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Mars is the fourth planet from the Sun. ... The total elevation change from the plains of Amazonis Planitia, over 1,000 km (620 mi) to the northwest, ...
On Earth, the zero elevation datum is based on sea level (the geoid). Since Mars has no oceans and hence no 'sea level', it is convenient to define an arbitrary zero-elevation level or "vertical datum" for mapping the surface, called areoid. [9] The datum for Mars was defined initially in terms of a constant atmospheric pressure.
Listed are the elevations of the peaks (the vertical position relative to the areoid, which is the Martian vertical datum — the surface defined as zero elevation by average martian atmospheric pressure and planet radius), which is not the height above the surrounding terrain (topographic prominence). Listed mons elevation is the highest point ...
The most conspicuous feature of Mars is a sharp contrast, known as the Martian dichotomy, between the Southern and the Northern hemispheres.The two hemispheres' geography differ in elevation by 1 to 3 km.
Olympus Mons (/ ə ˌ l ɪ m p ə s ˈ m ɒ n z, oʊ-/; [4] Latin for 'Mount Olympus') is a large shield volcano on Mars.It is over 21.9 km (13.6 mi; 72,000 ft) high as measured by the Mars Orbiter Laser Altimeter (MOLA), [5] about 2.5 times the elevation of Mount Everest above sea level.
Elevation map centered on Orcus Patera. MOLA elevation map from the Mars Global Surveyor Mars orbiter. Orcus Patera is a region on the surface of the planet Mars first photographed by Mariner 4. Of unknown formation, whether by volcanic, tectonic, or cratering causes, the region includes a depression about 380 kilometres (240 miles) long, 140 ...
Ascraeus Mons is roughly 480 km in diameter [1] and is the second highest mountain on Mars, with a summit elevation of 18.1 km. The volcano has a very low profile with an average flank slope of 7°. [ 5 ]
4.6 km on north face, 3.6 km on south face; [n 4] highest elevation (8.8 km) above sea level, as well as by wet and dry prominence (but not among the tallest from base to peak, and in distance to Earth's center Mt Chimborazo rises highest). Moon [n 5] Mons Huygens: 5.3 km (3.3 mi) [19] 0.31: impact: Formed by the Imbrium impact. Mons Mouton