Low-ozone bubbles observed in the tropical tropopause layer during the TC4 campaign in 2007

Petropavlovskikh, I., E. Ray, S.M. Davis, K. Rosenlof, G. Manney, R. Shetter, S.R. Hall, K. Ullmann, L. fister, J. Hair, M. Fenn, M. Avery, and A.M. Thompson (2010), Low-ozone bubbles observed in the tropical tropopause layer during the TC4 campaign in 2007, J. Geophys. Res., 115, D00J16, doi:10.1029/2009JD012804.