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    The influence of topography on wind

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    • Gkikas LGPZG
      Gkikas LGPZ Moderator
      last edited by

      Today, strong north winds blow over Aegean Sea.
      The air flow is blocked by Crete island.
      Weather models show different wind patterns as the wind is blocked by the
      three main mountains of Crete.
      It's obvious that ICON and ECMWF represent more realistic the situation
      although NEMS has (?) better resolution.
      0_1516884281927_0ef88b92-1eac-42fd-9c74-740a7ff7bb1c-εικόνα.png

      idefix37I 1 Reply Last reply Reply Quote 4
      • TZT
        TZ Administrator
        last edited by

        @meteo-GR Thank you! Yes, it is strange that NEMS have the best resolution, but the wind pattern shows the mountains only slightly.
        The right picture should be GFS, am I right?

        idefix37I Gkikas LGPZG 3 Replies Last reply Reply Quote 1
        • idefix37I
          idefix37 Sailor Moderator @Gkikas LGPZ
          last edited by

          @meteo-gr
          Nice pictures which show sharper images from the best resolution models.
          I have observed like you that NEMS seems to provide maps with an apparent worse resolution compared to ICON and even ECMWF despite a resolution of 4km. But I have understood too that NEMS on Windy is a « multimodel » with a range of resolution. On Windy, in quick menu, if you click on «About these data» NEMS resolution is 4-12km. Difficult to know when it’s 4 and when it’s 12.
          The title of your last screen shot should be GFS but not ICON, am I right?

          Gkikas LGPZG 1 Reply Last reply Reply Quote 1
          • idefix37I
            idefix37 Sailor Moderator @TZ
            last edited by

            @tz
            Sorry I have discover your message after I send my own message !!

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

              @tz
              Yes you are! My mistake! (copy-paste).
              Under the webcams symbol
              GFS is highlighted.

              1 Reply Last reply Reply Quote 0
              • Gkikas LGPZG
                Gkikas LGPZ Moderator @idefix37
                last edited by

                @idefix37
                Yes (GFS instead of ICON far right).

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

                  @tz
                  NEMS4 stops just out of Crete.
                  So, the winds over Crete come from NEMS12
                  https://screenshots.firefox.com/wB1DC37ZntNs4nYQ/www.meteoblue.com

                  Gkikas LGPZG 1 Reply Last reply Reply Quote 2
                  • Gkikas LGPZG
                    Gkikas LGPZ Moderator @Gkikas LGPZ
                    last edited by

                    0_1516896979019_28c535a8-d3d5-4714-9bf0-6a7cdac0fd0e-εικόνα.png

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

                      ...so, the first image (with the 4 model's outputs)
                      show the differences of 7, 9, 12 and 22 km model's grid.

                      1 Reply Last reply Reply Quote 2
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