摘要
分析了COVID-19疫情初期河南省空气质量指数(AQI),并探讨了2项重要污染物(PM_(2.5)和NO_(2))分布状况和变化趋势,发现疫情管控后AQI总体趋势向好,MODIS载荷反演PM_(2.5)浓度下降了22.7%,TropOMI卫星反演NO_(2)柱浓度同比下降61.95%,环比下降70.25%。另外,对NO_(2)日遥感监测结果按照“前-中-后”3个时段进行周尺度归一化社会经济活动指数SSEI计算,结果显示疫情管控措施对社会经济活动有明显的抑制作用,在疫情得到基本控制后,大部分地区的工业热源企业虽已逐步有序恢复生产,但经历了缓慢的恢复过程。河南省的经济活动恢复水平在春节后第1周至第5周处于渐进式增长状态,第6周有所回落,第7周继续攀升。
This paper analyzed the distribution and change trend of AQI,PM_(2.5) and NO_(2) in Henan Province at the beginning of COVID-19.The overall trend of AQI was better after epidemic control.PM_(2.5) concentration retrieved by MODIS decreased 22.7%.NO_(2) column density retrieved by TropOMI satellite decreased 61.95%year-on-year and 70.25%month on month.In addition,this paper calculated the weekly normalized social and economic activity index SSEI according to the three periods of“Front-Middle-Back”,The results showed that the epidemic control measures had a significant inhibitory effect on social and economic activities.After the epidemic situation was basically controlled,the industrial heat source enterprises in most areas had gradually and orderly resumed production,but experienced a slow recovery process.The economic recovery of Henan Province was in a gradual growth state from the first week to the fifth week after the Spring Festival,then dropped in the sixth week and continued to rise in the seventh week.
作者
秦臻
张明
张月莹
李莘莘
李春晓
连芳
阚俊峰
QIN Zhen;ZHANG Ming;ZHANG Yueying;LI Shenshen;LI Chunxiao;LIAN Fang;KAN Junfeng(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450007,China;Henan Key Laboratory of Spatial Information Application on Eco-Environmental Protection,Zhengzhou 450007,China;Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;Henan Administration of Surveying,Mapping and Geoinformation,Zhengzhou 450003,China)
出处
《中国环境监测》
CAS
CSCD
北大核心
2021年第6期221-228,共8页
Environmental Monitoring in China
基金
国家自然科学基金资助项目“融合时空大数据和高级空间统计模型的近地面NO2遥感估算方法研究”(U1804154)
郑州市重大科技创新专项“天地一体化环境信息监控系统”(188PCXZX795)。
