Impacts of the Dry Intrusion on Ji''nan Torrential Rain Occurring on 18 July 2007
干侵入对济南"7.18"暴雨的作用

By employing the NCEP/NCAR reanalysis data,the authors have analyzed the detailed characteristics of the Ji'nan torrential rain occurring on 18 July 2007,the results show both the upper-level trough and the low-level wind shear are helpful to the occurrence of the torrential rain event.The most severe dry air intrusion around Ji'nan occurs 1-2 days ahead of the torrential rain event,the dry air intrusion is advantageous to the formation and maintenance of the thick dry level.The thick dry level can lead to ...