| 南岭山地浓雾的微物理结构及演变过程 |
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| 引用本文： | 唐浩华,范绍佳,吴兑,邓雪娇. 南岭山地浓雾的微物理结构及演变过程[J]. 中山大学学报(自然科学版), 2002, 41(4): 92-96 |
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| 作者姓名： | 唐浩华 范绍佳 吴兑 邓雪娇 |
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| 作者单位： | 1. 中山大学大气科学系,广东,广州,510275
2. 广州热带海洋气象研究所,广东,广州,510080 |
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| 基金项目： | 国家自然科学基金资助项目 (49975 0 0 1) |
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| 摘 要： | 南岭山地冬春季每当有华南准静止锋活动时浓雾发生的频率非常高。根据 2 0 0 1年 2 - 3月南岭山地浓雾试验获取的宏观和微观资料 ,分析该地浓雾微物理结构及其演变过程。结果表明 :南岭山地浓雾属于平流雾和爬坡雾 ,与冷空气活动 (锋面 )密切相关 ,具有持续时间长 ,能见度极其恶劣等特征 ;平均数密度 (N)、平均直径 (D)和含水量 (W)等微物理结构参量随时间变化很大 ,彼此存在关联 ;雾滴谱在浓雾过程中不断变化 ,反映了核化、凝结和碰并 (或碰撞 )、沉降等微物理过程的不平衡发展。
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| 关 键 词： | 南岭山地 平流雾和爬坡雾 微物理结构 微物理过程 |
| 文章编号： | 0529-6579(2002)04-0092-05 |
| 修稿时间： | 2002-01-11 |
Research of the Microphysical Structure and Evolution of Dense Fog over Nanling Mountain Area |
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| TANG Hao_hua ,FAN Shao_jia ,WU Dui ,DENG Xue_jiao. Research of the Microphysical Structure and Evolution of Dense Fog over Nanling Mountain Area[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2002, 41(4): 92-96 |
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| Authors: | TANG Hao_hua FAN Shao_jia WU Dui DENG Xue_jiao |
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| Affiliation: | TANG Hao_hua 1,FAN Shao_jia 1,WU Dui 2,DENG Xue_jiao 2 |
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| Abstract: | Sustained advection fog will occur over Nanling mountain area while the South China Quasi_stationary front comes during autumn and winter seasons, and the dense fog will last for a long time and result in very bad visibility.The characters of the microphysical structure and evolution of the dense fog were analyzed based on field data. It was found that the microphysical parameters such as fog droplet spectrum, droplet size distribution and water content, varied continuously during the development of the dense fog, and these might be the result of asymmetrical development of the microphysical processes including condensation, collection and deposition. |
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| Keywords: | Nanling Mountain area advection fog microphysical structure microphysical process |
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