Retrieval of cirrus cloud optical thickness and top altitude from geostationary remote sensing
Retrieval of cirrus cloud optical thickness and top altitude from geostationary remote sensing
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DOI：
10.5194/amt-7-3233-2014
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发表时间：
2014-01-01
影响因子：
3.8
通讯作者：
Ostler, A.
中科院分区：
文献类型：
--
作者：
Kox, S.;Bugliaro, L.;Ostler, A.
本文提出了一种利用第二代静止气象卫星（MSG）上的自旋增强型可见光和红外成像仪（SEVIRI）探测卷云并反演卷云光学厚度和最高高度的新方法。在云-气溶胶激光雷达和红外探路者卫星观测（CALIPSO）使命上，用8000000次正交偏振云-气溶胶激光雷达（CALIOP）的同时测量进行了培训，新的“从CALIOP和SEVIRI算法在白天和晚上得出的卷云光学特性”（COCS）算法利用反向传播神经网络提供λ = 1.00时卷云光学深度τ的精确测量。532 nm和最高高度z，每15分钟覆盖几乎三分之一的地球大气层。反演值进行了验证与独立的测量CALIOP和光学厚度的机载高光谱分辨率激光雷达。
A novel approach for the detection of cirrus clouds and the retrieval of optical thickness and top altitude based on the measurements of the Spinning Enhanced Visible and Infrared Imager (SEVIRI) aboard the geostationary Meteosat Second Generation (MSG) satellite is presented. Trained with 8000000 co-incident measurements of the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) aboard the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) mission the new "cirrus optical properties derived from CALIOP and SEVIRI algorithm during day and night" (COCS) algorithm utilizes a backpropagation neural network to provide accurate measurements of cirrus optical depth tau at lambda = 532 nm and top altitude z every 15 min covering almost one-third of the Earth's atmosphere. The retrieved values are validated with independent measurements of CALIOP and the optical thickness derived by an airborne high spectral resolution lidar.