Optimized Umkehr profile algorithm for ozone trend analyses
| العنوان: | Optimized Umkehr profile algorithm for ozone trend analyses |
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| المؤلفون: | Jeannette Wild, Sophie Godin-Beekmann, Irina Petropavlovskikh, Richard Querel, Audra McClure-Beegle, Lawrence E. Flynn, Krzysztof Wargan, Susan E. Strahan, Koji Miyagawa, Gérard Ancellet, Bryan J. Johnson, E. Beach |
| المساهمون: | Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado [Boulder]-National Oceanic and Atmospheric Administration (NOAA), ESRL Global Monitoring Laboratory [Boulder] (GML), NOAA Earth System Research Laboratory (ESRL), National Oceanic and Atmospheric Administration (NOAA)-National Oceanic and Atmospheric Administration (NOAA), Cooperative Institute for Satellite Eareth System Studies (CISESS), University of Maryland [College Park], University of Maryland System-University of Maryland System, NCEP Climate Prediction Center (CPC), NOAA National Weather Service (NWS), Universities Space Research Association (USRA), NASA Goddard Space Flight Center (GSFC), Science Systems and Applications, Inc. [Lanham] (SSAI), National Institute of Water and Atmospheric Research [Lauder] (NIWA), NOAA Center for Satellite Applications and Research (STAR), NOAA National Environmental Satellite, Data, and Information Service (NESDIS), IM Systems Group (IMSG), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), STRATO - LATMOS |
| المصدر: | Atmospheric Measurement Techniques Discussions Atmospheric Measurement Techniques Discussions, Copernicus Publications / European Geosciences Union 2022, pp.(Under Review). ⟨10.5194/amt-2021-203⟩ |
| بيانات النشر: | HAL CCSD, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], Data processing, Atmospheric Science, Ozone, Stray light, Homogenization (climate), Microwave Limb Sounder, chemistry.chemical_compound, chemistry, 13. Climate action, Satellite data, Calibration, Environmental science, Satellite, Remote sensing |
| الوصف: | The long-term record of Umkehr measurements from four NOAA Dobson spectrophotometers was reprocessed after updates to the instrument calibration procedures. In addition, a new data quality-control tool was developed for the Dobson automation software (WinDobson). This paper presents a comparison of Dobson Umkehr ozone profiles from NOAA ozone network stations – Boulder, the Haute-Provence Observatory (OHP), the Mauna Loa Observatory (MLO), Lauder – against several satellite records, including Aura Microwave Limb Sounder (MLS; ver. 4.2), and combined solar backscatter ultraviolet (SBUV) and Ozone Mapping and Profiler Suite (OMPS) records (NASA aggregated and NOAA cohesive datasets). A subset of satellite data is selected to match Dobson Umkehr observations at each station spatially (distance less than 200 km) and temporally (within 24 h). Umkehr Averaging kernels (AKs) are applied to vertically smooth all overpass satellite profiles prior to comparisons. The station Umkehr record consists of several instrumental records, which have different optical characterizations, and thus instrument-specific stray light contributes to the data processing errors and creates step changes in the record. This work evaluates the overall quality of Umkehr long-term measurements at NOAA ground-based stations and assesses the impact of the instrumental changes on the stability of the Umkehr ozone profile record. This paper describes a method designed to correct biases and discontinuities in the retrieved Umkehr profile that originate from the Dobson calibration process, repair, or optical realignment of the instrument. The Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) Global Modeling Initiative (M2GMI) and NASA Global Modeling Initiative chemistry transport model (GMI CTM) ozone profile model output matched to station location and date of observation is used to evaluate instrumental step changes in the Umkehr record. Homogenization of the Umkehr record and discussion of the apparent stray light error in retrieved ozone profiles are the focus of this paper. Homogenization of ground-based records is of great importance for studies of long-term ozone trends and climate change. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1867-8610 1867-8548 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4aea02f899848ee849f25ca8a799a07c https://hal-insu.archives-ouvertes.fr/insu-03353378 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4aea02f899848ee849f25ca8a799a07c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18678610 18678548 |
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