学术
2006年8月青岛国际帆船赛期间海陆风特征及三维结构分析
盛春岩[1] 王建林[2] 刁秀广[1]
[1]山东省气象台,山东济南250031 [2]青岛市气象局,山东青岛266003
摘 要:
利用2006年青岛国际帆船赛期间（2006年8月9～31日）的观测资料，对赛场附近的海陆风特征进行了分析，并根据激光雷达和多普勒雷达资料分析了海风的三维结构，结果发现：（1）青岛国际帆船赛期间海陆风发生的频率非常高；陆风时间一般在03：00～09：00时；在副高控制下，赛场全天风速较弱，一般在2．5m·s^-1以下，风向也不集中，陆风多为东北北方向，海风的方向则以东一东南风为主。海风形成的时间较迟，而副高边缘的海陆风较明显，海风形成时间相对较早。海风形成后，风速一般在3～4m·s^-1，为一天中风速最大的时段；风向也较集中，陆风以北一西北北风向为主，海风以东南风为主；（2）海陆风消亡时，风速往往迅速减小，海陆风越强，风速减小得越厉害。（3）海陆温差不是决定海风强弱的唯一因子。（4）海风在垂直方向一般比较浅薄，多在300m以下。发展强盛的海风垂直高度可达1．5km左右，向内陆推进100km左右。多普勒雷达风廓线产品却可以较好地反映赛场附近海风风向的转变和垂直结构。[著者文摘]
文章出处:
《中国海洋大学学报》-2007年37卷4期 -609-614页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1672-5174（2007）04-609-06
The Features and Three-Dimensional Structures of Sea and Land Breeze During the Qingdao 2006 International Regatta
SHENG Chun-Yan, WANG Jian-Lin, DIAO Xiu-Guang （1. Shandong Provincial Meteorological Observatory, Jinan 250031, China; 2. Qingdao Municipal Bureau of Meteorological, Qingdao 266003, China）
Abstract:
With the in situ data collected during 2006 Qingdao International Regatta, the features and threedimensional structures of the sea and land breeze of Qingdao have been analyzed, the results show that, （1） the sea and land breeze often occurs during this period of the year. The land breeze usually occurs during 3 to 9 a.m. Under the control of the 500 hPa subtropical high pressure system in the Western Pacific Ocean, the wind speed in this region is very small and usually below 2.5 m·s^-1, and the wind direction is changeable. The direction of the land breeze is NNE and that of the sea breeze is E to SE. While for the weather at the edge of the 500 hPa subtropical high pressure system, the sea and land breeze is slightly stronger. The sea breeze usually forms earlier and the wind speed is larger at around 3-4 m·s^-1, which is the strongest in the whole day. In this situation, the land wind direction is usually NNW and the sea wind direction SE. （2） the wind speed usually decreases rapidly at the stage when the sea breeze is dying out. （3） the sea-land temperature difference is not the only factor that determines the strength of the sea and land breeze; and （4） the sea breeze is mostly very shallow in the vertical direction at no higher than 300 meters height. Occasionally the Sea breeze can be very strong and can develop to around 1.5 km in height and push in land for about 100 kin. The CINRAD Doppler Radar VAD wind profiler can reflect the change of sea breeze direction satisfactorily.[著者文摘]
Key words:
International regatta; sea and land breeze feature; three-dimensional structure
基金资助:
中国气象局2007年多轨道业务建设项目;国家级海洋气象预报预警业务系统资助
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