摘要
利用2008年11月1日的高空、地面气象资料分析了辽宁省营口地区的渤海北部海面由西南风5级转偏北风7级的过程。结果表明:11月1日8:00地面的南高北低的形势场和较大的气压梯度配置是11月1日中午营口地区的渤海北部海面(团山测站)产生西南风5级、瞬时最大风速达13.9 m/s的7级阵风的主要天气形势;11月1日傍晚营口地区处于地面冷锋东移南压过境冷平流冲击处,冲击带来的强烈大风以及气压梯度异常递增导致在20:00前后营口地区的渤海北部海面出现7级偏北大风;这是典型的渤海北大风个例。
The process of the southwest wind of 5th grade to the northern gale of 7th grade on November 1^th ,2008 in the Yingkou region of noahem Bohai Sea were analyzed, based on the high-altitude and ground meteorological data. The main situation of causing the louder southwest wind , which the wind reaches 5th grade and the instantaneous gale reaches 7th grade which achieves 13.9 m/s （7th grade of the wind standard is 13.9 - 17.1 m/s）, is the pat- tern of low in north and high in south of low-pressure gradient on the ground and the greater pressure gradient at 8：00 in Yingkou region of the northern Bohai Sea. The reason of the Yingkou region of anthem Bohai Sea off the loud anrthem wind next to the night on the November 1^th is the cold stratospheric impact on the ground by the cold front eastward shift of the South pressure and the abnormal increasing in the pressure gradient; It is a typical noah wind case study of Bohai Sea.
出处
《安徽农业科学》
CAS
北大核心
2009年第15期6894-6895,共2页
Journal of Anhui Agricultural Sciences
关键词
渤海北部
偏北大风
分析
Bohai Sea in northern
North wind
Analysis
