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    How can I access historical data?

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    • A
      anibarphe @YASA AION
      last edited by

      @yasa-aion hello sir...Hope you are doing well.. Please can you help me for how to access historical as well as forecast data from Windy.com... Thank you

      rhcaveR 1 Reply Last reply Reply Quote 0
      • F
        Flips
        last edited by

        Hello.
        Is it possible to get historical data from the Chernobyl disaster (25. April 1986 to 28. April 1986)?

        I have a project about the Chernobyl disaster. Showing the wind animation from the date will help me a lot.

        If there's historical data from the Chernobyl disaster, that I can have access to, please send a message to me on:
        sigurdemde@gmail.com

        Cheers!

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

          @flips
          what about


          or

          where you can see radioactive cloud driven by prevailing winds.

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

            ... official data
            http://www.irsn.fr/EN/publications/thematic-safety/chernobyl/Pages/The-Chernobyl-Plume.aspx

            F 1 Reply Last reply Reply Quote 0
            • F
              Flips @Gkikas LGPZ
              last edited by

              @meteo-gr
              Thank for the help. But do you know a website where I can see a wind animation of the Chernobyl disaster?
              The ones you've sent is the radioactivity that has spread all over Europe, but I would also like to get a map over the wind, such as Windy.com's design

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

                @flips
                Here you can find some archived data.
                http://www.wetterzentrale.de/reanalysis.php?map=1&model=noaa&var=3&jaar=1986&maand=04&dag=25&uur=1200&h=0&tr=360&nmaps=24#mapref

                Note: I sent you the "radioactivity animation" as it takes into account many wind fields (for many days and in many levels).

                1 Reply Last reply Reply Quote 1
                • R
                  Renaissance丶
                  last edited by

                  What a pity!I would like to have accessed some historical data for my PowerPoint about meteorology. Well, I will still support Windy.

                  1 Reply Last reply Reply Quote 0
                  • J
                    jakob888
                    last edited by

                    @ivo
                    I need a data for the last year for my location, I need data for wind speed for every hour. where can I found it?
                    my location is Hengelo, Overijssel, Netherland.
                    Or can you send it to me?
                    this is my email jakob19888@gmail.com

                    Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                    • Gkikas LGPZG
                      Gkikas LGPZ Moderator @jakob888
                      last edited by

                      @jakob888
                      If you are interested in official data, you have to contact:
                      https://www.knmi.nl/over-het-knmi/how-to-contact-knmi

                      As I can see, nearby there is the Twenthe Airport.
                      At the airport (location indicator EHTW) there is a meteorological station
                      and (I believe) people there can provide you data needed.
                      Also you can search the internet for actual weather data for met. station
                      Twenthe Airport, EHTW in various sites
                      e.g. https://weatherspark.com/y/148062/Average-Weather-at-Twenthe-Airport-Netherlands-Year-Round

                      Also, you can download the data from Twenthe Automatic Weather Station, here
                      http://www.meteomanz.com/sy5?l=1&ind=06290&m1=01&y1=2017

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

                        ...http://www.meteomanz.com/sy1?ty=hp&l=1&cou=6090&ind=06290&d1=01&m1=03&y1=2017&h1=00Z&d2=01&m2=03&y2=2018&h2=23Z

                        1 Reply Last reply Reply Quote 0
                        • 小黄小
                          小黄 Sailor @dgrubman
                          last edited by

                          @dgrubman Hello,I want it too.I am a taercher,I want to use it for teaching
                          This is my email
                          923199984@qq.com.
                          Thank you very much

                          1 Reply Last reply Reply Quote 1
                          • E
                            epicenter
                            last edited by

                            Could you give us an idea of how much space 1 month of data would take?

                            1 Reply Last reply Reply Quote 0
                            • 3
                              3842022
                              last edited by

                              软件总是连不上网络,借贵地请教一下。

                              Tomber42T 1 Reply Last reply Reply Quote 1
                              • Tomber42T
                                Tomber42 Moderator @3842022
                                last edited by

                                @3842022 said in How can I access historical data?:

                                软件总是连不上网络,借贵地请教一下。

                                Yes...

                                Greetings from Tomber

                                1 Reply Last reply Reply Quote 2
                                • mimakaevM
                                  mimakaev | Premium
                                  last edited by

                                  Re: storage. Access even to a very sub-sampled historical data would be useful as well!

                                  If you have data at 1 degree resolution, that is roughly 360*180 points per globe. If you were to only keep 5 (7, 10) basic measurements (pressure, temperaturue, wind speed/direction, precipitation) at three different altitudes (0, 850hPa, 500hPa), it gives you: 360 * 180 * 5 * 3 * 4 (bytes per float32), which is about 4MB per measurement. Sample it every 3 hours over a year, and that would be 8GB/year. Go to 0.5 degree resolution, and that's 32GB/year. That still can fit on my laptop. And I think grib files actually use less than 4 bytes per point.

                                  I was also frustrated with the lack of any ways to access historical data. So I'm actually planning to download a bunch of grib files from public GFS server, select only relevant timepoints/layers, and save them for viewing in existing grib viewers (or publish them somewhere). It is still a lot of work, probably a week of coding for me, and however many days/weeks to download the data. I may actually do this project at some point.

                                  1 Reply Last reply Reply Quote 1
                                  • B
                                    bartbv
                                    last edited by

                                    Is it possible to view data less than 24 hours ago?
                                    I assumed this was possible, but there is a reset at 00:00.

                                    B 1 Reply Last reply Reply Quote 1
                                    • B
                                      bartbv @bartbv
                                      last edited by

                                      @bartbv I found out, this is possible by changing your computers local time.

                                      1 Reply Last reply Reply Quote 0
                                      • A
                                        ababah @ivo
                                        last edited by

                                        @ivo Historical data is very important to some researchers and users

                                        1 Reply Last reply Reply Quote 2
                                        • don longD
                                          don long
                                          last edited by

                                          down with surfline hail the new king. WINDYTV.com

                                          1 Reply Last reply Reply Quote 0
                                          • drjduncanD
                                            drjduncan
                                            last edited by

                                            At some point we should talk. I might be able to help. Dr. Duncan. Send me your email if you'd like to...

                                            Jim

                                            1 Reply Last reply Reply Quote 0
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