Thermal effects of insolation propagation into the regoliths of airless bodies

Details Thermal effects of insolation propagation into the regoliths of airless bodies Thermal effects of insolation propagation into the regoliths of airless bodies

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72...84b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 72, Oct. 1987, p. 84-94.

Computer Science

58

Insolation, Planetary Temperature, Regolith, Satellite Surfaces, Thermal Analysis, Atmospheric Models, Energy Absorption, Reflectance, Surface Temperature, Planets, Thermal Effects, Insolation, Regolith, Surface, Models, Depth, Composition, Particles, Wavelengths, Optical Properties, Absorption, Io, Temperature, Diffusion, Opacity, Calculations, Parameters, Asteroids, Satellites, Jupiter, Saturn, Enceladus, Europa, Ganymede, Callisto

Scientific paper

The authors have investigated thermal models for planetary surfaces composed of particles that are bright and optically thin in the visual, and dark and opaque in the thermal infrared. The models incorporate the assumption that insolation is absorbed over a finite distance in the regolith, predicting lower daytime and higher nighttime temperatures than those predicted if the insolation were absorbed only at the surface. The magnitude of the effect depends on the scale length for absorption of insolation relative to the diurnal skin depth for thermal diffusion, and can be significant when insolation penetrates to a depth comparable to the diurnal skin depth.

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