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Near-real time total ozone column

European Space Agency



The total ozone column based on SCIAMACHY, GOME or OMI measurements are all delivered in near-real time. The total ozone column is retrieved with DOAS-type algorithms, TOSOMI for SCIAMACHY, OMDOAO3 for OMI, TOGOMI for GOME.

Latest total ozone results for OMI

The following plot shows the most recent ozone column values; click on the image for a larger version.  
OMI NRT total ozone column OMI


OMI (OMDOAO3: v., level1: collection 3):
   data & images : menu
SCIAMACHY (TOSOMI: version 2.0, level 1: version 7.04):
   data & images : menu
GOME-2 (GDP: version 4):
   data & images : latest images on the WDC at DLR  |  overpass
GOME (TOGOMI: version 2.1, level 1: version 4.00/4.01/4.03):
   data & images : menu
Effective temperature :
time series
Ground observations:
De Bilt observations (not yet validated)
Paramaribo observations (not yet validated)


When the data is used in scientific publications, please refer to the following publication:

For OMI (OMDOAO3) data:
Veefkind, J.P., J.F. de Haan, E.J. Brinksma, M. Kroon and P.F. Levelt, Total Ozone from the Ozone Monitoring Instrument (OMI) Using the DOAS technique, IEEE Trans. Geo. Rem. Sens., 2006, Vol. 44, No. 5, 1239-1244, doi:10.1109/TGRS.2006.871204.

H. J. Eskes, R. J. van der A, E. J. Brinksma, J. P. Veefkind, J. F. de Haan, and P. J. M. Valks, Retrieval and validation of ozone columns derived from measurements of SCIAMACHY on Envisat, Atmos. Chem. Phys. Discuss, 5, 4429-4475, 2005.

For GOME (TOGOMI) data:
Valks, P.J.M., J.F. de Haan, J.P. Veefkind, R.F. van Oss and D.S. Balis, TOGOMI: An improved total ozone retrieval algorithm for GOME, XX Quadrennial Ozone Symposium, 1/6/2004-8/6/2004, C.S. Zerefos (Ed), 2004, Athens, University of Athens, 129-130.





Introduction and related information:


Marc Allaart and Ronald van der A