Reviewing the Products, Part 1
Click the tabs to view the water vapour, night microphysics, fog, and CLAI products for 00 UTC 20 July 2012. Note that there is a question below each product. Answer it before moving on to the next tab!
Water Vapour
The water vapour image shows: (Select the correct option.)
The correct answer is B.
Now scroll up and select the Night Microphysics tab.
Night Microphysics RGB
The night microphysics RGB shows: (Select the correct option.)
The correct answer is A.
Now scroll up and select the IR Fog Product tab.
IR Fog Product
The IR fog product shows: (Select all that apply.)
The correct answers are A and B.
Now scroll up and select the CLAI tab.
CLAI
Over Nairobi, the CLAI product shows: (Select the correct option.)
The correct answer is B.
The satellite products support what was seen in the soundings - clear skies above the stratus deck. The dark grey colour in the water vapor imagery indicates that the middle troposphere is relatively dry. These conditions promote radiative cooling and deepening of the stratus layer, and support the development of radiation fog. Note that fog itself cannot be detected on water vapour images. Stratus is evident just east of Nairobi in the light yellow area seen in the microphysics RGB, and in the dark areas in the fog product. The pink areas in the CLAI product are the lowest cloud layers but we cannot determine whether the clouds are actually fog or low stratus.