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| 舟山群岛对9806号登陆热带气旋影响的数值模拟 |
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龚1,2, 陆维松1, 覃军1, 邵迪青2
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1.南京信息工程大学大气科学系, 江苏, 南京, 210044;2.浙江省舟山市气象局, 浙江, 舟山, 316004
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| 摘要: |
| 采用数值模拟方法,以9806号热带气旋为例,探讨了舟山群岛对登陆热带气旋的影响,结果表明舟山群岛的地形作用能使西行登陆热带气旋的路径产生偏折;同时,地形引起的气流爬坡作用还会使主要岛屿山脉迎风坡的降水增多,并诱生中小尺度的地形高压。这些结果揭示了小型岛屿地形影响登陆热带气旋的一些特殊规律。 |
| 关键词: 舟山群岛地形 9806登陆热带气旋 数值模拟 |
| DOI： |
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| 基金项目:国家自然科学基金项目(40275016);南京信息工程大学气象灾害和环境变化重点开放实验室(KLME)共同资助 |
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| NUMERICAL STUDY ON EFFECTS OF ZHOUSHAN ISLANDS TOPOGRAPHY ON LANDFALL TROPICAL CYCLONE NO.9806 |
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GONG Yang1,2, LU Wei-song1, QIN Jun1, SHAO Di-qing2
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1.Department of Atmospheric Sciences, NUIST, Nanjing 210044, China;2.Zhoushan Meteorological Bureau, Zhoushan 316004, China
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| Abstract: |
| Taking Tropical Cyclone(TC) No.9806(unnamed internationally) as an example,the effects of Zhoushan archipelago terrain on landfall TC are investigated by use of numerical simulation.Results show that,under topographic influences of Zhoushan Islands,the westward-moving landfall TC deflects.And,small orographic highs and enhanced rainfall caused by climbing airflow on the windward slope of main mountains of these islands are a result of effects of Zhoushan Islands.These results display some particular laws of effects of small-sized islands on the landfall of TC. |
| Key words: Zhoushan Islands topography TC No.9806 Numerical simulation |