2010•EGU General Assembly Conference AbstractsRequires access
Horizontal gradient studies for SCIAMACHY trace gas measurements in limb only mode
Jānis Puķīte, S. Kühl, T. Deutschmann, Steffen Dörner, Patrick Jöckel, U. Platt, Thomas Wagner
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Abstract
Limb measurements provided by the Scanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on the ENVISAT satellite allow retrieving stratospheric profiles of various trace gases on a global scale. Combining measurements of the same air volume from different viewing positions along the orbit, a tomographic approach can be applied and 2D distribution fields of stratospheric trace gases can be acquired in one inversion. With this approach, it is possible to improve the accounting for the effect of the horizontal gradients in the trace gas distribution on the profile retrieval. This was shown in a previous study for the retrieval of NO2 and OClO profiles in the Arctic region near the polar vortex boundary.