海南岛海风演变特征的观测分析

发布时间：2018-05-06 14:19

  本文选题：海风 + 演变特征　； 参考：《气象科学》2016年02期

【摘要】：本文利用2012年海南岛19个常规气象站、5个海岛站的逐时资料以及海口站的探空资料,对海南岛海风的时空演变特征及在不同天气条件下海风发展的特征进行了统计分析,结果表明:2012年全年海南岛的海风多发生于春、秋季,频率分别为40%和33%,冬季最少(约为19%),尤其是一月,大部分站点均不足10%。夏季海风出现时刻较早;南部沿海海风结束时间晚于北部沿海;冬季海风开始得较晚,南部海风结束时间早于北部沿海。海风平均持续时间约为10 h。沿海站的海风风速主要集中在3~6 m·s~(-1),且最大风速值出现在春季,除琼山、海口站外,最大海风强度多出现于春夏季。内陆站中部山区附近海风出现频率较高、开始时刻较早、持续时间较长、强度也较大。海风向内陆的传播距离至少为70 km;海风易发生在阴天,其次为多云天气,少云日的海风最少。
[Abstract]:Based on the hourly data of 19 conventional meteorological stations and 5 island stations in Hainan Island in 2012 and the sounding data of Haikou station, this paper makes a statistical analysis of the spatial and temporal evolution characteristics of the sea breeze in Hainan Island and the characteristics of the sea breeze development under different weather conditions. The results show that in the whole year of 2012, the sea winds in Hainan Island mostly occur in spring and autumn, with the frequency of 40% and 33% respectively, and the least in winter (about 19%, especially in January), most of the stations are less than 10%. The onset time of summer monsoon is earlier; the end time of southern coastal monsoon is later than that of northern coast; the winter monsoon begins later and the southern sea breeze ends earlier than that of northern coast. The mean duration of sea breeze is about 10 hours. The wind speed of coastal stations is mainly at 3 ~ 6 m ~ (-1) m ~ (-1), and the maximum wind speed appears in spring. Except Qiongshan and Haikou stations, the maximum wind intensity occurs in spring and summer. In the middle of the inland station, the sea wind appears more frequently, the beginning time is earlier, the lasting time is longer, and the intensity is larger. The distance from the sea breeze to the inland is at least 70 km; the sea wind is prone to overcast weather, followed by cloudy weather, with the least wind in less cloudy days.
【作者单位】： 南京信息工程大学气象灾害教育部重点实验室;海南省气象台;
【基金】：公益性行业(气象)科研专项经费项目(GYHY201306009)
【分类号】：P714.2;P732
，

本文编号：1852642