收稿日期: 2004-09-09
修回日期: 2004-12-16
网络出版日期: 2005-11-15
基金资助
国家自然科学基金项目(40405007,40275015);国家重点基础研究发展规划项目(2004CB418302);科技部社会公益专项(2002DIB10100)共同资助
A Diagnosis of Moist Potential Vorticity Anomaly During Meiyu Period in 2003
Received date: 2004-09-09
Revised date: 2004-12-16
Online published: 2005-11-15
邓国 , 周玉淑 , 崔晓鹏 . 2003年梅雨期湿位涡异常诊断分析[J]. 中国科学院大学学报, 2005 , 22(6) : 712 -718 . DOI: 10.7523/j.issn.2095-6134.2005.6.009
By analyzing the precipitation and largescale circumfluence during the period of Meiyu in 2003,the moist potential vorticity (MPV),including the mass forcing,is used to suggest that the intensive rainfall in torrential rain system can cause anomaly of the MPV.The data diagnoses manifest that the anomaly of the MPV and the precipitation have better accordance during the period of heavyMeiyu over Changjiang river basin and Huanghe river basin in 2003.We can forecast the possible distribution and movement direction of the torrential rain system according to the impermeability of the MPV.The anomaly induced by both heat and mass forcings in the torrential rain system will be a good dynamical tracer for tracking the torrential rain region.
Key words： Meiyu; moist potential vorticity; mass forcing
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