%0 Journal Article %A MA Liangchen %A SUN Li %A WANG Ning %T Analysis of Water Vapor Transport Characteristics of Typical Rainstorm Cases in Northeast China %D %R 10.7522/j.issn.1000-0534.2016.00078 %J Plateau Meteorology %P 960-970 %V 36 %N 4 %X Using the NCEP GDAS (1°×1°) data and the airflow trajectory model based on the Lagrangian method (HYSPLIT_4.9), the cold vortex rainstorm case from June 27 to July 1 in 2009, the shear rainstorm case from August 19 to 22 in 2010, the cyclone rainstorm case from August 14 to 17 in 2013 and the typhoon rainstorm case from August 27 to 30 in 2012 were selected in Northeast China. The variation features of the water vapor transport passages and the contribution rate of water vapor from different sources of these four rainstorms were simulating calculated. Results show that there are basically two water vapor transport channels in the four rainstorm cases, one comes from South China Sea or the western Pacific, the other is the northwest flow. The characteristics of typical rainstorms in different weather systems are different. In the case of cold vortex, 42.1% of the water vapor contribution comes from the western Pacific and the South China Sea, and the water vapor near the Okhotsk Sea is also supplemented. The northwest airflow and the sea water vapor account for about 50%. The heavy rain of shear is similar with cyclone. The West Pacific and South China Sea passages of water vapor transportation account for the main part and the decreasing proportion of water vapor is from northwest. In the case of shear rainstorm, a small percentage comes from local areas. In the typhoon rainstorm, the main source of water vapor is from North Pacific, Yellow Sea and Bohai Sea. The magnitude and distribution of precipitation are closely related to the contribution rate of sea water vapor. %U http://www.gyqx.ac.cn/EN/10.7522/j.issn.1000-0534.2016.00078