海洋预报2012，Vol.29Issue(5)：53-58,6.
舟山群岛海域一次大风过程的诊断分析
Diagnosis analysis of a strong gale in Zhoushan islands
摘要
Abstract
In this paper, a strong cold air gale process in March 2010 was analyzed. The results showed that the strong cold air gale appeared in the typical synoptic situation of the horizontal trough before the ridge of Lake Baikal. The cold air breaked out from lower levels to higher levels because the upper lever trough changed from the horizontal direction to vertical direction. The main reason of this strong gale was the pressure gradient caused by the interaction of the cold air and the intense development of depression in the East China Sea, and the strong cold temperature advection in low and middle layer. In addition, the coupling of divergence with a negative (positive) value at upper (low) level and intense momentum transportation downward, caused by the dynamic forcing descending due to the upper frontal zone passage, further increased the ground wind speed.关键词
高空横槽/冷空气大风/低压发展/动量下传Key words
horizontal trough at the upper level/ cold air gale/ depression development/ Momentum transportation downward分类
海洋科学引用本文复制引用
徐哲永,王雷,王坚侃..舟山群岛海域一次大风过程的诊断分析[J].海洋预报,2012,29(5):53-58,6.
