Heidelberg 2015 – wissenschaftliches Programm
UP 13.4: Poster
Donnerstag, 26. März 2015, 10:45–19:45, G/Foyer
Validation of the IUP Nadir Ozone Profile Retrieval — •Stefan Bötel, Mark Weber, Alexei Rozanov, and John P. Burrows — Institute of Environmental Physics at the University of Bremen
Stratospheric profile retrieval of ozone in the Hartley-Huggins band in nadir viewing geometry is one of very few options of obtaining a far-reaching timeseries of ozone profiles. The IUP optimal estimation type retrieval including a spectral soft calibration based on the FUll Retrieval Method (FURM) by Hoogen et al. (1999) has been successfully applied to a number of sensonrs. SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric ChartographY) launched on ENVISAT in March 2002 measures sunlight, transmitted, reflected and scattered by the earth atmosphere or surface (240 nm - 2380 nm) in both nadir and limb viewing geometry. GOME (the Global Ozone Monitoring Instrument) and GOME-2 (the Global Ozone Monitoring Instrument-2) both measure in the nadir geometry from 1995 to 2003 and 2006 to today respectively in the wavelength region between 240 and 790 nm. Validation and intercomparison results for these sensors will be shown. The validation will be based on independant measurements such as WOUDC (World Ozone and Ultraviolet Radiation Data Centre) ozonesondes and NDACC (Network for the Detection of Atmospheric Composition Change) lidars. Intercomparison results will be shown based on zonal means between the three sensors used and ozone profiles retrived independantly from additional satellite based instruments.