Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pobeo..75..347g&link_type=abstract
Publications of the Astronomical Observatory of Belgrade (ISSN 0373-3742), No. 75, p. 347 - 354 (2003). In: Proceedings of the X
Astronomy and Astrophysics
Astronomy
History Of Astronomy, Mars
Scientific paper
The astronomic sensation of 1877, Schiaparelli's Canali, were a main research topic for 80 years (in a way they are it now again). Up to Mariner 4 (1965) many institutes believed in melted ice and periodic vegetation along the gray or green linear structures. Mars mapping reached a 2nd summit by Antoniadi, whose map 1936 was the basis of the US Mariner program. But ~1915 the shift from linear to area drawing caused some quality losses in planetography. In the fifties the Canali were mostly interpreted as optical illusions or contrast effects. The rivers and tectonics seen by Orbiters encouraged me to special studies: 60% of Schiaparelli channels correlate with: Albedo patterns, terrace-shadow structures, broad valley systems (e.g. Valles Marineris) and rows of craters or clouds. Experienced observers know that linear structures can be "seen" even if their elements are below the resolution. Feedback of this fact to space-born Remote Sensing is recommended - for maximal use of the modern planet Orbiters and special studies of geology, dust storms and clouds.
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