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    Double radar echoes in eastern Norway/western Sweden

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    • idefix37
      idefix37 Sailor Moderator @Vegard Ylvisåker last edited by

      @vegard-ylvisåker
      I can’t see these double echoes. Could you show a screenshot?

      9C7AC778-5A38-43CB-B1B8-C50C03C6CF13.jpeg

      1 Reply Last reply Reply Quote 0
      • V
        Vegard Ylvisåker last edited by

        Well, to be fair, your screenshot shows central Norway, and the problem lies in the south eastern part, around Oslo.

        There was supposed to be an image attached to my post, but apparently it hasn’t been uploaded. There is no rain in the are now, BUT - there are also pulsating false echoes in the same region, and these share the duplicate behaviour previously mentioned.

        Attaching two screenshots 6 min apart. You can see the duplicating pattern and also the pulsating strength of the echo. Even though it’s windy now, the echoes don’t move (and they’re always like this nowadays).

        Screenshots will come in a separate post. Can’t get it to work on my phone.

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        • V
          Vegard Ylvisåker last edited by

          ![0_1655160641686_IMG_2543.PNG](Uploading 15%) IMG_2542.jpg

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          • V
            Vegard Ylvisåker last edited by

            Ok, picky forum. Didn't want png files. But here we go:

            IMG_2543.jpg

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            • V
              Vegard Ylvisåker last edited by

              And since I found out the png thing; here is the original screenshot I wanted to post. You can recognize the fake echoes from previous images, but also some duplicated cells to the north and east.

              Screenshot.jpg

              Korina 1 Reply Last reply Reply Quote 0
              • Korina
                Korina Administrator @Vegard Ylvisåker last edited by

                @vegard-ylvisåker Hello, it could be some disturbance. Do you have other radar source for comparison?

                Korina

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                • V
                  Vegard Ylvisåker last edited by

                  Hi,

                  I found this site that reference radar data from the Norwegian Met. Institute, and the pulsating fake echoes are actually there. BUT - it seems as if the duplication lies somewhere else. The resolution is not very good, but at the centre of this area (around Røyken), there is a single high intensity blob on this map, but there are two of them in your map at the same time.

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

                    @vegard-ylvisåker
                    If the Norwegian Met Institute shows the same ‘double’ echoes, how can Windy fix them and change the data provided by this Institute?
                    I am not a radar specialist but I guess it is a problem of bad synchronisation of 2 radar sources which gives this blinking of the composite picture

                    V 1 Reply Last reply Reply Quote 1
                    • V
                      Vegard Ylvisåker @idefix37 last edited by

                      @idefix37 That’s kind of the opposite of what I was trying to say, but maybe it was awkwardly formulated. The duplication is not present in the raw data, but in the windy app. The pulsating fake echoes are present both places.

                      Korina 1 Reply Last reply Reply Quote 0
                      • Korina
                        Korina Administrator @Vegard Ylvisåker last edited by

                        @vegard-ylvisåker It is very unclear to recognise it, I personally do not see the duplication.

                        Korina

                        V 1 Reply Last reply Reply Quote 1
                        • V
                          Vegard Ylvisåker @Korina last edited by

                          @korina There is no doubt that the duplication occurs. My screenshot is not from the rainiest of days, but you can still clearly see the duplicate echoes. I’m on my phone now, so it doesn’t allow me to upload photos, but I have highlighted some of the “identical” parts for you.

                          As I was checking now however, there was a temporary fallout of one of the radar sources, and that made the duplicates to disappear. I compared it to the raw data, and the fallout was identical, but there is still no duplication there when that specific radar came back online.

                          This makes me think that there is some sort of offset on one of the radars in your system making the overlap of the different sources erroneous.

                          Korina 1 Reply Last reply Reply Quote 0
                          • Korina
                            Korina Administrator @Vegard Ylvisåker last edited by

                            @vegard-ylvisåker Hello, I was able to spot the duplication today. We will look into it.

                            Korina

                            Lars Erik Aalbu 1 Reply Last reply Reply Quote 0
                            • Lars Erik Aalbu
                              Lars Erik Aalbu @Korina last edited by

                              @korina FYI, I have been seeing the same the last couple of months. Same area.

                              Korina 1 Reply Last reply Reply Quote 0
                              • Korina
                                Korina Administrator @Lars Erik Aalbu last edited by

                                @lars-erik-aalbu Thank you, we will try to fix it.

                                Korina

                                V 1 Reply Last reply Reply Quote 0
                                • V
                                  Vegard Ylvisåker @Korina last edited by

                                  @korina Still double…

                                  Korina excubated 2 Replies Last reply Reply Quote 0
                                  • Korina
                                    Korina Administrator @Vegard Ylvisåker last edited by

                                    @vegard-ylvisåker It is on our to-do list.

                                    Korina

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                                    • excubated
                                      excubated @Vegard Ylvisåker last edited by

                                      @Korina Don't know if "i also have this problem" is useful, but yeah .. that. First noticed it a bit into the lightning season, so maybe 2 months ago. Haven't noticed any change back and forth, double images have persisted.

                                      Say the word if you want screenshots, and I'll hassle myself to convert from PNG like @Vegard-Ylvisåker did 🦊

                                      Korina 1 Reply Last reply Reply Quote 0
                                      • Korina
                                        Korina Administrator @excubated last edited by

                                        @excubated Hello, we are about to release an update, that will solve this double echoes issue.

                                        Korina

                                        V 1 Reply Last reply Reply Quote 0
                                        • V
                                          Vegard Ylvisåker @Korina last edited by

                                          @Korina I’m happy to report that the twins have disappeared and that the radar image is displayed correctly now. Thanks!

                                          Korina 1 Reply Last reply Reply Quote 1
                                          • Korina
                                            Korina Administrator @Vegard Ylvisåker last edited by

                                            @Vegard-Ylvisåker Happy to hear that! The update is out and echoes are not longer visible. @Lars-Erik-Aalbu @excubated

                                            Korina

                                            1 Reply Last reply Reply Quote 1
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