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Profile for ita10267



Name ita10267
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Posts88
  • 2022-02-22 13:06:53
    R.I.P. J24Opla
    Board » General Discussion
    Yesterday we received the sad news that Claudio (aka J24Opla) sadly passed away.
    Claudio was a great sailor, mostly appreciated in the lakes Maggiore and Garda and also a very active member of SOL community. Unfortunately he became very ill and COVID was not nice to him.

    May he rest in peace and sail away in smooth sea.

    Andrea (aka ita10267)
  • 2019-04-11 10:10:09
    Re: RIP psail - Joao Malafaia
    Board » In memoriam
    Still shocked by the terrible news! Had quite a few professional chat with Joao and I will remember him for is clear and concise way of thinking. Like to remember him sailing, IRL or virtually, with the same spirit!

    ciao
  • 2015-03-16 20:29:54
    Re: RTW start
    Board » Flag Officers » Races
    will you?
  • 2015-03-16 17:26:18
    Re: RTW start
    Board » Flag Officers » Races
    Well Done! It was the right decision to make. One of the reason SWR is the main event of SOL year is that we really get to test ourselves against the top navigators. And with 18 hours of headstart (and a totally different wx configuration) it would have been a pity to race this one on our own.

    Thanks to the SRC and management for the reaction in such a short time!
  • 2015-03-16 13:08:57
    Re: RTW start
    Board » Flag Officers » Races
    It appears that we are starting despite the new postponement of the IRL race. I am in total disagreement with this decision as it makes incomprehensible the first postponement. Hope that the SRC can reconsider and delay the start accordingly.
  • 2015-02-19 16:46:03
    Re: The Weather Research & Forecasting Model (WRF)
    Board » Technical Discussion
    In synoptic conditions, i.e. wind given by large pressure systems, forecast are simpler and more reliable (see the Bos-New race with the heavy storm). In fluky conditions, with basically no pressure gradient, wind is given by "local"effect such as cloud coverage etc. So yes, on mesoscale, weather is less "consistent".

    As a comparison, GFS is "averaged" over a much bigger gridsize, so all the small scale variation are zeroed and you ave a more stable but less interesting windfield. On the other hand NAM model, on a 0.1deg scale, has the same behaviour.
  • 2015-02-17 07:01:29
    Re: The Weather Research & Forecasting Model (WRF)
    Board » Technical Discussion
    JB,
    at present time we have to allow for some WX data outside the race course (the purple line). This to allow predictor to work properly in the client. In this race we have used 0.5deg from each side. In the end we had more than 30% of datapoints "useless" for the race. In an optimal condition (no points outside race area), wxfile should have been around 4MB, which travels compressed now, so perfectly usable for the "desktop" client.
    Regarding mobile, probably it has some problems (depending on hardware) regarding memory and cache. Probably Zappe can look into that.
    Finally, the WRF is defined every hour, so dataset is 3X for the same resolution compared to GFS. As outlaw commented, we should push for even higher time resolution (1 frame every 15min). In this case probably we'll have denser frames for the first 6hrs and sparser afterwards.
    Ciao
    a.
  • 2015-02-13 11:14:02
    Re: The Weather Research & Forecasting Model (WRF)
    Board » Technical Discussion
    forecast for sunday morning
  • 2015-02-11 14:37:14
    Re: The Weather Research & Forecasting Model (WRF)
    Board » Technical Discussion
    A small video on high resolution weather

    http://youtu.be/n5ThrmvMJxA
  • 2015-02-10 21:30:23
    Re: The Weather Research & Forecasting Model (WRF)
    Board » Technical Discussion
    so, you are referring to the grid discretization.
    In SOL this changes from race to race. Usually we start from 0.5x0.5 deg GRIB file from NOAA which is then interpolated to the grid of our interest. In Leg4, for the first time, we are running the ocean on a 1x1 deg grid. The "pointy" edges are caused by the interpolation algorithm (bilinear), which is the same we use to get wind in between grid points.
    The WRF model we are using in the BOS-NEW race is evaluated on a much denser grid. This is not an interpolation process but a complete physical evaluation. The 0.5degx0.5deg GRIBS from NOAA are taken as boundary and starting conditions then the calculations are done on a powerful computer. The result is a 0.05X0.05 deg GRIB.

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San Diego Islands Race 2026


Sailonline is proud to once again partner with the San Diego Yacht Club for the annual Islands Race! This iconic offshore challenge spans approximately 140 nautical miles, starting in Long Beach, rounding the Catalina Islands, and finishing in San Diego. Shifting coastal winds and tactical island roundings will test every sailor’s judgment and nerve.

This year, our SOLers will race the Ker 40, a proven high-performance design by Jason Ker and built by McConaghy Boats. Fast, responsive, and demanding, the Ker 40 rewards precision and smart strategy. The competition will be tight. Every decision will count. See you on the start line!
Race #2009
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Cross the Convergence 2026 - Samoa to Hawaii


The second race of our new series of ocean voyages across the World’s convergence zones, takes us northward again up the Pacific Ocean, now from Samoa at 13.5 degrees South, across the Equator to Hawaii, famed for its breaking surf and active volcanoes, on the edge of the Tropic of Cancer at 19.5 degrees North. It’s 2300nm, so we’ll take our very steady Steinlager II. Race #1982
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Beketov by Balloon 2026 - In Siberia


Way-back-when France and England, and Spain as well, were squabbling about who should control what of North America, only to lose the most of it to their own insurging colonists, their eastern European neighbour empire, Russia, was quietly assimilating vast, thinly nomadically populated territory of its own – Siberia! Amongst the many explorers and adventurers that served Russia so well in these conquests was the Cossack hetman Pyotr Beketov. Let’s pretend we’re he and eschewing horseback, let’s travel by balloon from Yekaterinberg to Krasnoyarsk – just a short 2000km (1100nm) section of the Trans-Siberian Express’ 9289km!
Race #1972
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West Papua to Oregon 2026

Our next race in our Ocean Championships is the first of a series of great natural migrations we will track in 2026. The leatherback turtle is the most widely distributed marine reptile on planet Earth, and chooses to breed in warm tropical waters, but prefers to forage in more temperate habitats, travelling thousands and thousands of miles effortlessly annually to maintain this way of life. Our race will follow one of the typical trips of this turtle, from breeding grounds in the seas off West Papua to the coast of Oregon. It’s only 5900nm, so to keep up, but in comfort, we’ll follow in our Gunboat 90.
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