Satellite-borne remote sensing of trace gases (SAT)
We investigate the complex interaction of chemical and dynamical processes in the Earth's atmosphere on basis of distributions of trace gases, aerosols, clouds and temperature which we derive from spectral measurements of satellite remote sensing instruments. Our work field covers processing of satellite data and their validation, the research on physical and chemical processes in the atmosphere on the basis of the retrieved distributions of temperature, particles and trace gases, and the development and implementation of related satellite data analysis algorithms. The current focus of our work is the MIPAS-Envisat mission. The MIPAS satellite data derived by our group can be accessed here. Besides our work with MIPAS we are involved in the preparation of future space missions. On this website you find information about our publications, MIPAS-Envisat data, the annual MIPAS Data User Meeting, our radiative transfer model KOPRA, the team and our projects, as well as some pictures.
Highlight of the month:
The role of natural variability in satellite ozone validation
The left panel shows the mean relative difference between ACE-FTS and OSIRIS ozone profile measurements for various coincidence criteria in terms of spatial and temporal distance. In the middle panel the two-sigma variation of the relative differences are shown. In the right panel the number of available coincidences is shown. More strict coincidence criteria lead in general to better agreement between ACE-FTS and OSIRIS. However there is a price to pay in that the number of coincidences is smaller, leading to a less significant comparison. The black curve represents an optimized coincidence criterium based on modelled natural variability and maximal allowable natural variability. This work was performed in the framework of the TUNER SPARC activity and has recently been published in the AMT TUNER special issue.
Figure from: https://doi.org/10.5194/amt-14-1425-2021