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Recent results on the validation of the total ozone data obtained by remote sensing techniques

Chris Tzanis(1)

(1) University of Athens, University Campus, Building Phys.V, 15784, Athens, Greece

Abstract

The daily column ozone observations over Athens, Greece obtained by the SCanning Imaging Absorption SpectroMeter for Atmospheric CHartographY (SCIAMACHY), during 2002-2008 are compared with the corresponding observations made by the Ozone Monitoring Instrument (OMI), the Total Ozone Mapping Spectrometer (TOMS) and the Dobson spectrophotometer No. 118. The correlation coefficient between Dobson and SCIAMACHY observations was found to be 0.87, while the correlation coefficient between total ozone observations of SCIAMACHY and Earth Probe-TOMS, OMI is 0.85 and 0.93, respectively. SCIAMACHY overestimates the column ozone with respect to Dobson, Earth Probe-TOMS and OMI by 10 DU, 15 DU and 3 DU, respectively. The results obtained confirm that the Athens Dobson station may be used as a ground-data station for the SCIAMACHY column ozone observations.