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为了探讨湾岛影响海岸带微气候的物理机制,应用美国国家大气研究中心(NCAR)三维非静力平衡中尺度模式MM5对比研究概化的湾岛地区海岸带微气候的特征,得到了2种典型岸线形态下主要微气候要素的日变化规律。计算结果表明:不同的岸线特征使得近地面气压场和下垫面热通量的分布规律不同,从而影响海陆风环流的发展;而近地面风场辐合和辐聚的特性反过来又对气压场和热通量分布产生影响。
In order to explore the physical mechanism of the Gulf Island impacting the coastal microclimate, two types of microclimate characteristics of the coastal zone in the Bay of Islands were generalized using NCAR three-dimensional non-static balance mesoscale MM5 model Diurnal Variation of Main Microclimate Factors under Typical Shoreline Morphology. The calculated results show that the characteristics of the different shoreline make the distribution of atmospheric pressure near the ground surface and the underlying surface heat flux different, which will affect the development of the circulation of land, sea and land; and the convergence and convergence of near-surface wind Pressure field and heat flux distribution have an impact.