Fig. 2.From: Influence of large-scale variations in convective available potential energy (CAPE) and solar cycle over temperature in the tropopause region at Delhi (28.3°N, 77.1°E), Kolkata (22.3°N, 88.2°E), Cochin (10°N, 77°E), and Trivandrum (8.5°N, 77.0°E) using radiosonde during 1980–2005Monthly mean temperature (top panels) at the 100-hPa level (∼16 km height) and monthly mean CAPE (bottom panels) are plotted for 1980–1989 and 1990–2006, respectively, at Kolkata. Linear trends are shown in both parameters (solid straight line). Over a period 1980–1989 and 1990–2006 linear trends are quite significant at the 95% significance level.Back to article page