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中文摘要：
利用COSMIC提供的GPS无线电掩星观测数据,从掩星弯曲角廓线出发确定对流层顶高度,并分别与对应的掩星温度廓线确定的温度最低点对流层顶（cold point tropopause,CPT）和温度递减率对流层顶（lapse rate tropopause,LRT）、无线电探空（距离掩星事件300km以内、观测时间差异3h以内）温度廓线确定的CPT和LRT进行了对比。
英文摘要：
The method to identify the tropopause height directly from the bending angle pro- file of global positioning system （GPS） radio occultation （RO） is studied. Using the GPS RO observations provided by the Constellation Observing System for Meteorology, Iono- sphere and Climate （COSMIC） mission, the heights of the tropopause are identified directly from the RO bending angle profiles. These tropopause heights are compared with the cold point tropopause （CPT） and the lapse rate tropopause （LRT） determined from the tempera- ture profiles of the corresponding RO events, as well as the CPT and the LRT derived from the radiosonde observations occur within 300 km and 3 hours of the RO events. The results show that to identify the tropopause directly from the bending angle profiles of GPS RO ob- servations is feasible.
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