Windy Community

    • Register
    • Login
    • Search
    • Unread
    • Categories
    • Groups
    • Go to windy.com

    Southern Annular Mode (SAM), also known as the Antarctic Oscillation (AAO)

    Your Feedback and Suggestions
    2
    2
    202
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • anthony10
      anthony10 | Premium last edited by

      Hi Windy Team,

      I have a forecast item I'd like to suggest be add to the Windy toolkit.

      This would be for the southern hemisphere weather community obversely.

      I'd like to see the forecast tool for the Antarctic Oscillation (AAO), which is produced by NOAA.

      https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml

      It would be great to see Windy's animation show the movement of the Antarctic Oscillation.

      I'd love to know if it's possible to add these forecast or am I just wishful thinking?

      LOVE WINDY! :)

      idefix37 1 Reply Last reply Reply Quote 0
      • idefix37
        idefix37 Sailor Moderator @anthony10 last edited by idefix37

        @anthony10
        Hi,
        The Antarctic Oscillation is a statistical index about the position of the Southern Annular Mode. According to this article, " the Southern Annular Mode (SAM) is defined as a belt of westerly winds or low pressure surrounding Antarctica which moves north or south... ". It seems to me that you can already see the position of this belt of westerly winds using the Wind layer of Windy at 500 hPa together with Geopotential heights:

        DB9F5FE8-8FF8-466D-925A-060F2337F315.jpeg
        With customized colors

        And also the low pressure shown here in blue, together with Isobars:

        B1C7AF08-05C3-4AC2-91F4-23074874F19A.jpeg
        With customized colors

        Additional information about SAM for those who don’t live « down under ».:
        http://www.bom.gov.au/climate/sam/

        Concerning the AAO index, this a statistical index about the position of the SAM, shown as a graphic along several months or years. There are several of these types of index in different parts of the world such as MJO, IOD, ENSO, AO, NAO... and I don’t think that this kind of graphics are in the target of Windy.

        1 Reply Last reply Reply Quote 1
        • First post
          Last post
        Windyty, S.E. - all rights reserved. Powered by excellent NodeBB
        NodeBB & contributors, OSM & contributors, HERE maps
        Terms and Conditions     Privacy Policy