Colour-cod­ed to­po­graph­i­cal im­age map of the Ko­rolev Crater

Colour-coded topographical image map of the Korolev Crater
Colour-cod­ed to­po­graph­i­cal im­age map of the Ko­rolev Crater
Credit: ESA/DLR/FU Berlin - CC BY-SA 3.0 IGO

Colour-coded topographical image map of the Korolev Crater

Colour-cod­ed to­po­graph­i­cal im­age map of the Ko­rolev Crater: The im­age strips ac­quired from dif­fer­ent an­gles by the HRSC cam­era sys­tem on board Mars Ex­press are used to gen­er­ate dig­i­tal ter­rain mod­els of the Mar­tian sur­face, con­tain­ing height in­for­ma­tion for each record­ed pix­el. The ref­er­ence lev­el for the al­ti­tude in­for­ma­tion is Mars. The colour cod­ing of the dig­i­tal ter­rain mod­el (top right) in­di­cates the el­e­va­tion dif­fer­ences ef­fec­tive­ly: the to­po­graph­i­cal pro­file of the re­gion cov­ers ap­prox­i­mate­ly 3500 me­tres of el­e­va­tion. The rim of the 82-kilo­me­tre-wide Ko­rolev Crater tow­ers around 2000 me­tres above the sur­round­ings. The top of the glacier in­side the crater lies a few hun­dred me­tres be­low the crater rim. Due to sub­li­ma­tion, the 1800 me­tre-thick domed de­posit lies in a ring-shaped crater that is slight­ly more than two kilo­me­tres deep.

Colour-coded topographical image map of the Korolev Crater: The image strips acquired from different angles by the HRSC camera system on board Mars Express are used to generate digital terrain models of the Martian surface, containing height information for each recorded pixel. The reference level for the altitude information is Mars. The colour coding of the digital terrain model (top right) indicates the elevation differences effectively: the topographical profile of the region covers approximately 3500 metres of elevation. The rim of the 82-kilometre-wide Korolev Crater towers around 2000 metres above the surroundings. The top of the glacier inside the crater lies a few hundred metres below the crater rim. Due to sublimation, the 1800 metre-thick domed deposit lies in a ring-shaped crater that is slightly more than two kilometres deep.

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