Special Comparisons
Mars Unearthed
This is a collection of image comparisons consisting of simple gif and roll-over animations made from two or more images of the same terrain taken at different times. There are also several stereoscopic anaglyphs, red/cyan glasses required.

Spec_01 - Medusae Fossae Streaks - A heavy, localized outbreak of slope streaks. GIF animation.

Spec_02 - South Polar Crater Pattern - Unusual pattern on the floor of a sp crater. This pattern doesn't change over time even                                                                             though the surrounding terrain shows widespread seasonal changes. GIF animation.

Spec_03 - South Polar Defrosting Gullies - Dark streaks and spots on scarp face changing from season to season. Gif animation.

Spec_04 - Mars Global Warming - Evidence of global warming in the melting of the southern residual ice cap. Gif animation.

Spec_06 - Syria Planum Dust Devil - Track created by the passing of a large dust devil. Gif animation.

Spec_07 - South Polar Seasonal Patterns - Very unusual pattern changes from season to season in the south polar region. Gif                                                                                     animation.

Spec_08 - Claritas Fossae Cloud - Cloud of smoke or dust. Gif animation.

Spec_09 - Pedestal Crater Thaw - Changing frost patterns on a mound on the floor of a pedestal crater in the south polar region                                                                   with context images. Gif animation.

Spec_10 - Three Degree Ring Thaw - Seasonal changes near the three degree ring in the south polar region. Gif animations.

Spec_11 - Mars Global Warming 2 - More evidence of Mars' shrinking southern ice cap. Gif animations.

Spec _13 - Inca City Transition - Animation created from 5 MOC context images showing dramatic seasonal changes. Gif  animation.

Spec_14 - Sisyphi Cavi seasonal changes. Roll-over animations.
                   Sisyphi Cavi 1
                   Sisyphi Cavi 2
                   Sisyphi Cavi 3
                   Sisyphi Cavi 4

Spec_16 - North Polar Dunes - Frost patterns on unusual barchan dune formations. Roll-over animation.

Spec_17 - Galle Crater Tracks - Dust devil tracks fading over time with no new tracks formed. Roll-over animation.

Spec_18 - Russell Crater Tracks - Newly formed dust devil tracks. Roll-over animation.

Spec_20 - Amazonis Planitia Seep - Large slope streak that doesn't fade over time.

Spec_21 - Lycus Sulci Streaks - Massive newly formed slope streak. Roll-over animation.

Spec_22 - Cydonia Hex - Anaglyph of unusual hex-shaped landform. Red/blue glasses required.

Spec _23 - South Polar Ice Cap - More seasonal patterns in the residual ice cap. Roll-over animation.

Spec_24 - Alba Patera Plains - Surface albedo changes possibly caused by dust deposition. Roll-over animation.

Spec_25 - Noachis Crater - Multi image study of a crater from near 65 south that was originally thought might contain                                                      liquid.  Anaglyph, narrow angle, and wide angle images.

Spec_26 - South Polar Seasonal Patterns - More seasonal pattern changes. Roll-over animation.

Spec_27 - Richardson Crater Thaw - Slope streaks in the Richardson Crater dune field, 72.41 south. Roll-over animation.

Spec_28 - Amazonis Slope Streaks - New slope streaks in southwest Amazonis. (The shifting of surface features between images is an                                                                         illusion caused by the difference in emission angles). Roll-over animation and colorized image.


Spec_29 - South Polar Polygon Patterns - Images taken 21 months apart showing varying sublimation patterns on polygonal                                                                                  cracked terrain. Roll-over animation.

Spec_30 - North Polar Seasonal Patterns - Frost cover variations over a nine week period in a northern dune field. Roll-over                                                                                    animation.

Spec_31 - South Polar Gullies - Defrosting gullies at 70.71 south. Roll-over animation. To learn more, click here.

Spec_32 - Proctor Crater Frost - Changing frost patterns on massive dune field, at only 47.96 south. Roll-over
                                                               animation.

Spec_33 - Russell Crater Dune Field - Frost disappears revealing hundreds of dust devil tracks. Roll- over animation.

Spec_34 - Tharsis Surface Streaks - Surface streak pattern changes. Roll-over animation.

Spec_35 -  Mars Global Warming 3 - Image comparison revealing the continuing reduction of the south polar residual ice cap,                                                                        approximately 23 months between photos. Roll-over animation.

Spec_36 -  Chasma Boreale Dunes - North polar region comparison showing defrosting dunes, approximately 22 months between                                                                        images. Roll-over animation.

Spec_37 - Chasma Australe Mesas - Seasonal variations on thin mesas set into shallow depressions in the south polar region. Over                                                                        four years between images. Roll-over animation.

Spec_38 - North Polar Dune Field - Surface pattern changes in a north polar dune field. Roll-over animation.

Spec_39 - Lycus Sulci Streaks 2 - New slope streaks at 18.43 north near Olympus Mons. Roll-over animation.

Spec_40 - South Polar Defrosting Gullies 2 - Unusual defrosting gully patterns re-visited. Gif animation.

Spec_41 - Mars Global Warming 4 - More evidence of the "melting" of the south polar ice cap. Roll-over animation. New!

Spec_42 - South Polar Defrosting - Seasonal frost pattern changes in Mars' south polar region. New!

Spec_43 - Mars Global Warming 5 - Changes in the south polar residual ice cap, 3-3/4 years between images. New!


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