ENSO Signal in Total Ozone over Tibet

Based on the analysis of satellite ozone observation and atmospheric circulation data, this study discusses the ENSO signal in the inter-annual variation of Tibet total ozone, comparing with the tropics and non-mountain zone at the same latitudes of Tibet. It is shown that the Tibet ozone increases in El Ni o events and decreases in La Ni a events, with weakened amplitudes compared with the Southern Hemisphere. In addition this article discusses the mass transportation related to the ozone variations.