| 石家庄地区气溶胶和CCN垂直廓线的飞机观测分析 |
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| 引用本文： | 沙桐,马晓燕,银燕,李军霞.石家庄地区气溶胶和CCN垂直廓线的飞机观测分析[J].大气科学学报,2019,42(4):521-530. |
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| 作者姓名： | 沙桐 马晓燕 银燕 李军霞 |
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| 作者单位： | 南京信息工程大学气象灾害教育部重点实验室/气候与环境变化国际合作联合实验室/气象灾害预报预警与评估协同创新中心/中国气象局气溶胶与云降水重点开放实验室;山西省气象局人工影响天气办公室 |
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| 基金项目： | 国家自然科学基金资助项目（41475005；41675004）；科技部国家重点研发计划（2016YFA0600404） |
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| 摘 要： | 利用2010年春夏之交石家庄地区11架次的气溶胶和云凝结核(CCN)飞机同步观测资料,对比分析该地区云天和晴天气溶胶粒子的垂直廓线、不同高度气溶胶数谱特征,以及CCN的垂直分布、活化特性等。结果表明:云天气溶胶数浓度均值为1 553.28 cm~(-3),有效直径均值为0.52μm,比晴天数浓度(883.82 cm~(-3))大76%,有效直径(0.37μm)大41%。云天气溶胶数浓度呈指数型递减分布,有效半径在2 500 m以下随高度变化不明显,2 500 m以上随高度逐渐增大。晴天气溶胶数浓度在800～1 500 m内有累积,有效半径随高度没有明显的变化趋势。不同高度上气溶胶谱型基本一致,云天和晴天在气溶胶小尺度端(0.3μm)谱分布是连续的,在0.3μm处数谱均明显下降。云天和晴天CCN数浓度均随高度增大而减小,且各个高度层上云天CCN数浓度均大于晴天。云天CCN活化比率随高度变化不明显,晴天CCN活化比率随高度增大。气溶胶粒子尺度与CCN活化比率之间呈线性正相关。
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| 关 键 词： | 石家庄地区 飞机观测 气溶胶 云凝结核 垂直廓线 |
| 收稿时间： | 2017/3/18 0:00:00 |
| 修稿时间： | 2017/6/25 0:00:00 |
Aircraft measurements and analysis of the vertical distribution of aerosol particles and CCN over the Shijiazhuang area |
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| SHA Tong,MA Xiaoyan,YIN Yan and LI Junxia.Aircraft measurements and analysis of the vertical distribution of aerosol particles and CCN over the Shijiazhuang area[J].大气科学学报,2019,42(4):521-530. |
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| Authors: | SHA Tong MA Xiaoyan YIN Yan and LI Junxia |
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| Institution: | Key Laboratory of Meteorological Disaster, Ministry of Education, Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory of Meteorological Disaster, Ministry of Education, Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory of Meteorological Disaster, Ministry of Education, Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science & Technology, Nanjing 210044, China and Weather Modification Office of Shanxi Province, Taiyuan 030032, China |
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| Abstract: | |
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| Keywords: | Shijiazhuang area aircraft measurements aerosol CCN vertical distribution |
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