TY  - Data
T1  - Daily Ground MDA8 O3 Reconstruction Data in China (2005-2011)
A1  - None
DO  - 10.5281/zenodo.6507706
PY  - 2024
DA  - 2024-11-28
PB  - National Cryosphere Desert Data Center
AB  - Accompanied by the continuous declines of PM2.5, O3pollution has become increasingly prominent and has been targeted by the Government of China to protect climate, ecosystem, and human health. Although satellite retrievals of column O3have been operated for decades and nationwide monitoring of ground-level O3has been offered since 2013 in China, climatological variability of ground-level O3remains unknown, which impedes understanding of the long-term driver and impacts of O3pollution in China. Here we develop an eXtreme Gradient Boosting (XGBoost) model integrating high-resolution meteorological data, satellite retrievals of trace gases, etc. to provide reconstructed daily ground-level O3 over 2005–2021 in China. Model validation confirms the robustness of this dataset, with R2of 0.89 for sample-based cross-validation. The accuracy of the long-term variations has also been confirmed with independent historical observations covering the same period from urban, rural and background sites. Our dataset covers the long time period of 2005–2021 with 0.1°×0.1°gap-free grids, which can facilitate climatological, ecological, and health research.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/a0dfbebf-3b25-460d-8a67-4bf244d6bb71
ER  -