Colour Interpretation Guide


cirrus clouds

date
Meteosat Second Generation

length
IR+HRVIS RGB

author
Red: HRVIS
Green: HRVIS
Blue: IR10.8

High Cirrus Clouds

Thin Cirrus clouds in the IR-HRVIS RGB depict in blue colours. The blue colour beam (IR10.8) prevails the HRVIS channel by far. Thin cirrus clouds do not reflect much short wave solar radiation, hence the red and green signals are weak. The blue colour beam from IR10.8 shows high values due to the cold cloud top temperature of cirrus clouds.