文章摘要
李媛1,张泽铭1,高广强1,丛春华2,李瑞芬1.台风环流对远距离暴雨水汽输送影响研究[J].海洋气象学报,2017,37(1):111-117
台风环流对远距离暴雨水汽输送影响研究
Impacts of typhoon circulation on the water vapor transportation of remote precipitation
  
DOI:10.19513/j.cnki.issn2096-3599.2017.01.013
中文关键词: 台风  水汽  暴雨  数值模拟
英文关键词: typhoon  water vapor  rainstorm  numerical simulation
基金项目:山东省自然科学基金项目(ZR2013DQ009);山东省气象局青年科研基金项目(2016SDQN16)
作者单位
李媛1,张泽铭1,高广强1,丛春华2,李瑞芬1 1.济宁市气象局山东 济宁 2720002.山东省气象台山东 济南 250031 
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中文摘要:
      利用NCEP再分析资料,结合WRF模式对2008年7月17—19日发生在山东省的台风远距离暴雨水汽输送过程进行分析。结果表明:台风环流不仅有利于低纬度西太平洋水汽输送到山东内陆地区,而且迫使来自孟加拉湾的气流强度和方向发生变化,进而对远距离降水强度和持续时间产生重大影响;台风环流对鲁东南地区的水汽贡献远大于鲁西南地区,移除台风环流能间接地增强鲁西南地区的水汽供应;台风环流使远距离降水区水汽辐合范围集中,辐合强度增强,从而增强降水强度。
英文摘要:
      By using NCEP reanalysis data and WRF model, the water vapor transport process of long-range typhoon rainstorm was studied with a case in Shandong province during 17-19 July 2008. The results show that the typhoon circulation not only provides favorable conditions for water vapor transportation from the Western Pacific Ocean to Shandong inland area, but also affects the intensity and time duration of the long-range precipitation by changing the intensity and direction of the airflow from the Bay of Bengal. The contribution of water vapor from typhoon to the southeastern Shandong is much greater than that to the southwestern Shandong. Therefore, removal of typhoon circulation can indirectly enhance the water vapor supply to the southwestern Shandong. The typhoon circulation intensifies the long-range precipitation by contracting the water vapor convergence area and intensifying the convergence.
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