Average September Ozone Levels over Antarctica for 1979 to 1999
Visualizations by
Greg Shirah
Released on December 28, 1999
For more information and related images, please go to (the old archive of TOMS stories). Average October ozone levels over Antarctica for these years can be found in item 1395.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0