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Opik, E. J.

Publications and source records attributed to Opik, E. J..

35 records · Page 2
All sourcesNASA NTRSDOE OSTI
NASA NTRS1962

ATMOSPHERE AND SURFACE PROPERTIES OF MARS AND VENUS

From a critical study of the available evidence, the following conclusions regarding the surface properties of the two nearest planets are arrived at. Particular attention is given to controversial problems which have been weighed w-ith due consideration for all existing data.

VENUS ATMOSPHERE↗
NASA NTRS1962

SURFACE PROPERTIES OF THE MOON

Some of the surface properties of the moon, including an interpretation of surface markings, photometry and recent soviet observations

SPACE PHOTOGRAPHY↗
NASA NTRS1960

The Atmosphere and Haze of Mars

The 'blue haze' is an absorbing smoke, dark as soot in reflection, red in transmission. Its currently accepted explanation by pure scattering (omnidirectional or forward) is untenable, as it would either increase the surface brightness of fall to obscure the surface details. The limb darkening of Mars is mainly the results of absorption by the smoke. The opacity of the Martian atmosphere increases from the red toward the violet. The extinction by the Martian atmosphere is greater than that by the terrestrial at all wavelengths, but only about 20 per cent of the Martian extinction is due to scattering. Dollfus' polarimeteric estimate, corrected for self-absorption, corresponds to a martian atmospheric pressure of 87 mm Hg. The photochemical breakup of carbon dioxide and the escape of oxygen must lead to considerable concentrations of carbon monoxide in the martian atmosphere.

HAZE↗