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Constraining the Potential Liquid Water Environment at Gale Crater, Mars
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2018
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Source: Journal of Geophysical Research: Planets, 123(5), 1156-1167
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Journal Title:Journal of Geophysical Research: Planets
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Description:The Mars Science Laboratory (MSL) Rover Environmental Monitoring Station (REMS) has nowmadecontinuousinsitumeteorologicalmeasurementsforseveralMartianyearsatGalecrater,Mars.OfimportanceinthesearchforliquidformationareREMS’measurementsofgroundtemperatureandin-air measurementsoftemperatureandrelativehumidity, whichiswithrespecttoice.Suchdatacanconstrain the surface and subsurface stability of brines. Here we use updated calibrations to REMS data andconsistentrelativehumiditycomparisons(i.e.,withrespecttoliquidversuswithrespecttoice)toinvestigate thepotentialformationofsurfaceandsubsurfaceliquidsthroughoutMSL’straverse.Wespecificallystudy thepotentialforthedeliquescenceofcalciumperchlorate.Ourdataanalysissuggeststhatsurfacebrineformation is not favored within the first 1648 sols as there are only two times (sols 1232 and 1311) when humidity-temperature conditions were within error consistent with a liquid phase. On the
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Source:Journal of Geophysical Research: Planets, 123(5), 1156-1167
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ISSN:2169-9097;2169-9100;
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Rights Information:Other
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Compliance:Library
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