LESO-CN&EU&US-O3-DAILY/MONTHLY/YEARLY

Hourly to yearly surface ozone (O3) concentration in China (mainland), Europe, and the United States on a 0.1 deg scale. The date range is from 2012 to 2021. This is the product of the LESO framework. The algorithm publications are 'Learning Surface Ozone From Satellite Columns (LESO): A Regional Daily Estimation Framework for Surface Ozone Monitoring in China' and 'Satellite-derived estimates of surface ozone by LESO: Extended application and performance evaluation'.