The San Marco Station-Malindi, Kenya measures ozone data using balloon-borne ozonesondes as part of the NASA Southern Hemisphere ADditional OZonesondes (SHADOZ) project. The SHADOZ project is collecting ozone data for validation, processing, and modeling of satellite-derived Total Ozone Mapping Spectrometer (TOMS) data.
"The data on this website is preliminary: subject to revision and reprocessing. Check dates of creation to download the most current version. Contact the co-investigators for questions concerning data techniques and quality."
Thompson, A. M., J. C. Witte, R. D. McPeters, S. J. Oltmans, F. J. Schmidlin, J. A. Logan, M. Fujiwara, V. W. J. H. Kirchhoff, F. Posny, G. J. R. Coetzee, B. Hoegger, S. Kawakami, T. Ogawa, B. J. Johnson, H. Vomel and G. Labow. 2001. The 1998-2000 SHADOZ (Southern Hemisphere Additional Ozonesondes) Tropical Ozone Climatology: Comparisons with TOMS and Ground-based Measurements, J. Geophysical Research - Atmospheres, submitted, 2001.