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The lunar surface temperature real-time model

  • role： First author第一作者
  • Affiliation：

    National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China

  • Email：fengxuan@cma.gov.cn
Xuan FENG,  
  • Affiliation：

    National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China

Qiang GUO

résumé

Lunar surface temperature may be of interest in the radiometric calibration of space-based sensors. It is an essential parameter for exploring the Moon and a necessary boundary condition for studying lunar thermal evolution. This study presents a real-time model of lunar surface temperature based on the lunar surface temperature steady-state model of Racca. The effective solar irradiance can be calculated accurately and in real time. The proposed model can nearly accurately describe variations in Moon phases based on qualitative comparisons with lunar infrared images provided by the FY-2G satellite. A heat flow experiment provides the time series of the lunar surface temperature at the Apollo 15 landing site since the experiment started until its end in 1974. Result from the temperature model fits well with the measurement when the solar elevation angle is greater than zero. Furthermore, the differences between the calculated and measured temperature results are within ±1 K for the fifth day up to the tenth day since the elevation angle of the Sun is above the surface.

mots-clés

lunar surface;temperature;real-time model;radiometric calibration

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