Cooperative Observation Network: Mars in the 2005-2006 and 2007-2008 apparitions

Details Cooperative Observation Network: Mars in the 2005-2006 and 2007-2008 apparitions Cooperative Observation Network: Mars in the 2005-2006 and 2007-2008 apparitions

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p53c1467n&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #P53C-1467

Other

0850 Geoscience Education Research, 5445 Meteorology (3346), 5462 Polar Regions, 5494 Instruments And Techniques, 6225 Mars

Scientific paper

In our previous works, we reported Mars phenomena extracted from more than 7000 images obtained in the 2003 apparition by the professional-amateur cooperation networks (Nakakushi et al., 2004 and 2005, on Publ. Astron. Soc. Jpn.; Nakakushi et al., 2006 in the AGU Fall Meeting 2004). Here we report the results in the 2005--2006 and 2007--2008 apparitions. In both of the apparitions, many events were detected: recession of the south polar cap, the north and south polar hoods, orographic clouds, other water-ice clouds, and changes in albedo features probably due to dust storms. Flashing phenomenon was not detected. In addition to reports of those events, we focus in this paper on dust events and the north polar hood. We observed three large dust storms in 2005--2006, and two in 2007--2008. The north polar hood showed dual components of its longitudinally asymmetric form: the sun- synchronous asymmetry and the longitude-dependent asymmetry. This project has one more important purpose other than scientific research --- social science education. Amateur observers are waiting professional researchers to use their data in the up-to-date scientific studies. We intend to expand this project to other planets. In the near future, we plan to build a new planetary data archive center on the internet, which serves daily planetary images and links up professional and amateur observers.

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