9 votes

A new understanding of Mars is beginning to emerge, thanks to data from the first year of NASA's InSight lander mission

4 comments

  1. [3]
    insegnamante
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    Pretty interesting. I would have liked a little more explanation of why whirlwinds are great for subsurface seismic exploration. I can't imagine that a whirlwind would create enough vibrations or...

    Pretty interesting. I would have liked a little more explanation of why whirlwinds are great for subsurface seismic exploration. I can't imagine that a whirlwind would create enough vibrations or suction to affect the subsurface.

    2 votes
    1. Loire
      (edited )
      Link Parent
      You'd be surprised. I can't speak to why they mentioned whirlwinds specifically, but from my brief experience with geoseismic, winds are enough to cause noise in the seismometers by disturbing the...

      I can't imagine that a whirlwind would create enough vibrations or suction to affect the subsurface

      You'd be surprised. I can't speak to why they mentioned whirlwinds specifically, but from my brief experience with geoseismic, winds are enough to cause noise in the seismometers by disturbing the surface cover or even by pushing against against the surface itself. Remember these tools need to be ultra sensitive to capture small movements thousands of miles away and hundreds to thousands of feet underground.

      As a side note, while one seismometer on the surface is nice, an array of them would allow us to perform so much more science, including mapping the subsurface of Mars. Hopefully one day we can drop additional InSight clones in sequence across Elysium Planiti and get a new picture.

      3 votes
    2. Deimos
      (edited )
      Link Parent
      There's a lot more info overall on this page (but it's also a much more difficult read). Specifically, this section has more explanation of how they were able to combine some different...

      There's a lot more info overall on this page (but it's also a much more difficult read).

      Specifically, this section has more explanation of how they were able to combine some different observations to analyze the vortices: https://www.nature.com/articles/s41561-020-0544-y#Sec3

      2 votes