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首页> 美国政府科技报告 >GCM Recent History of Northern Martian Polar Layered Deposits: Contribution from Past Equatorail Ice Reservoirs
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GCM Recent History of Northern Martian Polar Layered Deposits: Contribution from Past Equatorail Ice Reservoirs

机译：GCm北部火星极地层状矿床的近期历史：过去的赤道地区冰库的贡献

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Our standard model suggests that most of the present Martian northern cap thickness does not come from the contribution of past equatorial ice reservoirs, but more likely from the poleward recession of northern icy high-latitude deposits during the intervals (0- 500 ka and around 2.5 Ma). This has to be compared to geological observations. However, other surface (South polar cap) or subsurface (regolith) ice reservoirs may have participated in its formation. Critical insolation values are also probably very sensitive to surface (polar albedo, thermal inertia) and atmospheric properties (atmospheric dust content, CO2 pressure..) and must be investigated in details. This could significantly changes the surface ice reservoirs history.

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