Updated validation of ACE and OSIRIS ozone and NO 2 measurements in the Arctic using ground-based instruments at Eureka, Canada

• Published in: Journal of Quantitative Spectroscopy and Radiative Transfer
• Main Authors: Bognar, K., Zhao, X., Strong, K., Boone, C. D., Bourassa, A. E, Degenstein, D. A., Drummond, J. R., Duff, A., Goutail, Florence, Griffin, D., Jeffery, P. S., Lutsch, E., Manney, G. L., Mcelroy, C. T., Mclinden, C. A., Millán, L. F., Pazmino, Andrea, Sioris, C. E., Walker, K. A., Zou, J.
• Other Authors: Department of Physics Toronto, University of Toronto, Environment and Climate Change Canada, Department of Chemistry Waterloo, University of Waterloo Waterloo, Institute of Space and Atmospheric Studies Saskatoon (ISAS), Department of Physics and Engineering Physics Saskatoon, University of Saskatchewan Saskatoon (U of S)-University of Saskatchewan Saskatoon (U of S), Department of Physics and Atmospheric Science Halifax, Dalhousie University Halifax, Department of Physics Kingston, Queen's University Kingston, Canada, STRATO - 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), NorthWest Research Associates (NWRA), Department of Physics Socorro, New Mexico Institute of Mining and Technology New Mexico Tech (NMT), Department of Earth and Space Science and Engineering York University - Toronto (ESSE), York University Toronto, Jet Propulsion Laboratory (JPL), California Institute of Technology (CALTECH)-NASA
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2019
• Subjects: ACE; Arctic; NO2; Ozone; OSIRIS; [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Canada; Eureka; Nunavut
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-02182891; https://hal-insu.archives-ouvertes.fr/insu-02182891/document; https://hal-insu.archives-ouvertes.fr/insu-02182891/file/1-s2.0-S002240731830935X-main.pdf; https://doi.org/10.1016/j.jqsrt.2019.07.014

Spectrograph and Infra-Red Imager System (OSIRIS); Atmospheric Chemistry Experiment (ACE) satellite instruments; zenith-sky differential optical absorption spectroscopy (DOAS) instruments; Fourier transform infrared (FTIR) spectrometers; Brewer spectrophotometer International audience This paper presents long-term intercomparisons (2003-2017) between ozone and NO 2 measured by the Optical Spectrograph and Infra-Red Imager System (OSIRIS) and the Atmospheric Chemistry Experiment (ACE) satellite instruments, and by ground-based instruments at the Polar Environment Atmospheric Research Laboratory (PEARL), near Eureka, Nunavut, Canada (80∘N, 86∘W). The ground-based instruments include four zenith-sky differential optical absorption spectroscopy (DOAS) instruments, two Fourier transform infrared (FTIR) spectrometers, and a Brewer spectrophotometer. Comparisons of 14-52 km ozone partial columns show good agreement between OSIRIS v5.10 and ACE-FTS v3.5/3.6 data (1.2%), while ACE-MAESTRO v3.13 ozone is smaller than the other two datasets by 6.7% and 5.9%, respectively. Satellite profiles were extended to the surface using ozonesonde data, and the resulting columns agree with the ground-based datasets with mean relative differences of 0.1-12.0%. For NO2, 12-40 km partial columns from ACE-FTS v3.5/3.6 and 12-32 km partial columns from OSIRIS v6.0 (scaled to 40 km) agree with ground-based partial columns with mean relative differences of 0.7-33.2%. Dynamical coincidence criteria improved the ACE to ground-based FTIR ozone comparisons, while little to no improvements were seen for other instruments, and for NO 2 . A ± 1∘ latitude criterion modestly improved the spring and fall NO 2 comparisons. The results of this study are consistent with previous validation exercises. In addition, there are no significant drifts between the satellite datasets, or between the satellites and the ground-based measurements, indicating that the OSIRIS and ACE instruments continue to perform well