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Träfflista för sökning "WFRF:(Zanetti A) srt2:(2005-2009)"

Sökning: WFRF:(Zanetti A) > (2005-2009)

  • Resultat 1-6 av 6
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  • Hauber, Ernst, et al. (författare)
  • MORPHOMETRY OF ALLUVIAL FANS IN A POLAR DESERT (SVALBARD, NORWAY): IMPLICATIONS FOR INTERPRETING MARTIAN FANS.
  • 2009
  • Ingår i: 40th Lunar and Planetary Science Conference. ; :1648
  • Konferensbidrag (refereegranskat)abstract
    • Alluvial fan-like landforms have been identified on Mars. Since alluvial fans are recorders of processes that are sensitive to climatic conditions, the investigation of possible Martian fans can reveal information about the planet`s climate. In lieu of direct observations of active depositional processes on Martian fans, comparisons with terrestrial analogues can constrain models of Martian fan formation derived from remote sensing data. Since present-day Mars is cold and dry, alluvial fans formed in cold deserts should be considered as useful analogues. The probably closest climatic analogue to Mars on Earth are the Antarctic Dry Valleys , but polar deserts can also be found in the Arctic. We report on our field work in summer 2008 and a simultaneous flight campaign with an airborne version (HRSC-AX) of the High Resolution Stereo Camera (HRSC) onboard Mars Express. The results are compared with measurements of Martian fans, based on HRSC DEM.
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  • Hauber, Ernst, et al. (författare)
  • Svalbard (Norway) as a terrestrial analogue for Martian landforms: Results on
  • 2009
  • Ingår i: EPSC Abstracts. European Planetary Science Congress. ; 4, EPSC2009-772
  • Konferensbidrag (refereegranskat)abstract
    • Small alluvial fan-like landforms have been observed on Mars in association with recent gullies. Such fans are relatively small (km-scale) when compared to large alluvial fans on Mars, which can reach dimensions of tens of kilometers. The small fans are part of an erosion-transportsedimentation system (alcove-channel-apron). Morphologically very similar systems can be studied on Svalbard (Norway), which is a cold and dry polar desert and, therefore, a potentially useful terrestrial analogue for Mars` climate and climaterelated landforms. Here we give an update on our field work in summer 2008 and a simultaneous flight campaign with an airborne version (HRSCAX) of the High Resolution Stereo Camera (HRSC) onboard Mars Express. We also present very preliminary results from the field campaign in summer 2009.
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  • Reiss, Dennis, et al. (författare)
  • MORPHOLOGIC AND MORPHOMETRIC COMPARISION OF GULLIES ON SVALBARD AND MARS.
  • 2009
  • Ingår i: 40th Lunar and Planetary Science Conference. ; :2362
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The morphology of gullies on Mars indi-cates that they were formed by the action of water. How-ever, it is not clear what the dominant gully forming process is. On Earth, gullies might have formed by the processes of overland flow or debris flows, or a combination of both. In this work we compare the morphologic and morphometric observations and measurements (slopes, depth-width ratios and sinuosities) of Martian gullies with terrestrial analogs from Svalbard, Norway, in order to constrain the formation process (fluvial and/or debris flow).
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  • Resultat 1-6 av 6

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