Planet Four Talk

Fans making a turn

  • plydk by plydk

    Just wander if anybody else have found these special fans that seems to make a turn to the right or left. Do anybody have an explanation for this like have the wind suddenly changed direction?
    (ex. APF00014em)

    Posted

  • Kitharode by Kitharode moderator

    Hi there plydk. Yes, you have it right. The wind does sometimes change direction so you will find these sorts of images turning up quite often. Here's a couple from my collection:

    http://planetfour.org/subjects/standard/50e740015e2ed211dc001bc9.jpg

    http://planetfour.org/subjects/standard/50e742935e2ed211dc0029d4.jpg

    Good hunting. Kitharode.

    Posted

  • wassock by wassock moderator

    The nature of these fans, as seen in Kitharodes examples, indicates that the emission of the dust can be a shortlived phenomenon repeated at intervals. If it was continuous we'd see a broad fans (as can be seen in places) created as the wind changed direction while the dust was erupting.

    Posted

  • plydk by plydk

    Thanks for confirming.

    I'm new to all this classifying but I find it very interresting and I am amazed how many structures and patterns I see 😃

    Posted

  • Kitharode by Kitharode moderator

    Wassock's 'Bendy Winds' is worth a look if you haven't already seen it:

    http://talk.planetfour.org/#/boards/BPF0000009/discussions/DPF0000cp7

    Posted