Physical State of the “bright” South Seasonal Polar Cap from Omega Observations
نویسندگان
چکیده
Doute, F. Schmidt, B. Schmitt, M. Vincendon, Y. Langevin, B. Gondet, Laboratoire de Planetologie de Grenoble Bat D de Physique B.P. 53 Grenoble Cedex 09 France [email protected], European Space Astronomy Centre (ESAC), P.O. Box Apdo. de correos 78, 28691 Villanueva de la Canada, Madrid, Spain, Department of Geological Sciences, Brown University, Providence, Rhode Island, 02912, U. S. A. , Institut d’Astrophysique Spatiale, CNRS / Universite Paris XI, Orsay Campus, 91405, France.
منابع مشابه
Retreat of the North Seasonal Cap of Mars Observed by Omega and Crism
Introduction: Seasonal caps play an important role for surface-atmosphere interactions on Mars, as they trap up to 25% of the atmosphere during winter. While seasonal caps are mainly constituted of CO2 ice, H2O ice and dust play an important role in their evolution. Spectral imaging observations in the near infrared provide unambiguous information on the composition of the seasonal caps as CO2 ...
متن کاملMars Polar Cap Edges Tracked over 4 Full Mars Years Using Mgs Tes
Introduction: The polar caps of Mars have been observed since 1666 [1]. In the late eighteenth century, Herschel [2] observed the advance and retreat of the polar caps, thus being one of the first observers of Mars' seasonal cycles. In more recent history, the polar caps have gained significance in that they are one of the driving forces of Martian climate, with approximately 25% to 30% of the ...
متن کاملDynamical implications of seasonal and spatial variations in Titan's stratospheric composition.
Titan's diverse inventory of photochemically produced gases can be used as tracers to probe atmospheric circulation. Since the arrival of the Cassini-Huygens mission in July 2004 it has been possible to map the seasonal and spatial variations of these compounds in great detail. Here, we use 3.5 years of data measured by the Cassini Composite InfraRed Spectrometer instrument to determine spatial...
متن کاملEvidence for Residual CO2 Frost
The first spacecraft observations of the south residual polar cap of Mars were obtained by the Mariner 9 orbiter during the Martian southern summer season, 1971-1972. Analyses of Viking orbiter observations obtained 3 Mars years later have shown that residual carbon dioxide frost was present at the south polar cap in 1977. In this study, Mariner 9 infrared interferometer spectrometer spectra an...
متن کاملSeasonal variations of polygonal thermal contraction crack patterns in a south polar trough, Mars
[1] We present observations of seasonal variations in polygonal crack patterns located in a polar trough on the south polar cap of Mars; previously, there was no direct observation showing that these patterns change. Polygonal patterns on Mars are attributed to thermal contraction cracking, which is commonly observed in periglacial environments on Earth. In this paper we discuss observations ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009