Environmental Engineering Reference
In-Depth Information
+ 1°C
+ 2°C
+ 3.5°C
FIGURE 5.15 Projected increase in heat wave duration index, in number of days per event. Defined after
Frich et al. (2002) and Tebaldi et al. (2006) as the longest period each year with at least 5 consecutive days
during which daily maximum temperature is at least 5°C higher than the climatological (1961-1990) aver-
age for that same calendar day. Projected changes are for 20-year periods during which mean global mean
temperature increased by 1°C, 2°C, and 3.5°C, respectively relative to the 1961-1979 average.
