秦皇岛地区海陆风特征及其影响

利用本地风的观测资料,分析、总结了秦皇岛地区风的特点。结果表明,秦皇岛因受海陆地形的影响,风的变化具有海陆风的特征,在空间分布上,海陆风只影响到昌黎、抚宁和市区,达不到卢龙、青龙,在时间分布上,海风以昌黎(10点)出现最早,抚宁(12点)次之,市区(14点)最晚,陆风同样以昌黎(20点)出现最早,抚宁(23点)次之,市区(次日2点)最晚。同时,海陆风对秦皇岛地区气温的影响尤为明显,受海风影响,秦皇岛市的夏季不十分炎热,日最高气温比同纬度的内陆地区低很多,成为著名的避暑胜地。另外,由于夏季受海风影响较大,海风登陆带来充沛的水汽,导致7月是秦皇岛地区大雾天气全年最多的月份。

Characteristics and Influence of Land and Sea Breeze in Qinhuangdao Area

This article analyzed and summarized the characteristics of the local wind observation data of Qinhuangdao region. The results show that the changes of wind have the characteristics of land and sea breeze because Qinhuangdao area is dominated by the shape of sea and land. In the spatial distribution, the land and sea breeze only affect Changli, Funing and downtown area, it can not reaches Lulong, Qinglong. In time distribution, the land and sea breeze firstly affects Changli at 10 o＇clock, then Funing at 12 o＇clock, downtown is at the last 14 o＇clock. The same way as land and sea breeze, the land wind firstly reaches Changli at 20 o＇clock, Funing 23 o＇clock, and downtown 2 o＇clock next day. Meanwhile, the land and sea breeze affects the temperature in Qinhuangdao area quite strongly. By sea wind effects, Qinhuangdao city is not very hot during the summer, the highest temperature is significant lower than the inland area at same latitude, such as Beijing, and being one of the most famous summer resorts. Moreover, because of the huge affection of summer sea wind, the sea wind reach the land and bring abundant water vapor, and causes that July has most heavy fog days compared with the other months in Qinhnangdao area.