Tropospheric ozone column dataset from OMPS-LP/OMPS-NM limb–nadir matching
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Published:2024-03-28
Issue:6
Volume:17
Page:1791-1809
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Orfanoz-Cheuquelaf AndreaORCID, Arosio CarloORCID, Rozanov AlexeiORCID, Weber MarkORCID, Ladstätter-Weißenmayer Annette, Burrows John P.ORCID, Thompson Anne M.ORCID, Stauffer Ryan M.ORCID, Kollonige Debra E.
Abstract
Abstract. A tropospheric ozone column (TrOC) dataset from the Ozone Mapping and Profiler Suite (OMPS) observations was generated by combining the retrieved total ozone column from OMPS – Nadir Mapper (OMPS-NM) and limb profiles from OMPS – Limb Profiler (OMPS-LP) data. All datasets were generated at the University of Bremen, and the TrOC product was obtained by applying the limb–nadir matching technique (LNM). The retrieval algorithm and a comprehensive analysis of the uncertainty budget are presented here. The OMPS-LNM-TrOC dataset (2012–2018) is analysed and validated through comparison with ozonesondes, tropospheric ozone residual (TOR) data from the combined Ozone Monitoring Instrument/Microwave Limb Sounder (OMI/MLS) observations, and the TROPOspheric Monitoring Instrument (TROPOMI) Convective Cloud Differential technique (CCD) dataset. The OMPS-LNM TrOC is generally lower than the other datasets. The average bias with respect to ozonesondes is −1.7 DU with no significant latitudinal dependence identified. The mean difference with respect to OMI/MLS TOR and TROPOMI CCD is −3.4 and −1.8 DU, respectively. The seasonality and inter-annual variability are in good agreement with all comparison datasets.
Funder
European Space Agency Universität Bremen Deutsche Forschungsgemeinschaft
Publisher
Copernicus GmbH
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