TOLNet validation of satellite ozone profiles in the troposphere: impact of retrieval wavelengths

Abstract 3) profiles in the troposphere from the TROPOspheric Monitoring Instrument (TROPOMI) ultraviolet (UV), Cross-track Infrared Sounder (CrIS) infrared (IR), and a combined UV + + 3 in the troposphere during case studies representative of high-O3 events. This study shows that the improved sensitivity and vertical resolution in UV + ∼ + 3 enhancements and, to a lesser degree, near-surface pollution enhancements compared to single-wavelength satellite products. 3 profiles in the troposphere retrieved with the UV-only, IR-only, and UV + + - 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 retrievals and quantified by root mean squared errors (RMSEs), were large for all three retrievals, with UV-only, IR-only, and UV + 3 profiles due to the limited sensitivity and vertical resolution of these retrievals in the troposphere. Tropospheric systematic biases and random error were lower in IR-only and combined UV + 3 profile validation data in the troposphere, which is critical as this data source is the primary product identified for the tropospheric O3 validation of the recently launched Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: TOLNet validation of satellite ozone profiles in the troposphere: impact of retrieval wavelengths ; volume:17 ; number:8 ; year:2024 ; pages:2559-2582 ; extent:24 ; Atmospheric measurement techniques ; 17, Heft 8 (2024), 2559-2582 (gesamt 24)

Contributors, Places and Time

• Creator: 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

Further information

• DOI: 10.5194/amt-17-2559-2024
• URN: urn:nbn:de:101:1-2405090440085.018126805260
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:53 AM CEST