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    New model on Windy: ICON vs. COSMO-EU vs. COSMO-DE

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    • ivoI
      ivo Administrator
      last edited by ivo

      Hi all Meteorologists here

      We are about to add new forecast model to Windy and we are currently deciding which one of these: ICON, COSMO-EU or COSMO-DE could have biggest quality advantage over ECMWF (do not worry, we do not plan to remove ECMWF).

      Since we are serving million of users, our backend systems are scaled for maximum performance. Therefore adding new model in no easy and we must consider all the aspects (including limited space of User Interface) associated with it.

      If there is someone, who is heavy user of these three models, please give us a hint, which one should be implement as the first one.

      ICON

      COSMO-EU

      COSMO-DE

      Ivo

      Gkikas LGPZG J 2 Replies Last reply Reply Quote 5
      • Gkikas LGPZG
        Gkikas LGPZ Moderator @ivo
        last edited by

        @ivo
        I "vote" for COSMO-EU, for the following reasons:

        a) My area of interest is Europe.
        b) Is a non-hydrostatic model (ECMWF is hydrostatic), with a small grid 97 km) and includes a detailed landscape. Is good for local phenomena (land / sea breeze, channelling of the wind in valleys, local rains due to mountains).
        c) The prognostic variables provided in 1 hour timestep (up to 3 days).
        d) COSMO-DE is very high resolution model (2.8 km grid) but includes only the area of Germany.
        e) ICON is a global model, but ... if you have a Ferrari (ECMWF) you don't need a Porsche !

        Gkikas LGPZG ivoI 2 Replies Last reply Reply Quote 3
        • Gkikas LGPZG
          Gkikas LGPZ Moderator @Gkikas LGPZ
          last edited by

          I correct: COSMO-EU has a 7 km grid.

          1 Reply Last reply Reply Quote 0
          • ivoI
            ivo Administrator @Gkikas LGPZ
            last edited by

            @meteo-gr Yep most people vote for COSMO-EU

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

              @ivo
              RMS error of mean sea level pressure in the N. hemisphere
              for ECMWF and DWD
              https://screenshots.firefox.com/L3o4fE3IpoaG35Zd/apps.ecmwf.int

              ivoI 1 Reply Last reply Reply Quote 0
              • ivoI
                ivo Administrator @Gkikas LGPZ
                last edited by

                @meteo-gr Yep DWD but which model?

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

                  @ivo
                  the screenshot comes from
                  https://software.ecmwf.int/wiki/pages/viewpage.action?pageId=24316358

                  According to this:
                  https://screenshots.firefox.com/NRoZ4JFaOALpax2H/www.ecmwf.int
                  DWD's global model is ICON

                  1 Reply Last reply Reply Quote 0
                  • J
                    Jaggergege @ivo
                    last edited by

                    @ivo I absolutely love you app. It help me tell my sister to get out of Tampa before the news told them to evacuate for Irma. Thank you!!!

                    1 Reply Last reply Reply Quote 0
                    • Tomber42T
                      Tomber42 Moderator
                      last edited by Tomber42

                      I think windy team has read my suggestion https://community.windy.com/post/7000 :) Thx..

                      Greetings from Tomber

                      1 Reply Last reply Reply Quote 1
                      • Tomber42T
                        Tomber42 Moderator
                        last edited by Tomber42

                        Cosmo-EU is no longer available sice 1.12.2016, see https://www.dwd.de/DE/leistungen/nwv_cosmo_eu_modelldokumentation/nwv_cosmo_eu_modelldokumentation.html (unfourtunally german language)

                        it was replaced with ICON-EU https://www.dwd.de/EN/ourservices/nwp_forecast_data/nwp_forecast_data.html

                        Greetings from Tomber

                        ivoI 1 Reply Last reply Reply Quote 0
                        • ivoI
                          ivo Administrator @Tomber42
                          last edited by

                          @tomber42 Thomas it seems that ICON-EU is nested inside ICON, so we can download just one set of GRIB files and we have both. Am I correct?

                          Are you from DWD? Would be nice to have some insider for help.

                          Tomber42T 1 Reply Last reply Reply Quote 0
                          • Tomber42T
                            Tomber42 Moderator @ivo
                            last edited by Tomber42

                            @ivo no, I'm not a dwd employee. But you can see what you can get here https://www.dwd.de/DE/leistungen/opendata/help/inhalt_allgemein/opendata_content_de_en_pdf.pdf?__blob=publicationFile

                            And there icon and icon EU are different data sets (with different update intervals)

                            And, as you can see, the WAM global and Europe Models are included now (bottom of document), don't know exactly what this is but it seems to include forecast about waves and swell, interesting for water sport I think

                            Greetings from Tomber

                            1 Reply Last reply Reply Quote 0
                            • Tomber42T
                              Tomber42 Moderator
                              last edited by

                              Do you have decided which model you will add first?

                              Greetings from Tomber

                              1 Reply Last reply Reply Quote 0
                              • ivoI
                                ivo Administrator
                                last edited by

                                It will be ICON-EU

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

                                  @ivo
                                  Do you plan to add it to Windy as a X-mas gift?

                                  1 Reply Last reply Reply Quote 1
                                  • TheRadarGuyT
                                    TheRadarGuy Moderator
                                    last edited by

                                    I have to say, I am very excited to use the new ICON-EU (Former COSMO-EU). Especially because I am going to Europe on two separate trips next year. I will probably use this a lot over there.

                                    1 Reply Last reply Reply Quote 1
                                    • ivoI
                                      ivo Administrator
                                      last edited by

                                      So far ECMWF rocks over EU a probably also worldwide. But we will see how ICON will look

                                      1 Reply Last reply Reply Quote 2
                                      • G
                                        galvin | Premium
                                        last edited by

                                        ICON certainly the best in future ...(isocahedric model!)
                                        thanks ! your job is very interisting and fine !

                                        1 Reply Last reply Reply Quote 1
                                        • LRG-MitgliedL
                                          LRG-Mitglied
                                          last edited by

                                          ICON (EU) has a good performance, especially in coastal regions. Would be great to have it on windy.com.

                                          Is the implementation already scheduled?

                                          ivoI 1 Reply Last reply Reply Quote 0
                                          • ivoI
                                            ivo Administrator
                                            last edited by

                                            Backed is finished thx to @dzuremar . Now we have to implement it to the client

                                            1 Reply Last reply Reply Quote 2
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