Terrain softening

The landscape polewards of around 30 degrees latitude on Mars has a distinctively different appearance to that nearer the equator, and is said to have undergone terrain softening . Softened terrain lacks the sharp ridge crests seen near the equator, and is instead smoothly rounded. This rounding is thought to be caused by high concentrations of water ice in soils. The term was coined in 1986 by Steve Squyres and Michael Carr from examining imagery from the Viking missions to Mars.

Page Revisions

Year	Metadata	Sections	Top Words	First Paragraph
2018	80797 characters 3 sections 12 paragraphs 10 images 652 internal links 0 external links	1. Contrast between softened and unsoftened terrain 2. See also 3. References	softening 0.296 creep 0.264 softened 0.254 crests 0.254 concentric 0.244 fill 0.237 sharp 0.177 carr 0.169 terrain 0.167 smoothly 0.159 rounded 0.152 squyres 0.151 unnamed 0.148 soils 0.148 crater 0.143	The landscape polewards of around 30 degrees latitude on Mars has a distinctively different appearance to that nearer the equator, and is said to have undergone terrain softening . Softened terrain lacks the sharp ridge crests seen near the equator, and is instead smoothly rounded. This rounding is thought to be caused by high concentrations of water ice in soils. The term was coined in 1986 by Steve Squyres and Michael Carr from examining imagery from the Viking missions to Mars.
2016	39498 characters 3 sections 12 paragraphs 13 images 160 internal links 0 external links	1. Contrast between softened and unsoftened terrain 2. See also 3. References	softening 0.296 creep 0.264 softened 0.254 crests 0.254 concentric 0.244 fill 0.237 sharp 0.177 carr 0.169 terrain 0.167 smoothly 0.159 rounded 0.152 squyres 0.151 unnamed 0.148 soils 0.148 crater 0.143	The landscape polewards of around 30 degrees latitude on Mars has a distinctively different appearance to that nearer the equator, and is said to have undergone terrain softening . Softened terrain lacks the sharp ridge crests seen near the equator, and is instead smoothly rounded. This rounding is thought to be caused by high concentrations of water ice in soils. The term was coined in 1986 by Steve Squyres and Michael Carr from examining imagery from the Viking missions to Mars.
2013	39503 characters 3 sections 12 paragraphs 13 images 160 internal links 0 external links	1. Contrast between softened and unsoftened terrain 2. See also 3. References	softening 0.296 creep 0.264 softened 0.254 crests 0.254 concentric 0.244 fill 0.237 sharp 0.177 carr 0.169 terrain 0.167 smoothly 0.159 rounded 0.152 squyres 0.151 unnamed 0.148 soils 0.148 crater 0.143	The landscape polewards of around 30 degrees latitude on Mars has a distinctively different appearance to that nearer the equator, and is said to have undergone terrain softening . Softened terrain lacks the sharp ridge crests seen near the equator, and is instead smoothly rounded. This rounding is thought to be caused by high concentrations of water ice in soils. The term was coined in 1986 by Steve Squyres and Michael Carr from examining imagery from the Viking missions to Mars.