Loss of the Martian atmosphere to space: Present-day loss rates determined from MAVEN observations and integrated loss through time
Icarus(2018)
摘要
•MAVEN has observed the Martian upper atmosphere for a full Martian year, and has determined the rate of loss of gas to space and the driving processes; 1–2 kg/s of gas are being lost.•The loss rate extrapolated back in time gives an estimate of the total loss of gas to space and its impact on Martian climate history; an estimated 0.8 bars or more of CO2 likely has been lost.•Loss to space has been the major process driving climate change on Mars.
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关键词
Mars,Atmosphere,Solar wind,Mars atmosphere,Mars climate,Magnetospheres
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