Mars Visual Albedo through a RED Filter

This image of Mars is from the Mars Orbiter Camera (MOC) on the Mars Global Surveyor (MGS) Spacecraft.
The image means the "Visual Brighness" of Mars, meaning how Mars would appear to the human eye through a red filter.

The mosaic is from a short time in 1999, when there was a significant dust storm in Hellas Basin (brigh spot on right side near bottom).
There is no data from the South Pole, because it was in total darkness at the time - and Mars' North Pole was pointed towards the Sun.