摘要
采用NECP/NCAR 1°×1°再分析资料,运用动力诊断方法,分析"韦森特"在南海北部近海活动时环境场特征。结果表明:中低层水汽净流入、涡度净流入、强烈的低层辐合和高层辐散及低层弱的环境风垂直切变为"韦森特"在南海北部近海发展提供了有利条件;垂直结构调整趋于对称,促进了"韦森特"加强;"韦森特"强度突增时间晚于低层垂直风切变迅速减小时间;"韦森特"强度峰值时间和低层质量净流入、水汽净流入峰值时间相同,但落后涡度净流入峰值时间18 h。
Based on the NCEP reanalysis data,the environmental field characteristics of Vicente in the northern South China Sea is analyzed using the synoptic and dynamic diagnosis method.The results showed that：the abundant water vapor transport in lower and middle levels,the strong low level convergence and upper level divergence and weak environmental vertical wind shear provide favorable dynamic and thermodynamic conditions for the development of Vicente.Meanwhile,the vertical structure symmetry is in favor of the strength of Vicente.It also found that the Vicente strength surge time was later than the low-level vertical wind shear weakened rapidly time.The strength peak time of Vicente is the same with the lower quality of net inflow peak time,but 18 hours behind the vorticity net inflow peak time.
出处
《海洋预报》
北大核心
2013年第5期44-50,共7页
Marine Forecasts
关键词
"韦森特"
南海
强度突增
Vicente
South China Sea
rapidly intensified
作者简介
邓文君（1978-）,男,工程师,主要从事海洋环境预报工作.E-mail：dwj@hyyb.gov.cn
