The airborne imaging Fourier transform spectrometer GLORIA detects pollution gases in the Asian Monsoon Anticyclone

Measurements of peroxyacetyl nitrate (PAN) by the GLORIA instrument along the flight trajectory as a function of altitude. MIPAS has paved the way towards the measurement of pollution gases such as C₂H₂, PAN, and HCOOH. Now these gases are also measured with the imaging Fourier transform spektrometer GLORIA (https://doi.org/10.5194/acp-20-14695-2020). In the IMK research group "Remote sensing using aircraft and balloons", these measurements were used to test the ability of models to reproduce the measured distributions.

A key result of this study was that the adequate treatment of convection plays a key role for the success in reproducing the measured trace gas distributions. Only enhancements of pollutants related to large-scale convective structures are reproduced by the models. Structures in the measured distributions going along with small-scale convective events are not captured by the models.

For more information see: https://doi.org/10.5194/acp-20-14695-2020