The Day Microphysics RGB

Information received from the three channels that contribute to the RGB combination

VIS 0.8 (visible channel 02) Surface reflectance (sand, snow), Cloud albedo
MIR 3.9 (mixed channel, but only solar part is included) Detection of ice clouds by the differences in particle size and reflectance properties between water and ice clouds, Fire detection
IR 10.8 (IR window channel) Temperature of surface/cloud top temperatures

Resulting colors for typical features

Red Thick precipitating cloud
Black brown Cirrus with thick crystals
Green Small ice crystals (often lee cloud)
Pink Snow and ice

Typical application areas

  • Convection
  • Fog and low cloud
  • Fire (contribution from channel 04)