杨杨于2020年3月23日上午采用在线会议的方式顺利完成博士学位论文答辩，这是南京大学环境学院首次采用线上答辩的方式进行学位论文答辩。

       他的论文题目是基于卫星观测的长三角地区NOx排放表征及其对空气质量模拟的影响。论文委员会的主席是王勤耕教授，其他委员会成员包括赵纯教授、胡建林教授、张彦旭教授、王海鲲教授和张磊副教授。

       祝贺杨杨！

    On the morning of March 23, 2020, Yang Yang successfully completed the defense of his doctoral dissertation in the form of an online conference. This is the first time that the School of Environment at Nanjing University has used the online defense method to defend his thesis.

    The titles of his theses is "Estimation of NOX emissions based on satellite observation and its influence on air quality modeling in Yangtze River Delta, China". The chair of dissertation committee is Prof. Qingeng Wang, and other committee members include Prof. Chun Zhao, Jianlin Hu, Yanxu Zhang, Haikun Wang and Lei Zhang.

    Congratulations to Yang Yang！