Research Article

Spatial Heterogeneity in Tropospheric Column Ozone over the Indian Subcontinent: Long-Term Climatology and Possible Association with Natural and Anthropogenic Activities

Figure 9

(a) Scatter plot of monthly normalized tropospheric ozone over NE for the entire period 1979–2009. The solid line is the linear regression through the points. (b) Scatter plot of normalized monthly tropospheric O3 over NE as obtained using only TOR data for the period 1979–2005 (top) and 1989–2005 (bottom). (c) Scatter plot of normalized monthly tropospheric O3 over NE as obtained using TOR data only for the period 1997–2005.
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924516.fig.009b
(b)
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(c)