Navigation

    Windy Community

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

    Interpolation at Different Altitude

    General Discussion
    2
    4
    1542
    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.
    • G
      giganticvis last edited by

      Windy displays weather values at fixed altitudes, can the wind/temperatures/gusts values be interpolated for in-between altitudes? For eg, we can know the wind values at particular location at FL300 and FL340, can we use interpolation to calculate wind values at FL310,320 and 330?

      Gkikas LGPZ 1 Reply Last reply Reply Quote 0
      • Gkikas LGPZ
        Gkikas LGPZ Moderator @giganticvis last edited by

        @giganticvis
        I think "yes". Thats, also, the way models work!
        The "output" of this "manual" interpolation is very accurate for high altitudes (>FL100).
        At lower altitudes the situation is more complex due to landscape (geophysical turbulence).
        Actually the model outputs data at many levels (e.g. 137 levels for ECMWF) but the parameters (temp., wind etc) are given at certain pressure levels (e.g. 850hPa=FL050, 700hPa=FL100 etc).

        1 Reply Last reply Reply Quote 0
        • G
          giganticvis last edited by giganticvis

          @meteo-GR Which interpolation would give more accurate results? I mean linear, polynomial, spline interpolation or is any other type of interpolation is used specifically for weather?

          Gkikas LGPZ 1 Reply Last reply Reply Quote 0
          • Gkikas LGPZ
            Gkikas LGPZ Moderator @giganticvis last edited by

            @giganticvis
            I believe linear is OK, exept the levels around tropopause and jetstreams were there is a discontinuity in temp. and wind. For the height of tropopause and the location and height of jet streams you must consult a Significant Weather Chart http://www.flightwork.com/weather/significant-weather-charts.html

            1 Reply Last reply Reply Quote 0
            • 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