Bremen 2017 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 5: Postersession
UP 5.15: Poster
Dienstag, 14. März 2017, 16:40–18:10, GW2 B3010
Retrieval of stratospheric ozone profiles from OMPS measurements in limb viewing geometry — •Carlo Arosio1, Alexei Rozanov1, Kai-Uwe Eichmann1, Elizaveta Malinina1, John P. Burrows1, Glenn Jaross2, and Pawan K. Bhartia2 — 1Institute of Environmental Physics, University of Bremen, Germany — 2NASA, Goddard Space Flight Center, USA
Due to its crucial role in the radiative budged of the stratosphere as well as its importance as an absorber of UV radiation, a continuous monitoring of the stratospheric ozone has been a priority for the scientific community. After the European ENVISAT satellite ceased its operations in 2012, only a few older satellite missions have been still contributing to this task. At the end of 2011, SUOMI-NPP mission carrying OMPS instrument was launched, enabling the study of the vertical distribution of stratospheric ozone by analyzing the intensity of the scattered solar light in limb viewing geometry.
The focus of our study is to adapt the algorithm developed at IUP for the retrieval of stratospheric ozone profiles from SCIAMACHY limb measurements to OMPS observations, with the final aim to obtain a continuous data set from both instruments. The retrieval settings account for the instrumental design by exploiting different spectral ranges at UV and VIS wavelengths. A cloud filter based on the Color Index Ratio is applied and surface albedo is retrieved simultaneously, accounting for stratospheric aerosol. The retrieval results over 6 months are compared in this poster with the NASA retrieval product and validated using MLS and ozonesondes collocated observations.