亚洲季风区感热凝结潜热对副高带季节演变的影响
EFFECTS OF SENSIBLE HEATING FLUX AND LATENT HEATING ON SEASONAL EVOLUTION OF THE SUBTROPICAL HIGH BELT OVER ASIA MONSOON REGION
-
摘要: 利用1958~1998年NCEP/NCAR的逐日再分析资料,探讨了亚洲夏季风建立期间感热、凝结潜热和副高带季节演变的气候特征,并重点分析它们相互耦合的特征。结果表明:亚洲季风区的地表感热、凝结潜热影响印缅槽生成和阿拉伯副高西移的机制是相似的,5月初,印度半岛较强的感热通量和中南半岛较强的凝结潜热共同影响副高带的断裂及印缅槽的生成,5月底~6月上旬阿拉伯半岛较大的感热通量和印度半岛西侧较强的凝结潜热有利于阿拉伯副高的西移。Abstract: Multi-year NCEP/NCAR reanalysis data were used to analyze the effects of the sensible heating flux and the latent heating on the seasonal evolution of the subtropical high belt during the onset-period of the Asia summer monsoon.The results show that the effects of the sensible heating flux and the latent heating on the establishment of India-Burma trough and the westward retreat of Arabia subtropical high are quite similar.The intensive sensible heating flux of the Indian peninsula and latent heating over the Indo-China peninsula is favorable to the establishment of India-Burma trough at the beginning of May,and the intensive sensible heating of Arabia and latent heating over the Indian peninsula is favorable to the westward retreat of Arabia subtropical high from the end of May to early June.
-
[1] HE Jinhai,ZHU Qiangen,MARAKAMI M.TBB data-revealed features of Asia-Australian Monsoon seasonal transition and Asia Summer monsoonestablishment[J].J Trop Meteor,1996,12(1):34-42. [2] 吴国雄,刘屹岷,刘平.空间非均匀非绝热加热对副热带高压形成和变异的影响I:尺度分析[J].气象学报,1999,57(3):257-263. [3] 刘屹岷,刘辉,刘平,等.空间非均匀非绝热加热对副热带高压形成和变异的影响Ⅱ:陆面感热加热与东太平洋北美副高[J].气象学报,1999,57(4):385-396. [4] 刘屹岷,吴国雄,刘辉,等.空间非均匀非绝热加热对副热带高压形成和变异的影响Ⅲ:凝结潜热与南亚高压及西太平洋副高[J].气象学报,1999,57(5):525-537. [5] 吴国雄,丑纪范,刘屹岷,等.副热带高压形成和变异的动力学问题[M].北京:科学出版社,2002:1-433. [6] 徐海明,何金海,温敏,等.中南半岛影响南海夏季风建立和维持的数值研究[J].大气科学,2002,26(3):330-342. [7] 徐海明,何金海,董敏,等.印度半岛对亚洲夏季风进程影响的数值研究[J].热带气象学报,2001,17(2):117-124. [8] 何金海,温敏,施晓辉,等.南海夏季风建立期间副高带断裂和东撤及其可能机制[J].南京大学学报(自然科学),2002,38(3):318-330. [9] 曾庆存,张邦林.论大气环流的季节划分和季节突变Ⅰ:概念和方法[J].大气科学,1992,16(5):641-647.
点击查看大图
计量
- 文章访问数: 980
- HTML全文浏览量: 0
- PDF下载量: 1025
- 被引次数: 0