Figure 3-23: Persistent contrail coverage (in % area
cover) based on meteorological analysis data and on fuel emission database
for 2050 (Fa1 fuel consumption scenario for 2050), assuming linear dependence
on fuel consumption and overall efficiency of propulsion h of 0.5; global
mean cover is 0.5%. Compare with Figure 3-16 (from
Gierens et al., 1998).