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NASA Tropospheric Chemistry Integrated Data Ceneter

TRACER-AQTRacking Aerosol Convection ExpeRiment – Air Quality

Archive Status Data Archive: TRACER-AQ 2021 Archive Status

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    Banner image includes annual average TROPOMI Tropospheric NO2 columns over the Houston region (April 2019-March 2018) with the approximate proposed locations for TOLNET lidars illustrating their capability for ozone profiling.

    In summer 2021, NASA will deploy assets to the Houston, Texas region to integratively observe air quality relevant constituents at high spatial and temporal resolutions. This effort will be conducted in parallel with the DOE-led Tracking Aerosol Convection interactions ExpeRiment (TRACER) campaign. Current planned components include:

        » Stationary air quality observations of ozone profiles from a subset of instruments from the Tropospheric Ozone Lidars Network (TOLNET)

        » Aircraft observations of ozone precursors (NO2 and HCHO) from the GEOCAPE Airborne Simulator (GCAS) in conjunction with ozone and aerosol profiles from the High Spectral Resolution Lidar-2 (HSRL-2)

    These measurements have become the foundation for preparatory measurements in the development of geostationary air quality capabilities (e.g., NASA TEMPO) as well as our continued partnership with the air quality community through collaborative field measurements and research.

    Through summer 2021, we aim to build upon new and existing partnerships and collaborations in the air quality and health research community. To ask questions or to get involved, please contact NASA co-PIs Laura Judd ( and John Sullivan (

    NASA - National Aeronautics and Space
    Curator: Ali Aknan
    NASA Official: Dr. Gao Chen

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