Watching water dry >> Scuttlebutt Sailing News

The irony lies in how the America’s Cup defender, eager to deliver high-performance racing for the 37th Match, has watched the grass grow. Okay, it’s not looking at the grass growing, the water looking dry… pretty much the same thing.

Their pet project, which was meant to fill a gap in the schedule, now goes into meteorology education which has to end soon. Here is their latest update:


South Australia’s Lake Gardner is huge, a salt lake 160km long and 50km wide, where Emirates Team New Zealand aims to break the World Land Speed ​​Record in a land yacht called ‘Horonuku’.

The fly in the ointment continues in the effort to be that the lake and the state of South Australia, and indeed a large part of Australia has had excessive rain this year, resulting in an uphill battle against the elements for long dry stretch. salt let Horonuku fly.

Mount Ive is close to the part of the lake where Glenn Ashby and the team are based and the daily rainfall is measured.

In November 2021 and January 2022, there were two extreme events where Mt Ive had 10 times and twice the average monthly rainfall. January’s rain fell in three days and most fell in just one day.

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Those two months put an excess of water in the lake and that water is being pushed around by the prevailing wind – several days of N head winds pushing the water to the south side of the lake and the race area and tail winds SW-S pushing. the water to the north-west. Evaporation would normally reduce the amount of mobile water in the lake, but this year, the evaporation has been compounded by more rain.

January 2022 was an all-time monthly record, as was November 2021 and August 2022 was close to a monthly record. In short – the conditions are now the result of last summer’s wetness and the rain that is happening again during this year – without allowing the lake to dry out through evaporation.

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So what’s next?

The rainfall over the western half of Australia (including South Australia) is driven mainly by the Indian Ocean measured by the Indian Ocean Dipole (IOD) with irregular oscillations of sea surface temperatures and associated atmospheric circulation.

This was in a negative phase and usually favors above average rainfall. That index has changed over the past month to neutral and is now slightly positive indicating that there will be less moisture and rain on the fronts from the west during the summer.

This is not the case in eastern Australia, where the Pacific Ocean is still in a wet La Nina phase. It is likely then that the evaporation process will become better than the monthly rainfall. But these conditions come with warm summer temperatures during the day.

So the outlook is looking more positive, the land speed team will head back to the lake in a few days to set up for a couple of weeks of dry lake speed runs with hopefully 20+ knots. Horonuku work up closer to the 200km/h mark.

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Following the publication of AC37 Protocol and AC75 Class Rule on November 17, 2021, AC75 Class Rule and AC Technical Regulations were finalized on March 17, 2022. The entry period opened December 1, 2021 and runs until July 31, 2022, but late entries for the 37th America’s Cup may be accepted until May 31, 2023. The Defendant was to announce the Venue of the Games on September 17, 2021 but postponed the unveiling of the venue, confirming that Barcelona would be there on March 30, 2022. The 37th America’s Cup held in September/October 2024.

Teams tipped to challenge Emirates Team New Zealand (NZL):
• INEOS Britannia (GBR)
• Red Bull Alinghi Racing (SUI)
• Team Luna Rossa Prada Pirelli (ITA)
• NYYC American Magic (USA)

Notice board: https://ac37noticeboard.acofficials.org/
Additional details: www.americascup.com/en/home



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