研究报告
刘贞,张雪姣,郑有飞,刘建军.基于CALIPSO对中国春季一次沙尘暴的研究[J].环境科学学报,2016,36(12):4315-4327
基于CALIPSO对中国春季一次沙尘暴的研究
- Spatio-temporal distribution and transport behavior of a dust event based on the CALIPSO in China
- 基金项目：国家自然科学基金面上项目（No.41075114）；国家重点基础发展计划项目（No.2006CB403705）
- 作者
- 单位
- 刘贞
- 秦皇岛市气象局, 秦皇岛 066000
- 张雪姣
- 合水县气象局, 合水县 745400
- 郑有飞
- 江苏省气象灾害重点实验室, 南京 210044
- 刘建军
- 江苏省气象灾害重点实验室, 南京 210044
- 摘要：文章利用CALIPSO卫星观测资料，结合气溶胶模式模拟，分析了2013年入春以来发生的第1次强沙尘天气过程中的沙尘气溶胶垂直分布特征及输送特性.结果表明：此次沙尘事件有两个源区，南疆盆地（源区一），沙尘先后输送影响我国内蒙古西南部、甘肃、宁夏等地区.2月27日沙尘在甘肃西部河西走廊附近，沙尘气溶胶分布在2~5 km，退偏振比在0.1~0.5之间，色比在0.4~0.8之间；28日新疆地区沙尘气溶胶分布在4~12 km，退偏振比在0.3~0.5，色比在0.5~1.0之间.蒙古国西南部地区（源区二），沙尘先后影响我国内蒙古中西部地区、甘肃、山西北部、陕西北部、河北北部和东北西南部地区，2月28日内蒙古沙尘气溶胶分布在4~11 km，退偏振比在0.2~0.5之间，色比在0.5~1.2之间.
- Abstract：The vertical structure and transport behavior of one strong dust event detected in spring 2003 were investigated using a combination of CALIPSO measurements and an aerosol model simulation. The results showed that dust was originated from either Southern Xinjiang Basin (source 1) or Southwest region of Mongolia (source 2). The dust originated in source 1 was transported to the region of southwest Mongolia, Gansu Province, Ningxia Province, etc. On Feb. 27, dust over the Hexi corridor in west Gansu Province was distributed between 2 and 5 km with depolarization ratio of 0.1~0.5 and color ratio of 0.4~0.8. On Feb. 28, dust in Xinjiang region was distributed between 4 and 12 km, with depolarization ratio of 0.3~0.5 and color ratio of 0.5~1.0. The dust originated from source 2 was transported to the region of middle-west Inner Mongolia, Gansu, north Shanxi, Shaanxi and Hebei and southwest of Northeast China region. Dust detected over Inner Mongolia on Feb. 28 was distributed between 4 km and 11 km with polarization ratio of 0.2~0.5 and color ratio of 0.5~1.2.
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