Three-dimensional Distribution of PM2.5 Over the Yangtze River Delta as Cold Fronts Moving Through

The archived CNEMC dataset was downloaded from the data release platform of the China National Environmental Monitoring Center, which includes ground-based observations of PM2.5 concentration in 14 cities from September 2017 to Feburary 2018 and in 80 cities from October to November, 2017. The UAV PM2.5 concentration data was collected by Thermo Mie PDR-1500, which was carried by an unmanned aerial vehicle platform from the ground level to ~1000 m altitude in Nanjing, China. Observation time includes: 14:00 LT, 20:00 LT, 23:00 LT November 2, and 0500 LT, 14:00 LT, 20:00 LT November 3.归档的中国环境监测总站（China National Environmental Monitoring Center, CNEMC）数据集下载自该中心的数据发布平台。该数据集涵盖2017年9月至2018年2月期间14座城市的PM2.5浓度地面观测数据，以及2017年10月至11月期间80座城市的PM2.5浓度地面观测数据。无人机（Unmanned Aerial Vehicle, UAV）搭载的PM2.5浓度数据由Thermo Mie PDR-1500采集，该设备搭载于无人机平台，在中国南京市范围内从地面至约1000米海拔高度开展观测。观测时段涵盖：11月2日的当地时间（Local Time, LT）14:00、20:00、23:00，以及11月3日的当地时间05:00、14:00、20:00。