Post on 21-Dec-2015
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Clouds: visible
• Clouds appear bright
• Thicker clouds are brighter (greater optical depth)
• Clouds with more water (or ice) content are brighter
Using IR
• Temperature– Related to height
• Change in temperature– Related to change in height
• Shape
Lots of clouds
• Fronts have all kinds of clouds and we can compare the Vis and IR to tell one from the other
• Low Sc are dark on the IR but fairly bright on the Vis
• Ci are bright (cold) on the IR, but less distinctive on the Vis
More info
• Lots more detail on the Vis – higher resolution
• Vis has good contrast between cloud and sea, while IR has contrast between cloud and land (at the time of year shown in particular)
• And there was Ac in there too