Investigating the Influence of Anthropogenic Forcing on Observed Mean and Extreme Sea Level Pressure Trends over the Mediterranean Region

Figure 2

Observed seasonal and annual area mean changes of mean sea level pressure over the period 1975–2004 (grey bars) in comparison with the projected GS signals (GS) estimated from two well-separated time slices, according to SRES A1B scenario using 17 models (green bars) and the simulated GS signal based on ensemble mean of 17 ANT simulations conducted with 9 models forced with estimated historical GS forcing only (blue bars). The black whiskers indicate the spread of trends of 17 climate change projections used in this study. The red whiskers indicate the 90% uncertainty range of observed trends, derived from control variability (206 nonoverlapping 30-year segments derived from 6,200-year control runs).