Table 3 Measurement conditions during plume encounters of PSDs shown in Fig. 5

From: Fuel sulfur content can modulate contrail ice crystal numbers

 

Ultra-low-sulfur HEFA-SPK

Low-sulfur Jet A-1

Medium-sulfur blend fuel

Contrail age (s)

270

124

234

Ambient RHi (%)

94

94

95

ΔTSA (K)

−9.8

−9.6

−10.3

Δz (m)

−49

−10

−45