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IAC-13, D3,3.10x19180 Using Martian Climate Models to assess the Potential of Artificial Greenhouse Gases to increase Martian Surface Temperatures

机译:IAC-13,D3,3.10x19180采用火星气候模型评估人工温室气体的潜力,增加火星表面温度

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The study of planetary atmospheres such as the one of Mars offers valuable insights into the evolution and dynamics of atmospheres. The absence of oceans and a biosphere on Mars allows the development of simpler climate models compared to Earth's complex general circulation models. Recent improvements of Martian global climate models combined with new data obtained from Mars exploration missions allow for a better understanding of climate systems and their internal feedbacks effects. Martian climate models also provide a platform to explore theoretical options for active climate modifications such as ecopoiesis, defined as the fabrication of an uncontained biosphere on the surface of a sterile planet. Ecopoiesis on Mars would require several environmental modifications, such as changes in its atmospheric content and the increase of its surface temperature. Specifically, models have shown that a relatively modest temperature increase of 20 K might trigger a runaway release of CO_2 gas sequestered in the polar caps or trapped in the Martian regolith. Among the several methods reported to achieve such a change, the release of artificial greenhouse gases in the Martian atmosphere is considered as one possible approach. Based on previous preliminary research, this paper assesses the warming potential of four artificial greenhouse gases (CF_4, C_2F_6, C_3F_8 and SF_6) in a Martian Global Climate Model. A critical discussion of the warming effect of the released gases is hereby presented.
机译:关于马斯之一的行星大气的研究提供了对大气的演化和动态的宝贵见解。缺乏海洋和火星的生物圈,与地球复杂的一般循环模型相比,易于发展的气候模型。最近的Martian全球气候模型的改进与火星勘探任务获得的新数据相结合,可以更好地了解气候系统及其内部反馈效果。火星气候模型还提供了一个平台,探讨了有源气候修改的理论选择,如Ecopoiesis,定义为无菌星球表面的未经污染的生物圈的制造。 MARS上的Ecopoiesis需要几种环境修改,例如其大气含量的变化和其表面温度的增加。具体地,模型已经表明,20k的相对适度的温度升高可能会引发在极性帽中隔绝的CO_2气体的失控释放或被捕获在火星概芯上。在据报道的几种方法中,据报道实现这样的变化,在火星大气中的人造温室气体释放被认为是一种可能的方法。基于以前的初步研究,本文评估了火星全球气候模型中四个人造温室气体(CF_4,C_2F_6,C_3F_8和SF_6)的温暖潜力。由此提出了对释放气体的温暖效果的关键讨论。

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