What can be seen by IASI during pollution events in East Asia?

Maya George (1) , Cathy Clerbaux (1, 2) , Juliette Hadji-Lazaro (1) , Anne Boynard (1) , Idir Bouarar (3) , Daniel Hurtmans (2) , Catherine Wespes (2) , Sophie Bauduin (2) , Martin van Damme (2) , Simon Whitburn (2) , Pierre-François Coheur (2) , David P. Edwards (4) , Merritt N. Deeter (4) , Helen M. Worden (4) , Antje Inness (5)

1 TROPO - LATMOS
2 Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique
3 MPI-M - Max Planck Institute for Meteorology
4 ACOML - Atmospheric Chemistry Observations and Modeling Laboratory
5 ECMWF - European Centre for Medium-Range Weather Forecasts

With two IASI instruments flying on the MetOp-A and MetOp-B satellites, any location on Earth is now observed at least four times per day in the infrared spectral range. All cloud free observations are analysed in near real time mode, and a series of gases can be retrieved from the recorded spectra. We will present a detailed study of what can be detected by IASI during pollution events in East Asia. Record levels of CO, tropospheric O₃, SO₂ and NH₃ are measured, and the reliability of the IASI observations will be investigated: what are the concentrations detected throughout the year and when pollution events occur, to what extent is it matching local PM observations, and what is the sensitivity of the IASI observations at the surface. An in-depth analysis will be presented for CO, with comparisons with IAGOS aircraft data and MOPITT v7 satellite data. IASI and MOPITT data are jointly assimilated in the Copernicus Atmospheric Monitoring Service (CAMS) to generate CO pollution forecasts. Examples above East Asia will be shown.

Domaines: Physique Atmosphérique et Océanique [physics.ao-ph]; Océan, Atmosphère

Maya George, Cathy Clerbaux, Juliette Hadji-Lazaro, Anne Boynard, Idir Bouarar, et al.. What can be seen by IASI during pollution events in East Asia? . AGU Fall Meeting 2016, Dec 2016, San Francisco, United States. pp.A24A-04. ⟨insu-01403392⟩