Academic Journal
TOLNet validation of satellite ozone profiles in the troposphere: impact of retrieval wavelengths
| العنوان: | TOLNet validation of satellite ozone profiles in the troposphere: impact of retrieval wavelengths |
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| المؤلفون: | Johnson, Matthew S., Rozanov, Alexei, Weber, Mark, Mettig, Nora, Sullivan, John, Newchurch, Michael J., Kuang, Shi, Leblanc, Thierry, Chouza, Fernando, Berkoff, Timothy A., Gronoff, Guillaume, Strawbridge, Kevin B., Alvarez, Raul J., Langford, Andrew O., Senff, Christoph J., Kirgis, Guillaume, McCarty, Brandi, Twigg, Larry |
| بيانات النشر: | Copernicus Publications |
| سنة النشر: | 2024 |
| المجموعة: | Niedersächsisches Online-Archiv NOA (Gottfried Wilhelm Leibniz Bibliothek Hannover) |
| مصطلحات موضوعية: | article, Verlagsveröffentlichung |
| الوصف: | The Tropospheric Ozone Lidar Network (TOLNet) was used to validate retrievals of ozone (O3) profiles in the troposphere from the TROPOspheric Monitoring Instrument (TROPOMI) ultraviolet (UV), Cross-track Infrared Sounder (CrIS) infrared (IR), and a combined UV + IR wavelength retrieval from TROPOMI/CrIS. Observations from six separate ground-based lidar systems and various locations of ozonesondes distributed throughout North America and in the Netherlands were used to quantify systematic bias and random errors for each satellite retrieval. Furthermore, TOLNet data were used to intercompare idealized UV, IR, and UV + IR convolved lidar profiles of O3 in the troposphere during case studies representative of high-O3 events. This study shows that the improved sensitivity and vertical resolution in UV + IR retrievals in the middle- and upper-troposphere resulted in tropospheric degree of freedom (DOF) values ∼ 33 % higher compared to UV- and IR-only retrievals. The increased DOFs in the UV + IR retrievals allowed for improved reproduction of mid- and upper-tropospheric O3 enhancements and, to a lesser degree, near-surface pollution enhancements compared to single-wavelength satellite products. The validation of O3 profiles in the troposphere retrieved with the UV-only, IR-only, and UV + IR Tikhonov regularised Ozone Profile retrievAl with SCIATRAN (TOPAS) algorithm developed at the Institute for Environmental Physics, University of Bremen, demonstrated the utility of using TOLNet as a satellite evaluation data set. TOPAS UV-only, IR-only, and UV + IR wavelength retrievals had systematic biases, quantified with normalized mean bias, throughout the troposphere of 11.2 ppb (22.1 %), −1.7 ppb (−0.3 %), and 3.5 ppb (7.8 %), respectively, which meet the tropospheric systematic bias requirements defined by the science teams for the TROPOMI and CrIS sensors. The primary drivers of systematic bias were determined to be solar zenith angle, surface albedo, and cloud fraction. Random errors, representative of uncertainty in the ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | electronic |
| اللغة: | English |
| Relation: | Atmospheric Measurement Techniques -- http://www.bibliothek.uni-regensburg.de/ezeit/?2505596 -- http://www.atmospheric-measurement-techniques.net/ -- 1867-8548; https://doi.org/10.5194/amt-17-2559-2024; https://noa.gwlb.de/receive/cop_mods_00073385; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071553/amt-17-2559-2024.pdf; https://amt.copernicus.org/articles/17/2559/2024/amt-17-2559-2024.pdf |
| DOI: | 10.5194/amt-17-2559-2024 |
| الاتاحة: | https://doi.org/10.5194/amt-17-2559-2024 https://noa.gwlb.de/receive/cop_mods_00073385 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00071553/amt-17-2559-2024.pdf https://amt.copernicus.org/articles/17/2559/2024/amt-17-2559-2024.pdf |
| Rights: | https://creativecommons.org/licenses/by/4.0/ ; uneingeschränkt ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.35F18B89 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/amt-17-2559-2024 |
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