# Extended guide to the Cloud Type RGB

## Print Version

## Chapter VIII: Exercise

- Exercise

### Exercise

Exercise 1

Which of the following features are present in the numbered areas in Fig. 8.1?

Features
Cloud-free sea
Cloud-free land
Snow on mountains/hills
Water cloud above sea (moist atmosphere aloft)
Water cloud above land (moist atmosphere aloft)
Thick water clouds (dry atmosphere aloft)
Thin water clouds (dry atmosphere aloft)
Thin, high-level ice clouds above sea
Very thin high-level ice clouds above land
“Moderate” thin, high-level ice clouds above land
Numbers
1
11
3
4,12
5
6
7
8
9
2,10

Fig. 8.1: MTG FCI Cloud Type RGB, 18 March 2023, 11:50 UTC. The image is created from preliminary commissioning data. (Credit to EUMETSAT)

Exercise 2

Which cloud is higher? The cloud indicated by the black arrow, or the cloud indicated by the yellow arrow?

Fig. 8.2: MTG FCI Cloud Type RGB, 13 January 2024, 11:50 UTC. The images are created from preliminary commissioning data. (Credit to EUMETSAT)

If you wish, you can look at the components of this Cloud Type RGB here.

The higher cloud is indicated by:

Black arrow

Yellow arrow