Interannual variability of water ice clouds over major martian volcanoes observed by MOC
- 作者：Jennifer L. Benson ; Philip B. James ; Bruce A. Cantor and Ryan Remigio
- 关键词：Mars ; Mars ; atmosphere
- 刊名：Icarus
- 出版年：2006
- 期刊代码：90_00191035
- 类别：ph
- 出版时间：October 2006
- 卷：184
- 期：2
- 页码：365-371
- 文件大小：556 K
摘要
Using Mars Global Surveyor Mars Orbiter Camera daily global maps, cloud areas have been measured daily for water ice clouds associated with the topography of the major volcanoes Olympus Mons, Ascraeus Mons, Pavonis Mons, Arsia Mons, Elysium Mons, and Alba Patera. This study expands on that of Benson et al. [Benson, J.L., Bonev, B.P., James, P.B., Shan, K.J., Cantor, B.A., Caplinger, M.A., 2003. Icarus 165, 34–52] by continuing their cloud area measurements of the Tharsis volcanoes, Olympus Mons and Alba Patera for an additional martian year (August 2001–May 2003) and by also including Elysium Mons measurements from March 1999 through May 2003. The seasonal trends in cloud activity established by Benson et al. [Benson, J.L., Bonev, B.P., James, P.B., Shan, K.J., Cantor, B.A., Caplinger, M.A., 2003. Icarus 165, 34–52] for the five volcanoes studied earlier are corroborated here with an additional year of coverage. For volcanoes other than Arsia Mons, interannual variations that could be associated with the large 2001 planet encircling dust storm are minimal. At Arsia Mons, where cloud activity was continuous in the first two years, clouds disappeared totally for 85° of e="mml23">e="text-decoration:none; color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6WGF-4KJDX27-1&_mathId=mml23&_user=10&_cdi=6821&_rdoc=9&_handle=V-WA-A-W-BU-MsSAYZA-UUW-U-AAZCABAWUZ-AAZWDAWUUZ-BEWCZCYW-BU-U&_acct=C000050221&_version=1&_userid=10&md5=42947eff35d8f9c2a9d6e1daee7b1be5" title="Click to view the MathML source">LS (e="mml24">e="text-decoration:none; color:black" href="/science?_ob=MathURL&_method=retrieve&_udi=B6WGF-4KJDX27-1&_mathId=mml24&_user=10&_cdi=6821&_rdoc=9&_handle=V-WA-A-W-BU-MsSAYZA-UUW-U-AAZCABAWUZ-AAZWDAWUUZ-BEWCZCYW-BU-U&_acct=C000050221&_version=1&_userid=10&md5=4158e5c1bab5aad0462358b48a055b1e" title="Click to view the MathML source">LS