Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions

Details Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jgre..11604009p&link_type=abstract

Journal of Geophysical Research, Volume 116, Issue E4, CiteID E04009

Physics

Atmospheric Processes: Clouds And Aerosols, Atmospheric Composition And Structure: Cloud Physics And Chemistry, Planetary Sciences: Solar System Objects: Mars, Planetary Sciences: Solid Surface Planets: Atmospheres (0343, 1060), Planetary Sciences: Solid Surface Planets: Ices

Scientific paper

Water ice clouds in the Martian atmosphere are governed by parameters such as number density and particle size distribution that in turn affect how they influence the climate. With some of the underlying properties of cloud formation well known only for Earth, extrapolations to Mars are potentially misleading. We report here continued laboratory experiments to identify critical onset conditions for water ice formation under Martian cloud forming temperatures and water partial pressures (155-182 K, 7.6 × 10-5 to 7.7 × 10-3 Pa H2O). By observing the 3 μm infrared band to monitor nucleation and growth, we observe significant temperature dependence in the nucleation of ice on JSC Mars-1 regolith simulant, with critical saturation ratios, Scrit, as high as 3.8 at 155 K. At temperatures below ˜180 K, ice nucleation on JSC Mars-1 requires significant supersaturation, potentially impacting the Martian hydrological cycle.

Affiliated with

Also associated with

No associations

Rating

Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water ice nucleation characteristics of JSC Mars-1 regolith simulant under simulated Martian atmospheric conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1362125