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中文摘要：
利用2003--2006年观测资料分析了广西区夏季海陆风地面特征，并运用WRF模式模拟了2006年8月1—2日海陆风的结构，结果表明：使用修正后的城市下垫面试验模拟的海陆风强度和分布更接近实测，白天沿海城区为海风辐合带，与暴雨中心相对应；夜间北部湾海面为陆风的汇合区，易产生对流云团。城市化试验结果表明热岛效应加强了海风的发展，但削弱了陆风；同时热岛效应减缓了夜间城市上空大气的辐射冷却。使下沉运动相应减弱，从而抑制了逆温稳定发展的主要控制因子，逆温强度大幅度降低，但对逆温层高度影响不大。
英文摘要：
Based on the wind speed data obtained from weather stations in 2003--2006, characteristics of land-sea breeze circulation over Guangxi in summer are analyzed. And the structures of land-sea breeze on August 1--2 in 2006 are simulated with the WRF model. Results show that the revised scheme produces winds at the surface layer that is more consistent with the observations than the old one. When the sea（land） breeze prevails, there is a convergence field over the coast（sea） corresponding to the heavy rain centers. Besides, urbanization experiments show that the heat island effect strengthens（weakens） the circulation of the sea（land） breeze. Meanwhile, the heat island effect weakens both the radiation cooling effects of the atmosphere over urban areas at night and the subsidence motion, which is the main controlling factor in the evolution of temperature inversion. As a result, the temperature inversion is in a dramatically weakening period with its height unaffected.
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