Jim BELL #222

Letters to the Editor


from Jim BELL in CMO #222

@ . . . .Thank you for continuing to send copies of the Oriental Astronomical Association's "Communications in Mars Observations" (CMO) reports. I read with interest CMO 217 and 218, where some of your observers reported sighting evidence for the same or similar types of polar cyclone cloud activity in the Baltia region that was also seen in late April by HST.
  Several colleagues and I are studying the growth and evolution of these polar cyclones, both on Mars and here on Earth. I was wondering if I could request copies of the observations of polar cloud activity reported in late April by observers Murakami, Iwasaki, Ishadoh and Higa, along with any others. Are their images located online at the CMO web site? We are interested in learning more about the lifetimes of these polar storms. Specifically, did the large storm seen by HST on 27 April exist in the same form one or more days earlier, or did other storm systems come and go at the same location on a roughly diurnal timescale?
  Any additional insights that you or your observers could offer would be appreciated.
  Thanks, and best wishes to O.A.A. observers for continued success.
(12 Aug 1999 email)

Jim BELL (Cornell Univ. NY, USA) : jimbo@marswatch.tn.cornell.edu
Assistant Professor, Cornell University
Department of Astronomy
402 Space Sciences Building, Ithaca, NY 14853-6801
phone: 607-255-5911; fax: 607-255-9002
WWW: http://marswatch.tn.cornell.edu