海州湾不同走向海岸的海陆风异同分析  

Analysis on land-sea breeze feature in coastal area of Haizhou Bay in Lianyungang

作　　者：姜有山 王桂臣[2] 李进喜[3] 张榕[2] 张红华[2] 

机构地区：[1]南京市气象局,南京210009 [2]连云港市气象局,江苏连云港222006 [3]江苏省气象台,南京210008

出　　处：《气象科学》2011年第6期770-776,共7页Journal of the Meteorological Sciences

基　　金：江苏省连云港市科学技术局项目(SH0719)

摘　　要：通过对海州湾沿岸3座梯度测风塔和19座自动气象站一年的逐日24 h自记风资料的统计,得到海州湾沿岸的海陆风,在此基础上提出了海陆风"净值"的概念。结合海陆风"净值"分析海州湾沿岸的海陆风环流特征发现:海州湾沿岸南北两段的海陆风具有明显的差异,南北走向的海岸海陆风比西北—东南走向海岸的弱,且转换时间迟;并粗略地估计了海风向陆地内的水平伸展宽度在45 km左右,夏季海风的垂直伸展高度可达625 m或以上。Abstract Using the daily 24-h wind datasets, which are derived from 3 gradient anemometer towers and 19 automatic meteorological stations, we investigated the land-sea breeze in the coastwise area of Haizhou Bay and proposed the concept of net value of land-sea breeze. Combined with the net value anal- ysis of land-sea breeze circulation in the coast, it was demonstrated that the land-sea breeze in the southand north coasts exhibited significant differences： the land-sea breeze in the north-south coast was weaker than that in the northwest-southeast coast, and it had a later conversion time. The horizontal extension of sea-breeze towards land area was about 45 km. In summer, the vertical extension height could reach 625 m or above.

关 键 词：海陆风 统计特征 净值 不同海岸走向 

分 类 号：P463.1[天文地球—大气科学及气象学]