Météo-Parapente has moved

Météo-Parapente has moved

Before flying to Belgium for good, there was still a small matter to settle: Weather-Paragliding...

 

I had restarted the calculations this winter, but the servers were still in my office, in keeping with the do-it-yourself tradition of the project.

"Orange didn't want to connect my premises? No problem, we pulled 80 meters of optical fiber from the paraglider neighbour's living room »

Obviously, it was a temporary installation. The move comes at the right time. In winter, computers replaced the heating, but now it was starting to become the sauna.

The new house

As promised, I opted for a professional infrastructure. No more do-it-yourself. Head to the data center.

Here is the new meteo-paragliding house:

Finally, it looks a lot like the latest supercomputer from Météo-France:

Well, obviously, everything in my house fits in a single cabinet. But it's already a good start.

In any case, the machines will be taken care of, cool all year round and with super internet.

You'll even have to cut off my finger if you want to go visit them:

Invoice level, on the other hand, it stings. This is the normal price of the sector, but it still stings well.

At first, I wanted to take low-cost accommodation at Free, "only €699 excl. VAT / month". But they did not offer enough electrical power for intensive computing.

Finally, I found another datacenter in the Paris region. It's more expensive, but here I can draw 32 amps just for Weather-Paragliding.

Besides, I have a little leeway. So if anyone has any servers lying around, I can accommodate you.

The new barbecues

I had already made a “machinery” investment to relaunch RASP this winter. Here is the second batch for spring...

A few dozen memory sticks:

And processors sold by the kilo:

A round trip to Paris and after 4 days of hassle and unforeseen events, Météo-Parapente's move is (almost) finally over.

Thanks to all the contributors thanks to whom we can now have 3-day forecasts.

41 thoughts on “ Météo-Parapente has moved »

  1. That's all very well, but when do you think you'll take care of AROME for
    have the latest up-to-date run, rainfall
    And the RASP-style thermal Vz?
    CPT

    1. Yes, it's true, but the 3-day forecasts we don't really know where they come from, whereas AROME's 00h run at 5:30 in the morning I know is the best for the day and I would like to have it in the presentation of Nicolas
      and it is not yet.
      I can't sleep either while waiting for a new Pioupiou…..
      CPT

    2. Given the direction that Météo-France is taking in relation to its “pseudo open-data”, I hesitate to invest more time in highlighting their AROME data. On the contrary, it rather encourages the development of alternative solutions to do without them entirely. I will do a full article on the subject when I have some time.

    3. I understand your reaction. That said, there is no doubt on my side, the forecasts of the Arome model are much better than those of rasp, wind level, direction and even convective layer…

    4. I think it really depends on the region! For the SE quarter, it's often quite unreliable. In any case, significantly less than the RASP.

    5. Nicolas, be serious,
      when you say "This version often presents missing data (ex: completely black map…). This is due to recurring (deliberate?) malfunctions of the Météo-France servers. The problem depends on Météo-France and we unfortunately have no no control over it."
      you can see that Météociel
      has almost no AROME missing runs
      with the same source as you
      and above all they are up to date with the last run.
      So where does the problem come from?
      It's a pity to have managed to open up these data and now not to value them!
      That was the hope of many of us…..
      Good luck,
      CPT
      😉

    6. Météo-Ciel does not retrieve altitude data, which is the most voluminous. They can therefore afford to re-download each file 10x until the server decides to provide an uncorrupted file.

    7. The soundings in AROME by Météociel go up to more than 15000m,
      yours stop between 3000 and 4000m.
      Who collects the most data at altitude?
      At 5:30 in the morning, they also have the precipitation of the run of 00TU
      in HD (1,25km).
      😉

    8. So it's because Météo-Ciel spent more time than me to set up a system that detects and re-downloads corrupted files.

      It doesn't change the initial problem: the Météo-France server is completely screwed up. And since they've known about it for months and haven't responded, then they can't be considered a reliable source.

      So for the moment, AROME developments, although they remain planned, are not a priority. I don't want to invest time in a system that we risk throwing away overnight because the institution isn't doing its job properly.

    9. My vision of the Météo-France offer: if you pay, we guarantee access; otherwise, it's 'best-effort' depending on: the server load, the number of people loading at the same time, the site manager's mood… or whatever. So, pay and you will have a reliable service, otherwise, manage

    10. You want me to believe that it is because Météociel makes too many requests to the Météo France server that Météo-Parapente cannot load the run from 00UTC to 5am!
      When a transmission is not going well, it is either the sender,
      either from the receiver and if it works elsewhere it is the receiver that is messing up….

    11. Aroma level maturity is limited to the max at 44 hours which is normal
      on the 1.3km resolution the altitude data is poor, I rather think that it is necessary to enrich RASP

    12. I'm talking about Arome 1.3 kms you don't have altitude data beyond 3000 meters well on the other hand beyond 3000 meters altitude the data would be more or less that obtained with Arome 2.5 kms, the interest of Arome HD being the taking into account of the phenomena of low layers

  2. Congratulations, I'm even a little ashamed of not having followed the project more and of not having contributed...
    Let us know as soon as the subscription page is operational again.
    Congratulations again!
    Tristan

  3. Well done and thank you! Always a good job. A word of advice: don't dwell too much on the comments of very demanding people who only think of their little person and see nothing else. Good luck for the future.

  4. great job! cheer! 3-day forecasts are great!
    For Arome, I am in the southeast (signs) and I very often compare forecasts and actual wind readings (FFVL beacon) and it must be said that most of the time the Arome model is much closer to reality. Although of course this is not always the case..no one is perfect..
    Too bad that Météofrance doesn't seem to want to share its data easily..

    1. Voluntarily or not, either we are malicious or we are negligent at Météofrance. Either way, it's really not cool. And if they do not react to remarks made on the quality of the data provided. There is then a bad will which leads to a "sabotage" during the delivery of the data. We can completely sabotage by inaction.

    2. Either they are technically incompetent (which is not incompatible with what I have seen during my exchanges with them), or they are in very bad faith.

      All I see is that everything was working fine during the summer. Then suddenly in November their server started completely messing up. Then in January they introduced a “premium” option at €50000/year allowing files to be downloaded reliably… We can ask ourselves questions.

  5. What a pleasure all this Nicolas! My pioupiou works wonderfully! When to me the RASP suits me as well as the altitude! Just the search by bled which does not work but it is not urgent. A big thank-you.

  6. CPT, wouldn't you work at Météo France?
    Go blow up access to 50000 balls...
    I laugh !
    Long live Nicolas and paragliding weather!

    Math

  7. Well seen, I used to work there, I know the house
    who cares more about his brand image
    only to improbable commercial profits….

  8. Hello, for a new entrant that I am (hot air balloon pilot) can you please tell me where to find explanations on what RASP is please? thank you and congratulations!

    1. RASP model (Regional Atmospheric Soaring Prediction). It is based on WRF, and is specially designed for Gliding.

  9. Can we know why there is such a difference in forecasts between AROME and RASP, especially for the same city, same altitude and same time of course in Cantal? A few times over 10 km/h

    1. The data comes from two different models, so it is normal to have more or less large differences. I don't want to get into the "AROME is better than RASP or vice versa" debate, but a good way to know which is more accurate for your region is to compare wind readings from weather beacons and forecasts from the two models. . To make your own statistics basically..

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