Step 5: Review the Final Product

Dust RGB with color information for interpreting it

What are the dark line segments in the white box northwest of Morocco? (Choose the best answer.)

The correct answer is C.

These are contrails comprised of thin cirrus. The detection is based on one of the inputs (the 12.0-µm IR minus 10.8-µm IR difference), which enhances thin cirrus. This is an unexpected side benefit of the dust RGB.