Dresden 2020 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 5: Poster Session
UP 5.6: Poster
Mittwoch, 18. März 2020, 14:00–16:00, P2/4OG
Validation of the Multiple Airglow Chemistry model applied using zonally averaged data sets — •Olexandr Lednyts’kyy1, Amirmahdi Zarboo2, Christian von Savigny1, and Miriam Sinnhuber2 — 1University of Greifswald, Greifswald, Germany — 2Karlsruhe Institute of Technology, Karlsruhe, Germany
The Multiple Airglow Chemistry (MAC) model proposed to represent the photochemistry in the upper Mesosphere and Lower Thermosphere (MLT) region is applied to retrieve profiles of atomic oxygen (O) concentration ([O]). O is an important tracer for the energy budget of the MLT region. SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY) and SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) aboard two satellites measured multiple nightglow emission rate profiles remotely in the time range 4/2010…3/2011 at ∼22:00 local time; these profiles are employed in the [O] retrievals. Reference [O] profiles, extracted using SABER as well as simulated using the empirical NRLMSISE-00 model and the composition-climate models, are compared with [O] profiles retrieved using the MAC model. Previously, calculations using the MAC model were tuned on the basis of the individual in situ profiles measured during the ETON rocket campaign and validated using three other rocket campaigns. The results presented in this contribution demonstrate that the MAC model can be used to retrieve [O] profiles on the basis of individual and zonally averaged emission profiles obtained using satellite observations. These observations provide an important basis for evaluation of the O content in models.