Vapor pressure above ice at temperatures below 170 K

Details Vapor pressure above ice at temperatures below 170 K Vapor pressure above ice at temperatures below 170 K

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30c..21m&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 3, pp. 21-1, CiteID 1121, DOI 10.1029/2002GL016183

Physics

14

Atmospheric Composition And Structure: Cloud Physics And Chemistry, Planetology: Solar System Objects: Comets, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Planetology: Comets And Small Bodies: Ice

Scientific paper

Ice clouds in the earth's atmosphere and the presence of ices in comets and on planetary surfaces have raised the interest in the formation and existence of ice particles and of ice in bulk matter. Of special importance are the saturated vapor pressures well below 200 K. Marti and Mauersberger [1993] published a simple, experimentally derived equation that covers the temperature range from 273 to 170 K. Measurements have been extended toward 165 K and they show a clear departure in saturated vapor pressures when compared to a single-fit Clausius-Clapeyron expression over the entire temperature range. The equation derived for temperatures below169 K, log P = -3059/T + 14.88 (P in Pa and T in K), is significant for extrapolations of ice vapor pressures to temperatures in the mesosphere where clouds form well below 160 K.

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