Comments on: Endless ash fields on Mars https://behindtheblack.com/behind-the-black/points-of-information/endless-ash-fields-on-mars/ Thu, 11 Jan 2024 15:20:12 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Ray Van Dune https://behindtheblack.com/behind-the-black/points-of-information/endless-ash-fields-on-mars/#comment-1440478 Thu, 11 Jan 2024 15:20:12 +0000 https://behindtheblack.com/?p=101864#comment-1440478 I am aware that there are types of dunes that form with their long-axis parallel to the prevailing winds (“seif”), and perpendicular to it (“transverse”). According to your description, these would be seif. Not sure what causes one versus the other on Mars, or if there are multiple types on Mars?

]]> By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/endless-ash-fields-on-mars/#comment-1440416 Thu, 11 Jan 2024 04:09:26 +0000 https://behindtheblack.com/?p=101864#comment-1440416 In reply to Tom.

Tom: It should have been “northeast”. I have fixed it. Thank you.

]]> By: David M. Cook https://behindtheblack.com/behind-the-black/points-of-information/endless-ash-fields-on-mars/#comment-1440415 Thu, 11 Jan 2024 04:08:01 +0000 https://behindtheblack.com/?p=101864#comment-1440415 Tom, good catch! When I read it my mind saw “southeast”! My question is how tall are these dunes? How do they compare to the dunes of the Sahara, for example?

]]> By: Tom https://behindtheblack.com/behind-the-black/points-of-information/endless-ash-fields-on-mars/#comment-1440401 Wed, 10 Jan 2024 23:35:47 +0000 https://behindtheblack.com/?p=101864#comment-1440401 Bob,

Something is off here. You went west one too many times.
” with the prevailing winds appearing to consistently blow from the northwest to the southwest”

Regardless, it’s a fascinating landscape.

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