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    How can I access historical data?

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    • 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
                          • RK7R
                            RK7 @ivo
                            last edited by

                            @ivo

                            thanks understand ,
                            I am working on finding a sustainable shipping solution by harnessing wind energy on ships and for which i need to understand the wind patterns /speed along the Indian Peninsular . If there is an paid subscription for historical view or any other arrangements possible , please do let me know .
                            Brgds
                            RK7

                            Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                            • Gkikas LGPZG
                              Gkikas LGPZ Moderator @RK7
                              last edited by

                              @rk7
                              https://weather.us/model-charts/euro/india/wind-mean-direction/20180820-0900z.html

                              RK7R 1 Reply Last reply Reply Quote 0
                              • RK7R
                                RK7 @Gkikas LGPZ
                                last edited by

                                @gkikas-lgpz
                                thank you ,
                                I would like to have historical wind patterns say Jan ,Feb so on to December so as to understand how it blows from where and how strong .

                                Brgds
                                RK7

                                Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                                • Gkikas LGPZG
                                  Gkikas LGPZ Moderator @RK7
                                  last edited by Gkikas LGPZ

                                  @rk7
                                  See "Indian Ocean Pilot Charts" (Pub. #109)
                                  http://www.offshoreblue.com/navigation/pilot-charts.php

                                  RK7R 1 Reply Last reply Reply Quote 1
                                  • RK7R
                                    RK7 @Gkikas LGPZ
                                    last edited by

                                    @gkikas-lgpz

                                    thank you

                                    1 Reply Last reply Reply Quote 1
                                    • R
                                      RootInc.
                                      last edited by

                                      Hi, Ivo.

                                      As a farmer, I definitely need the historical data.

                                      Keisuke (CEO, Root Inc., Japan)

                                      1 Reply Last reply Reply Quote 1
                                      • A
                                        ANTIGUA
                                        last edited by

                                        Please. It would be great for ocean rowing.

                                        1 Reply Last reply Reply Quote 0
                                        • steffan.watkinsS
                                          steffan.watkins
                                          last edited by

                                          I understand the issue with funding, and space, but was none the less wondering if South Atlantic wave and wind data from August 30th was still cached or otherwise still in the database, or if it has already been purged. Thank you for making an amazing weather service! :)

                                          idefix37I 1 Reply Last reply Reply Quote 1
                                          • idefix37I
                                            idefix37 Sailor Moderator @steffan.watkins
                                            last edited by

                                            @steffan-watkins
                                            You can find historical data on south Atlantic here:
                                            https://weather.us/model-charts/euro/europe-africa/wind-mean-direction/20180907-1500z.html

                                            1 Reply Last reply Reply Quote 1
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