Evaluation of optimization of lidar temperature analysis algorithms using simulated data
Evaluation of optimization of lidar temperature analysis algorithms using simulated data
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DOI：
10.1029/97jd03494
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发表时间：
1998-03
影响因子：
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通讯作者：
T. Leblanc;I. McDermid;Alain Hauchecorne;P. Keckhut
中科院分区：
文献类型：
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作者：
T. Leblanc;I. McDermid;Alain Hauchecorne;P. Keckhut
为了测试喷气推进实验室(JPL)SO3ANL 3.2版和国家航空研究中心(CNRS/SA)回火2.1版激光雷达温度分析软件，已经对温度激光雷达数据进行了模拟。假定大气温度-气压-密度分布已知，利用位于加利福尼亚州桌山设施(TMF)和夏威夷毛纳罗亚天文台(MLO)的两台喷气推进实验室(JPL)激光雷达仪器的实际特性，以及位于法国上普罗旺斯天文台(OHP)的CNRS/SA Rayleigh激光雷达，计算了理论原始光子激光雷达轮廓。这些模拟是对来自CIRA-86模式的初始气候廓线和从该模式得出的各种廓线进行的，包括实际的大气扰动。对原始和恢复的温度分布进行比较，发现JPL和CNRS/SA程序的几个开尔文都有错误。通过改变模拟中的参数，可以确定这些误差的来源和大小。一旦确定，错误被纠正，分析程序被优化，导致这些程序的新的可操作版本(SO3ANL版本3.6和TIME版本2.2)。给出了这项工作前后温度激光雷达分析误差的准确计算。
Temperature lidar data have been simulated in order to test the Jet Propulsion Laboratory (JPL) SO3ANL version 3.2 and Service d'Aeronomie du Centre National de la Recherche Scientifique (CNRS/SA) TEMPER version 2.1 lidar temperature analysis software. Assuming known atmospheric temperature-pressure-density profiles, theoretical raw-photons lidar profiles have been calculated using the actual characteristics of two JPL lidar instruments, located at the Table Mountain Facility (TMF) in California and the Mauna Loa Observatory (MLO), Hawaii, and the CNRS/SA Rayleigh lidar, located at the Observatoire de Haute-Provence (OHP) in France. The simulations were performed for an initial climatological profile taken from the CIRA-86 model and for various profiles derived from this model including realistic atmospheric disturbances. Comparisons between the original and retrieved temperature profiles revealed errors of several kelvins for both the JPL and the CNRS/SA programs. By varying parameters in the simulation, it was possible to determine both the source and the magnitude of these errors. Once identified, the errors were corrected, and the analysis programs were optimized, leading to new operational versions of these programs (SO3ANL version 3.6 and TEMPER version 2.2). An accurate accounting of the temperature lidar analysis errors, before and after this work, is presented.