Kuhn W R, Atreya S K
J Mol Evol. 1979 Dec;14(1-3):57-64. doi: 10.1007/BF01732367.
Calculations indicate that the maximum daily solar radiation reaching the Martian surface is about 325 cal/cm2 during southern hemisphere summer at latitude of about 40 degrees S. In the ultraviolet region of the spectrum, the radiation reaching the surface at wavelengths greater than 2800 A is within 10% of the radiation incident on the atmosphere. There is significant extinction of radiation in the spectral region near 2500 A in mid and high latitudes due to adsorption of radiation by ozone; radiation reaching the surface may be reduced to one one-thousandth of that incident on the atmosphere during winter. Virtually no radiation of wavelengths less than 1900 A reaches the surface because of absorption by the large column abundance of carbon dioxide. Daily and latitudinal distributions of radiation are presented for wavelengths of 3000, 2500 and 2000 A.
计算表明，在南半球夏季，南纬约40度处到达火星表面的每日最大太阳辐射约为325卡/平方厘米。在光谱的紫外线区域，波长大于2800埃时到达表面的辐射量是入射到大气中辐射量的10%以内。由于臭氧对辐射的吸收，中高纬度地区在2500埃附近的光谱区域存在显著的辐射消光现象；冬季到达表面的辐射可能会减少到入射到大气中辐射量的千分之一。实际上，由于大量二氧化碳柱体的吸收，波长小于1900埃的辐射几乎没有到达表面。给出了波长为3000埃、2500埃和2000埃时辐射的日分布和纬度分布情况。
