Tropospheric and stratospheric ozone profiles during the 2019 TROpomi vaLIdation eXperiment (TROLIX-19)

Abstract

Abstract. A TROPOspheric Monitoring Instrument (TROPOMI) validation campaign was held in the Netherlands based at the CESAR (Cabauw Experimental Site for Atmospheric Research) observatory during September 2019. The TROpomi vaLIdation eXperiment (TROLIX-19) consisted of active and passive remote sensing platforms in conjunction with several balloon-borne and surface chemical (e.g., ozone and nitrogen dioxide) measurements. The goal of this joint NASA-KNMI geophysical validation campaign was to make intensive observations in the TROPOMI domain in order to be able to establish the quality of the L2 satellite data products under realistic conditions, such as non-idealized conditions with varying cloud cover and a range of atmospheric conditions at a rural site. The research presented here focuses on using ozone lidars from NASA's Goddard Space Flight Center to better evaluate the characterization of ozone throughout TROLIX-19. Results of comparisons to the lidar systems with balloon, space-borne and ground-based passive measurements are shown. In addition, results are compared to a global coupled chemistry meteorology model to illustrate the vertical variability and columnar amounts of both tropospheric and stratospheric ozone during the campaign period.

Ozone Profile Retrieval Algorithm Based on GEOS-Chem Model in the Middle and Upper Atmosphere

“…Systematic errors from measurements produce a retrieval error of ±3% [31]. OMPS_LP has also been widely used for the validation of other ozone profile products [18,19,32,33].…”

Evaluating WRF-GC v2.0 predictions of boundary layer height and vertical ozone profile during the 2021 TRACER-AQ campaign in Houston, Texas

“…First, the TROPOZ, as part of the ground-based Tropospheric Ozone Lidar Network (TOLNet, https://www-air. larc.nasa.gov/missions/TOLNet/, last access: 26 September 2023), has been used to provide continuous, highresolution profile measurements of the vertical ozone profile during various campaigns for satellite and model evaluation (Sullivan et al, 2014(Sullivan et al, , 2015(Sullivan et al, , 2019(Sullivan et al, , 2022Bernier et al, 2022;Kotsakis et al, 2022;Dacic et al, 2020;Johnson et al, 2016;Dreessen et al, 2016). The TROPOZ data can be used to identify pollutant transport to understand the vertical mixing of ozone.…”

To new heights by flying low: Comparison of aircraft vertical NO2 profiles to model simulations and implications for TROPOMI NO2 retrievals

“…The land-sea contrast in TROPOMI NO 2 retrieval As a contrasting case, Fig.8compares the sea NO 2 profiles to NO 2 profiles during the TROpomi vaLIdation eXperiment (TROLIX) in 2019(Sullivan et al, 2022) over the Netherlands (51.97 • N, 4.93 • E). The left panel shows mean TM5 NO 2 and averaging kernel profiles over land and sea as well as the mean aircraft-measured profiles.…”