The short-term impact estimate of COVID-19 epidemic on social-economic activity of China by using remotely sensed NO2 observations
CAI Xiaobin1， REN Yongpeng1,2， ZHANG Yuan3， LI Tinghui4， CHEN Fang4， DONG Jiadan4， CHEN Xiaoling4
1.Innovation Academy for Precision Measurement Science and Technology， Chinese Academy of Sciences，Wuhan 430077， China；2.University of Chinese Academy of Sciences， Beijing 100049， China；3.Environmental Monitoring Center Station of Wuhan， Wuhan 430079， China；4.State Key Laboratory of Information Engineering in Surveying， Mapping and Remote Sensing， Wuhan University， Wuhan 430079， China
Abstract：As an air pollutant highly correlated to urban transport and heavy industry， NO2 could directly reflect the volatility of social-economic activity. The daily tropospheric NO2 column density products during the Chinese New Year periods of 2019 and 2020 were combined to generate the weekly results， which were transferred to a novel index， the standard social-economic index (SSEI). The results showed that the Chinese New Year Holiday could significantly suppress the social-economic activities. Moreover， the COVID-19 made the decrease period of social-economic index prolonged 2-3 weeks. And the lowest value of the SSEI was reduced by 0.10 relative to that of the normal year. However， the social-economic activity was stably increased in the fourth week after the holiday. The SSEI of the seventh week after the holiday had been resumed to 60.91% of the highest value before the holiday.
蔡晓斌,任永鹏,张 媛,李婷慧,陈 芳,董佳丹,陈晓玲. 利用卫星遥感NO2监测结果分析COVID-19疫情对我国社会经济活动的短期影响[J]. 华中师范大学学报(自然科学版), 2020, 54(6): 1045-1050.
CAI Xiaobin,REN Yongpeng,ZHANG Yuan,LI Tinghui,CHEN Fang,DONG Jiadan,CHEN Xiaoling. The short-term impact estimate of COVID-19 epidemic on social-economic activity of China by using remotely sensed NO2 observations. journal1, 2020, 54(6): 1045-1050.
2020, Vol. 54 
