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New model of Mars surface irradiation for the climate simulation chamber ‘Artificial Mars’

Published online by Cambridge University Press:  26 March 2013

M.V. Tarasashvili ,
Sh.A. Sabashvili ,
S.L. Tsereteli  and
N.G. Aleksidze
M.V. Tarasashvili
Affiliation:
Iv. Javakhishvili Tbilisi State University, 1 Chavchavadze Avenue, 0218, Tbilisi, Georgia e-mail: tsu.astrobiology@yahoo.com
Sh.A. Sabashvili
Affiliation:
Iv. Javakhishvili Tbilisi State University, 1 Chavchavadze Avenue, 0218, Tbilisi, Georgia e-mail: tsu.astrobiology@yahoo.com
S.L. Tsereteli
Affiliation:
Iv. Javakhishvili Tbilisi State University, 1 Chavchavadze Avenue, 0218, Tbilisi, Georgia e-mail: tsu.astrobiology@yahoo.com
N.G. Aleksidze
Affiliation:
Iv. Javakhishvili Tbilisi State University, 1 Chavchavadze Avenue, 0218, Tbilisi, Georgia e-mail: tsu.astrobiology@yahoo.com
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Abstract

A new model of the Mars surface irradiation has been developed for the imitation of radiation–temperature parameters within Mars Climate Simulation Chamber (MCSC). In order to determine the values of annual and diurnal variations of the irradiance on the Martian surface, the Solar illumination E has been expressed by the distance r between the Sun and Mars and the Sun's altitude z in the Martian sky, along with its midday zenith distance zmin. The arrangements of spring and autumn equinoxes as well as summer and winter solstice points in the Martian sky are discussed regarding the perihelion of Mars. Annual orbital points and variability of Solar zmin for different planetary latitudes have been calculated for the 15 selected values of Mars's true anomaly, along with the illumination E for 12 hourly moments of Martian daytime on the Martian equator. These original calculations and the data which have been obtained are used for the construction of technical tools imitating variations of the surface irradiation and temperature within MCSC, programming of the supporting computer and the electric scheme, which provide proper remote control and set the environmental parameters that are analogues to the 24 hours 39 minutes circadian cycle on planet Mars. Spectral distribution as monochromatic irradiance, humidity control, atmospheric composition and other environmental parameters of planet Mars are also imitated and remotely controlled within MCSC, however, are not discussed in this particular article.

Keywords

Mars chamberradiation environmentsurface illuminationspectral distributionzenital distance
Type
Research Article
Information
International Journal of Astrobiology , Volume 12 , Issue 2 , April 2013 , pp. 161 - 170
Copyright
Copyright © Cambridge University Press 2013

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