近十年东亚地区气溶胶光学特性的特征研究
Study on the Characteristics of aerosol optical properties over East Asia in recent decade
研究大气气溶胶的光学特性能够减小其辐射强迫估算中的不确定性。利用MODIS卫星气溶胶数据和Aura OMI Level-3 每日全球气溶胶数据对近10年东亚地区的气溶胶光学厚度（AOD）、波长（A）指数、吸收性气溶胶光学厚度（AAOD）以及单次散射反照率（SSA）进行分析，结果表明：AOD和AAOD的大值区主要集中在四川盆地、长三角、京津冀、珠三角等地，且具有显著的季节变化，受沙尘、吸湿增长和冬季取暖的影响，AOD（AAOD）春夏（冬春）季较高，秋季较低。SSA小值区主要分布在华中、东部地区，其在夏秋季较大，冬季较小。受沙尘和海盐气溶胶的影响，部分沿海地区和沙漠地区A指数较小。东亚地区多年平均的气溶胶AOD、AAOD、SSA和A指数分别为0.26、0.04、0.95和1.03。
Study on the aerosol optical properties has contribution to reduce the uncertainties in estimating its radiative forcing. Based on MODIS aerosol retrieval data, aerosol optical depth (AOD), Angstrom exponent (AE) absorbing aerosol optical depth (AAOD) and single scattering albedo (SSA) in recent decade are analyzed over the East Asian region in recent 10-years. The results showed that high level of AOD and AAOD were mostly distributed in southwest, Jing-Jin-Ji, Yangtze River Delta and Pearl River Delta, with significant seasonality. AOD (AAOD) is large in spring and summer (spring and winter) while is small in fall. Low level of SSA is found in center to east China. SSA is small in winter while large in summer. Due to the affection of dust and sea salt aerosols, AE is likely smaller in coastal and desert areas. Near ten year averaged AOD, AAOD, SSA and AE are 0.26, 0.04, 0.95 and 1.03 over East Asia.
庄炳亮、邓婉月
大气科学（气象学）环境科学技术现状环境污染、环境污染防治
气溶胶光学厚度单次散射反照率波长指数
aerosolsoptical depthsingle scattering albedoAngstrom exponent
庄炳亮,邓婉月.近十年东亚地区气溶胶光学特性的特征研究[EB/OL].(2015-12-10)[2025-08-19].http://www.paper.edu.cn/releasepaper/content/201512-575.点此复制
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