摘要
利用1979—2014年的欧洲再分析月平均资料统计海南岛海风锋辐合的逐月演变情况,了解到4—8月海南岛北部沿海午后有海风锋辐合,其他月份海南岛西南部沿海在午后有海风锋辐合。在此基础上,利用WRF模式进行了风场的模拟,对4—8月海风锋的初始辐合位置和移动路径进行了分析。结果表明:4—8月海风锋辐合多产生在儋州-临高-澄迈-海口一带;6月以后,海风锋辐合初始位置最东发生在海口-文昌北部,海风锋辐合向东最远能推至文昌-琼海沿海一带;同时,海南岛东北部环境风场受海风增幅作用抑制了海风锋辐合的向东推进。
Based on the monthly-averaged European re-analysis data from 1979 to 2014, the monthly evolution feature of sea breeze front is analyzed. The results show that the sea breeze convergence front is occurred along the coastline at the northern of Hainan Island in the afternoon from April to August, and along the coastline at the southwest of Hainan Island in other months. The initial convergence position and movement path of sea breeze from April to August is analyzed by using WRF model simulated. The sea breeze front convergence is mostly occurred at the Danzhou-Lingao-Chengmai-Haikou area from April to August. After June, the initial convergence position of sea breeze front is occurred at Haikou-North Wenchang easternmost and convergence can promote to the eastern coast of Wenchang-Qionghai. The sea breeze front convergence is not conducive eastward due to environmental wind field which is increased by sea breeze at Hainan northeast.
出处
《海洋预报》
2016年第2期22-29,共8页
Marine Forecasts
基金
海南省气象局青年基金项目(HNQXQN201401)
关键词
边界层
风场辐合
海风锋
boundary layer
wind convergence
sea breeze front
