美国航天局资助着2009光达(LiDAR)的调查，由机载激光映射的国家中心进行。
NASA funded the 2009 LiDAR survey, which was carried out by the National Center for Airborne Laser Mapping.
作为美国国家航空航天局和法国国家太空研究中心(French Centre National d'Etudes Spatiales,CNES)的一项联合任务，CALIPSO卫星携带着一部脉冲激光器(激光雷达)，向大气中发射短脉冲激光。
A joint mission between NASA and the French Centre National d'Etudes Spatiales (CNES), CALIPSO carries a pulsating laser (lidar) that sends short pulses of light through the atmosphere.
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