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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 » Sailonline Race Committee » Races

will you?
2015-03-16 17:26:18

Re: RTW start

Board » Sailonline Race Committee » 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 » Sailonline Race Committee » 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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Auckland to Fiji 2023
Welcome to Auckland and, for the fifth time in Sailonline's history, an epic race to the Melanesian island of Fiji, some 1144nm away. The iconic Steinlager 2 has traditionally been our boat of choice for this event, including in 2020, the last time we raced the course – alone, unaccompanied by a real fleet as it had been #COVID19 quarantined. Alas, this year we will again be racing unaccompanied as low entry numbers has seen the real race cancelled. Hopefully, though, some of the real sailors from the Royal Akarana YC, hosts of the real event, will be joining us online to pit their skills against ours in the ever-changing forecast winds.
Race #1675
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Susan Hood Trophy Race 2023

Lake Ontario Offshore Racing (LOOR) welcomes racers to the third virtual Susan Hood Trophy race. This is a 75nm weekender on western Lake Ontario starting and finishing at the Port Credit Yacht Club (PCYC) via Niagara and Burlington, and is one of two that will count towards a special Sailonline's LOOR Series medals. As our Beneteau First 36.7 managed the course so well in previous years, we shall race her again!
Race #1690
INFOby brainaid.de
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NAM_AWIP WX Updates:
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Ranking: SYC - LOOR
Race starts: Jun 03rd 00:00 Registration Open!

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SoCal 300 2023

Here, once again, is your chance to participate virtually in a second race of the California Race Week calendar, SDYC's challenging 243nm (as the seagull flies) SoCal 300 from Santa Barbara to San Diego. With a broad range of boats entered in the real race, virtual SOLers will have to dig deep to remain competitive in our trusty Santa Cruz 52s.
Race #1674
INFO by brainaid.de
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NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: SYC
Race starts: Jun 01st 20:00 Registration Open!

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Cape Town to Auckland 2023
Welcome to this second RTW race 2023. It's also the June edition of this year's ocean race championship. The course is slightly different from the one sailed in 2020, which then also was part of the RTW series.
This time we will race in the IMOCA 60 foil, as in all RTW races this year. That should guarantee the fun in the South Seas in a truly tough race.
PRIZE: SMPF
Race# 1685
INFO from brainaid.de
IMOCA 60 foil Particulars
WX updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - OCCH - RTW - SUPSOL - SYC
Race starts: Jun 01st 09:00 Registration Open!

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CA 500 2023

To celebrate the 50th anniversary of the TransPac Ocean Race in 2019, the organisers of the California Race Week introduced a new longer distance event for line-honours machines. Popular with the largest maxi trimarans, this CA 500, 500nm from San Francisco to San Diego, repeats in 2023, and if you don’t own a maxi trimaran, Sailonline are delighted to have the honour to, for the first time, make their virtual version available to you for a quick ethereal dash down America’s west coast.
Race #1687
INFO by brainaid.de
Maxi Tri PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: SYC
RACE CLOSE: Saturday,
June 3 at 2300 UTC.
Race starts: May 26th 18:00 Registration Open!

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Lisbon to Cape Town 2023
Our second OCC race in Q2 is also our first race of a special
6-race RTW series, in IMOCA 60 Foilers, from the board of ita10267. Long bluewater legs, with the shores of the World's continents the only restriction on where you may sail, starting with a 5000nm leg from Lisbon to Cape Town. Enjoy!
PRIZE: SMPF
Race #1683
INFOby brainaid.de
IMOCA 60 foil Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - OCCH - RTW - SUPSOL - SYC
RACE CLOSE: Thursday,
June 1 at 2300 UTC.
Race starts: May 03rd 09:00 Registration Closed

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