RGB and Enhanced Channels

• Introduction
• Basic deas behind enhanced satellite images
• Basic idea behind RGBs
• The Natural Colour RGB
• The High Resolution VIS (HRVis) RGB
• The Airmass RGB
• The Dust RGB
• The Day Microphysics RGB
• The 24-hour Micorphysics RGB
• The Severe Storm RGB

The Severe Storm RGB

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

WV6.2 - WV 7.3 (difference of the two WV channels)	Information about moisture content in middle/upper layers of the troposphere
IR3.9 - IR10.8	High values of the green component for cold cloud tops, high reflectivity (small ice particles) for very cold cloud tops, and lower reflectivity (normal updraft)
NIR1.6 - VIS.0.6	Information about ice and/or water clouds

Resulting colors for typical features

Blue	Ocean/land
Red	Convective cloud: large ice particles
Yellow	Convective cloud: small ice particles

Typical application areas

• Convective cells
• Detection of severe storm centers