10.7910/DVN/ZPVSVU Jun, Wang Wang Jun Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Honghui, Xu Xu Honghui Zhejiang Lin'an Atmospheric Background National Observation and Research Station, Zhejiang Institute of Meteorological Sciences Wei, Xiao Xiao Wei Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Yuting, Pang Pang Yuting Zhejiang Lin'an Atmospheric Background National Observation and Research Station, Zhejiang Institute of Meteorological Sciences Ning, Hu Hu Ning Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology Jiaping, Xu Xu Jiaping Jiangsu Climate Center, Nanjing Yibo, Liu Liu Yibo Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration, Nanjing University of Information Science and Technology Lingbing, Bu Bu Lingbing Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology Chang, Cao Cao Chang Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Zhonghao, Yang Yang Zhonghao Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Tianhao, Wang Wang Tianhao Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Lei, Jia Jia Lei Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology Jinhui, Wu Wu Jinhui Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Mi, Zhang Zhang Mi Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Xuhui, Lee Lee Xuhui School of the Environment, Yale University Harvard Dataverse 2026 Earth and Environmental Sciences Jun, Wang Wang Jun Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology Wei, Xiao Xiao Wei Yale-NUIST Center on Atmospheric Environment, State Key laboratory of Climate System Prediction and Risk Management, Nanjing University of Information Science & Technology 2026-02-10 2026-02-12 16495 1555738 882823 1125595 121672 1627 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.sheet text/plain 1.0 Creative Commons CC0 1.0 Universal Public Domain Dedication. This dataset contains airborne vertical profile measurements of atmospheric CO<sub>2 </sub> and CH<sub>4</sub> concentrations over four cities in Eastern China: Beijing, Nanjing, Hengshui, and Shangqiu. The dataset includes full vertical profiles (from ground level to 2 km) over Beijing and Nanjing, as well as partial profiles over Hengshiu and Shangqiu. Data were collected on 14 May, 2023, with the primary objective of characterizing the vertical distribution of CO<sub>2</sub> and CH<sub>4</sub> within the urban atmospheric boundary layer.