Model Data
This dataset provides gridded and regional ozone concentrations for North America and Europe from 2000 to 2018, including maximum daily 8-hour average ozone (MDA8) and corresponding contributions from nitrogen oxides (NOₓ) and volatile organic compounds (VOCs). The dataset contains annual gridded fields for both regions, regional peak-season ozone (PSO) time series for HTAP Tier 2 receptor regions, and month-centred average (MCA) ozone statistics for the periods 2000–2004, 2014–2018, and 2000–2018. NOₓ-tagged (NT) and VOC-tagged (VT) ozone contributions are provided for all data products.
Ozone and other key fields (2018-2024) over the northeastern and mid-Atlantic US modeled by WRF-Chem, relevant to the TOAR-II activity, Version 1.
This dataset provides a global chemical reanalysis of atmospheric composition for 2005–2021 by assimilating observations from OMI, GOME-2, SCIAMACHY, MLS, TES, and MOPITT into a global chemical transport model using an ensemble Kalman filter approach. The product includes meteorological fields, atmospheric concentrations of multiple chemical species, and emissions of NOₓ, CO, SO₂, and lightning NOₓ. Data are available at 1.1° × 1.1° resolution on 27 pressure levels, with two-hourly, six-hourly, and monthly temporal resolutions. Methodological details are provided by Miyazaki et al. (2015, 2017, 2019, 2020a, 2020b).
This dataset provides global three-dimensional simulations of tropospheric ozone (TO3) from the TOMCAT chemical transport model for the period 2008–2017. Ozone fields are available at two satellite local solar overpass times (09:30 and 13:30 LST) on a 2.8° × 2.8° horizontal model grid. The dataset includes atmospheric pressure and temperature fields, providing vertical information on ozone distributions up to 10 hPa. The ozone data have units of mass mixing ratio (1.0E-9). These model simulations were used in the study “Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite era.” This work was undertaken as part of the long-term science activities of the NERC National Centre for Earth Observation.
This dataset provides global ozone (O₃) concentrations for 2006–2016 derived from GEOS-Chem simulations at 2° × 2.5° horizontal resolution. The simulations were constrained using OMI NO₂ observations from the NASA standard product. Ozone concentrations were generated using NOₓ emissions from the dataset described by Qu et al. (2020).
This dataset provides daily mean ozone data from the TOMCAT three-dimensional chemical transport model and from satellite products derived from the IASI and GOME-2 instruments. The satellite observations were retrieved using schemes developed by RAL Space, as described by Miles et al. (2015) and Pope et al. (2021). The TOMCAT model data are available for 2017–2021, the IASI data for 2008–2023, and the GOME-2 data for 2015–2020.
This dataset provides monthly mean regional time series of lower tropospheric column ozone (0–6 km, or surface to 450 hPa) for North America, Europe, and East Asia from 2008 to 2017. The dataset combines three satellite products and simulations from the UKESM1.0 Earth System Model. The regions are defined using the HTAP-2 land mask. The satellite products include ozone retrievals from OMI produced by RAL Space, as well as the IASI FORLI and IASI SOFRID retrieval schemes. These data were used to investigate long-term trends and discrepancies among satellite-derived lower tropospheric ozone products.