a的周期;纬向位置略向东移,具有准3 a和12 a的周期。春季北支脊偏强(弱),黄河流域到江南地区的降水量偏少(多),东北、西南和华南地区的降水量偏多(少);春季北支脊纬向位置偏东(西),中国北方大部分地区的降水量偏多(少),西南和江南大部分地区的降水量偏少(多);中国大部分地区的升(降)温显著。当春季北支脊纬向位置显著偏东(西)时,且强度偏强(弱),淮河流域降水偏少(多),东北、西南和华南地区的降水偏多(少),中国大部分地区气温明显偏高(低)。通过对相应的环流和物理量场的分析,能较合理地解释中国春季气候异常的原因,对中国短期气候预测有一定帮助。

关键词: 春季北支脊, 大气环流, 降水, 年际和年代际变化, 气温

Abstract:

The variation of springtime northern branch ridge (SNBR) and its impact on precipitation and temperature in China are analyzed using NCEP/NCAR reanalysis data and the observational precipitation and temperature data at the 160 stations of China, with the methods of wavelet analysis, correlation analysis, etc. The results indicate that SNBR is gradually strengthening with periods of 2-3 years and quasi-6 years. Its position is moving eastward slightly with quasi-periods of 3 years and 12 years. When the SNBR is stronger (weaker), the spring precipitation from the Yellow River basin to south of the Yangtze River decreases (increases) obviously, while the spring precipitation rises (drops) in Northeast, Southwest and South China. When SNBR is eastward (westward), the spring pecipitation increases (decreases) in most part of the northern China and drops (rises) in most part of the southwest and southeast of China. Meanwhile, the springtime mean temperature in most part of China is higher (lower) than normal. When SNBR locates more westward (eastward), the precipitation decreases (increases) in the Huaihe River Basin, and rises (drops) in Northeast, Southwest and South China when the SNBR is strong (weak). The springtime mean temperature in most part of China is higher (lower) than normal. The relationship between the SNBR and the variation of the circulation can explain the climate change in China and improve the short-term climate forecasting.

Key words: atmospheric circulation, interannual and interdecadal variability, precipitation, springtime northern branch ridge, temperature

中图分类号: 

  • P467