Dominant Modes of Tropospheric Ozone Variation over East Asia from GOME Observations

<div>(a) Time series of the regional mean (80°E–140°E; 35°N–45°N) vertical EP-flux at 100 hPa between January 1996 and December 2010, PC1 decomposed from GOME TOVMR (PC1-O<sub>3</sub>) and GOME TOVMR (GOME-O<sub>3</sub>) between March 1996 and June 2003 over northern China, and ozonesonde observed tropospheric ozone mixing ratio (Sonde-O<sub>3</sub>) over Beijing from September 2002 to December 2010. (b) Lag correlation coefficients between EP-flux and the time series of ozone (red: PC1-O<sub>3</sub> over northern China; green: GOME ozone over northern China; blue: ozonesonde over Beijing).</div>

Advances in Meteorology

fig5

Figure 5

Figure 5: Dominant Modes of Tropospheric Ozone Variation over East Asia from GOME Observations 