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首页> 外文期刊>Applied optics >Retrieval of atmospheric-temperature and water-vapor profiles by use of combined satellite and ground-based infrared spectral-radiance measurements
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Retrieval of atmospheric-temperature and water-vapor profiles by use of combined satellite and ground-based infrared spectral-radiance measurements

机译：通过结合使用卫星和地面红外光谱辐射测量来检索大气温度和水汽剖面

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A nonlinear sounding retrieval algorithm is used to produce vertical-temperature and water-vapor profiles from coincident observations taken by the airborne High-resolution Interferometer Sounder (HIS) and the ground-based Atmospheric Emitted Radiance Interferometer (AERI) during the SUbsonic Contrails and Clouds Effects Special Study (SUCCESS). Also, clear sky Geostationary Operational Environmental Satellite (GOES) and AERI radiance measurements, achieved on a daily real-time basis at the Department of Energy's Oklahoma CART (Cloud and Radiation Testbed) site, are used to demonstrate the current profiling capability by use of simultaneous geostationary satellite and ground-based remote sensing observations under clear-sky conditions. The discrepancy principle, a method to find the proper smoothing parameters from the minimum value between the normalized spectral residual norm and the a priori upper bound, is used to demonstrate the feasibility and effectiveness of on-line simultaneous tuning of the multiple weighting and smoothing parameters from the combined satellite/airborne and ground-based measurements for the temperature and water-vapor retrieval in this nonlinear-retrieval process. An objective method to determine the degrees of freedom (d.f.) of the observation signal is derived. The d.f. of the radiance signal for the combined GOES and AERI measurements is larger than that for either instrument alone; while the d.f. of the observation signal for the combined GOES and AERI measurements is larger than that for either instrument alone and of the combined GOES and AERI measurements. The use of simultaneous clear-sky AERI and GOES data now provides improved vertical temperature and moisture soundings on an hourly basis for use in the Atmospheric Radiation Measurement program [J. Appl. Meteorol. 37, 875 (1998)].
机译：非线性测深检索算法用于通过机载高分辨率干涉仪测深仪（HIS）和地基大气辐射辐射干涉仪（AERI）在超音速轨迹和云层期间的同步观测产生垂直温度和水汽剖面特效研究（成功）。此外，在能源部的俄克拉荷马州CART（云和辐射测试台）站点上每天实时获得的晴空对地静止作战环境卫星（GOES）和AERI辐射度测量，被用于证明当前的分析能力在晴朗的天空条件下同时进行对地静止卫星和地面遥感观测。差异原理是一种从归一化的频谱残差范数和先验上限之间的最小值中找到合适的平滑参数的方法，用于证明在线同时调整多个加权和平滑参数的可行性和有效性从卫星/机载和地面联合测量中获得的温度和水蒸气在这种非线性检索过程中的获取。得出确定观测信号自由度（d.f.）的客观方法。 d.f. GOES和AERI组合测量的辐射信号大于单个仪器的辐射信号;而d.f. GOES和AERI组合测量的观测信号比单独使用任一仪器以及GOES和AERI组合测量的观察信号大。现在，同时使用晴空AERI和GOES数据可每小时一次改进垂直温度和湿度，以用于“大气辐射测量”程序[J.应用陨石37，875（1998）]。

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