Physical Sciences and Mathematics Commons^™

The Diurnal Variation In Stratospheric Ozone From Macc Reanalysis, Era-Interim, Waccm, And Earth Observation Data: Characteristics And Intercomparison, Ansgar Schanz, Klemens Hocke, Niklaus Kämpfer, Simon Chabrillat, Antje Inness, Mathias Palm, Justus Notholt, Ian Boyd, Alan Parrish, Yasuko Kasai

Astronomy Department Faculty Publication Series

In this study, we compare the diurnal variation in stratospheric ozone of the MACC (Monitoring Atmospheric Composition and Climate) reanalysis, ECMWF Reanalysis Interim (ERA-Interim), and the free-running WACCM (Whole Atmosphere Community Climate Model). The diurnal variation of stratospheric ozone results from photochemical and dynamical processes depending on altitude, latitude, and season. MACC reanalysis and WACCM use similar chemistry modules and calculate a similar diurnal cycle in ozone when it is caused by a photochemical variation. The results of the two model systems are confirmed by observations of the Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) experiment and three selected sites of the …