A Real-Time Model of the Seasonal Temperature of Lunar Polar Region and Data Validation

A small tilt in the spin axis of the moon over the ecliptic plane causes seasonal incidence variation of solar illumination and, especially, causes significant temperature difference at the polar region. In this article, following the position of the subsolar point, the real-time model of solar illu...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 2020-03, Vol.58 (3), p.1892-1903
Main Authors: Liu, Niutao, Jin, Ya-Qiu
Format: Article
Language:English
Subjects:
Brightness temperature
Chang’E (CE)
Conduction
Conduction heating
Conductive heat transfer
Data
Heat conduction
Illumination
infrared (IR) and microwave (MW) brightness temperature (TB)
Lighting
Lunar surface
Mathematical model
Moon
permanent shaded region (PSR)
Polar environments
Real time
Real-time systems
Regolith
seasonal temperature variation
Seasonal variation
Seasonal variations
Surface radiation temperature
Surface temperature
Surface topography
Temperature
Temperature differences
Temperature distribution
Temperature gradients
Temperature measurement
Thermal radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A small tilt in the spin axis of the moon over the ecliptic plane causes seasonal incidence variation of solar illumination and, especially, causes significant temperature difference at the polar region. In this article, following the position of the subsolar point, the real-time model of solar illumination incidence over the moon polar region is developed. Based on this model with solving the 1-D heat conduction equation, the seasonal temperature of the lunar surface is obtained and is in agreement with the Diviner infrared (IR) data. Meanwhile, using the fluctuation-dissipation theorem and the Wentzel-Kramers-Brillouin (WKB) approach for lunar regolith media, the seasonal microwave (MW) brightness temperature (TB) is also obtained and validated by Chang'e-2 (CE-2) 37-GHz TB data. These data also show that the lunar surface temperature and the MW TB even in the permanent shaded region (PSR) undergo seasonal variation as well. It might be due to the seasonal thermal radiation on the topographic PSR coming from the sunlit crater walls caused by seasonal temperature variation. The Diviner IR data show that the highest temperature in the Hermite-A crater at the north polar PSR can reach 109 K in summer.
ISSN:0196-2892
1558-0644
DOI:10.1109/TGRS.2019.2950300