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| 复杂地形低风速气象特征分析 | |
| 引用本文： | 唐敬,蔡旭晖,康凌,张宏升,王雷.复杂地形低风速气象特征分析[J].气象科学,2011,31(4):542-547. |
| 作者姓名： | 唐敬 蔡旭晖 康凌 张宏升 王雷 |
| 作者单位： | 1. 北京大学环境科学与工程学院,北京100871;解放军总装备部63655部队,乌鲁木齐841700 2. 北京大学环境科学与工程学院,北京,100871 3. 北京大学环境模拟与污染控制国家重点联合实验室,北京,100871 4. 北京大学物理学院大气与海洋科学系,北京,100871 5. 解放军总装备部63655部队,乌鲁木齐,841700 |
| 基金项目： | 国家重点基础研究发展计划（973计划）项目（2010CB428501）；国家高新技术研究发展计划（863计划）项目（2008AA06A415，2009AA06A41802） |
| 摘 要： | 利用13个地面站和1个100 m气象塔的全年实测资料分析湖南中北部丘陵地区中尺度范围的低风速气象特征。结果表明：（1）该区域低风速出现频率高，小于15 m/s的风速出现频率年均达416%；（2）低风速与地形情况密切相关，区域内西部山地的低风速出现频率明显高于东部平原地区；（3）低风速的出现具有日变化特点，典型出现时间段是夜间至次日上午；（4）低风速条件下10 min平均风向多出现大角度变化的情况，60°以上的风向变化频率可达20%～30%。（5）水平风向标准差在低风速情况下明显增大，但观测仪器性能会对小风结果产生影响。 |
| 关 键 词： | 低风速 统计特征 复杂地形 |
| 收稿时间： | 2011/5/16 0:00:00 |
Characteristics of low-wind speed meteorology over complex terrain in north-central Hunan Province |
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| TANG Jing,CAI Xuhui,KANG Ling,ZHANG Hongsheng and WANG Lei.Characteristics of low-wind speed meteorology over complex terrain in north-central Hunan Province[J].Scientia Meteorologica Sinica,2011,31(4):542-547. | |
| Authors: | TANG Jing CAI Xuhui KANG Ling ZHANG Hongsheng and WANG Lei |
| Institution: | TANG Jing1,4 CAI Xuhui1 KANG Ling2 ZHANG Hongsheng3 WANG Lei 4(1 School of Environmental Science and Engineering,Peking University,Beijing 100871,China,2 State Key Laboratory of Environmental Simulation and Pollution Control,3 Department of Atmosphere and Oceanic Science,School of Physics,4 Troop 63655,General Armament Ministry of PLA,Urumqi 841700,China) |
| Abstract: | Based on two annual data sets from thirteen ground observation sites and an observation tower,the meteorological nature of low-wind speed(LWS)conditions in north-central Hunan Province are analyzed.Main results obtained are as follows:(1)There is a high frequency of LWS in this region,the annual average frequency of wind speed less than 1.5 m/s reached 41.6%.(2)The emergence of LWS is closely related with the terrain.The frequency of LWS was higher in the eastern plains than in the western hills.(3)Diurnal ... |
| Keywords: | Low wind speed Statistics Complex terrain Hunan Province |
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