Lunar Polar Cold Traps: Spatial Distribution and Temperatures

Details Lunar Polar Cold Traps: Spatial Distribution and Temperatures Lunar Polar Cold Traps: Spatial Distribution and Temperatures

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.4901p&link_type=abstract

American Astronomical Society, DPS meeting #38, #49.01; Bulletin of the American Astronomical Society, Vol. 38, p.575

Astronomy and Astrophysics

Astronomy

Scientific paper

We have developed a ray-tracing and radiosity model that can accurately calculate lunar surface and subsurface temperatures for arbitrary topography. Using available digital elevation models for the lunar north and south polar regions derived from Clementine laser altimeter and image data, as well as ground-based radar data, we have calculated lunar surface and subsurface temperatures at 2 km resolution that include full effects of indirect solar and infrared radiation due to topography. We compare our thermal model results with maps of epithermal neutron flux measured by Lunar Prospector. When we use the ray tracing and thermal model to account for the effects of temperature and topography on the neutron measurements, our results show that the majority of the moon's polar cold traps are not filled with water ice.

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