El Chichon Aerosol Studies Based upon SME Radiance Observations

太阳中间层探测器（SME）的分析程序 全球辐射数据集将用于研究厄尔尼诺现象 平流层气溶胶云。 全球观测， 0.44、1.27、1.87、6.8和9.6微米的波长分别为 1982-1986年SME临边探测实验返回的数据 期间，提供完整的时间范围内的El Chichon 活动 广泛的纬度（全球）和垂直（18-50 公里）的范围内的中小型企业的意见，导致全面的数据 为El Chichon气溶胶演变的定义而设置。 该项目将分析多波长SME观测， 限制气溶胶质量和颗粒大小分布 在厄尔尼诺的生长、成熟和衰退阶段， 奇雄气溶胶云。 气溶胶质量可以直接测定 从热红外辐射（6.8和9.6微米）。 强 可见光和近红外资料中气溶胶散射特征 集将提供作为函数的粒度分布 时间了 可用的陆基、飞机和气球 El Chichon气溶胶的观测将被纳入 为验证目的进行分析。 的一个关键方面 提议的调查是一名研究生的参与， 完成博士学位论文

A program of analysis of Solar Mesosphere Explorer (SME) global radiance data sets will be used to investigate the El Chichon stratospheric aerosol cloud. Global observations at wavelengths of .44, 1.27, 1.87, 6.8, and 9.6 microns were returned by SME limb sounding experiments over the 1982-1986 period, providing complete temporal coverage of the El Chichon event. The extensive latitudinal (global) and vertical (18-50 km) breadth of the SME observations leads to a comprehensive data set for definition of the evolution of the El Chichon aerosols. The project will analyze the multi-wavelength SME observations to constrain the aerosol mass and particle size distribution throughout the growth, maturity, and decay stages of the El Chichon aerosol cloud. Aerosol mass can be determined directly from the thermal-IR radiances (6.8 and 9.6 microns). Strong aerosol scattering signatures in the visible and near-IR data sets will provide the particle size distributions as a function of time. Available ground-based, aircraft, and balloon observations of El Chichon aerosols will be incorporated into the analysis for the purposes of validation. A key aspect of the proposed investigation is the involvement of a graduate student, towards the completion of a PH.D. thesis.