索马里越赤道气流变化及对7~9月副高位置的影响
VARIATION FEATURES OF SOMALI CROSS-EQUATORIAL FLOW AND ITS IMPACT ON THE LOCATION OF THE SUBTROPICAL HIGH RIDGE FROM JULY TO SEPTEMBER
-
摘要: 通过分析索马里越赤道气流的变化特征及其对7~9月副高脊线位置的影响关系,结果表明:(1)在近44年来冬、夏季索马里越赤道气流强度都呈增强趋势,具有南北半球气流交换越来越激烈之事实;(2)5月索马里越赤道气流对7~9月环流影响关系最好,与副高脊线位置的影响呈正相关关系;(3)2005年诊断与实况相符。Abstract: The variation feature of the cross-equatorial flow and its impact on the ridge line position of the subtropical high were analyzed in this paper.It was shown as follows.(1) The intensity of the Somali cross-equatorial flow was increasing in winter and summer in the past 44 years and the airflow of Northern Hemisphere exchanged more and more intensively with that in Southern Hemisphere.(2) The Somali cross-equatorial flow in May had the most impact on ridge line position of the subtropical high in the typhoon season,presenting a positive correlation.(3) The diagnose was consistent with the real situation in 2005.
-
Key words:
- cross-equatorial flow /
- subtropical ridge line position /
- correlation analysis /
- diagnose
-
[1] 施宁,施丹平,严明良.夏季越赤道气流对南海季风及华东旱涝的影响[J].热带气象学报,2001,17(4):405-414. [2] 黄士松,汤明敏.夏季东半球海上越赤道气流与赤道西风、台风及副热带高压活动的联系[J].南京大学学报(气象专辑),1982:1-15. [3] 李向红,徐海明,何金海.对亚洲两支越赤道气流与华南暴雨的关系探讨[J].气象科学,2004,24(2):161-167. [4] 张韧,何金海,董兆俊,等.南亚夏季风影响西太平洋副高南北进退活动的小波包能量诊断[J].热带气象学报,2004,20(2):113-121. [5] 许金镜,温珍治,何芬.越赤道气流对副高脊线北抬至25°N的影响分析[J].气象,2006,32(8):81-87. [6] 姚愚,严华生,程建刚.主汛期(6～8月)副高各指数与中国160站降雨的关系[J].热带气象学报,2004,20(6):651-661. [7] 许金镜,温珍治,何芬,等.福建夏季台风活动异常的特征与预测分析[J].福建天文,2005,11(合刊):15-22. [8] 李修池.福建气象五十年[M].北京:气象出版社,1999:458-465. [9] 许金镜.西北太平洋海表温度与西太平洋副热带高压脊线活动关系的初步分析[J].热带气象学报,1986,2(2):282-287. [10] 许金镜.太平洋东、西部海温与副高脊线在25°N以北维持时间的对比分析[J].气象,1989,15(1):33-36. [11] 许金镜,杨林,温珍治,等.西太平洋副热带高压脊线北抬至25°N的OLR特征及诊断分析[J].气象2003,29(9):42-46. [12] 毕宝贵,章国材,李泽椿.2003年淮河洪涝与西太副高异常及成因的关系[J].热带气象学报,2004,20(5):505-514. -
点击查看大图
计量
- 文章访问数: 1073
- HTML全文浏览量: 0
- PDF下载量: 1176
- 被引次数: 0
下载:
粤公网安备 4401069904700003号