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Old 10-10-2016, 15:36   #16
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Re: Has anyone Southamerica Current Data for OpenCpn?

Some thoughts.....
Home is the place to start looking for Chilean info. They may have something that can be used with openCPN

In Rio de la Plata the sea level is influenced to a truly remarkable degree by the weather/wind. I don't think I ever used tide tables there.

South of the Brazil/Uruguay border there is the north going Falklands Current which runs inshore of the prevailing south going circulation (Brazil Current?).

As stated there are big tidal ranges along the Argentinian Patagonian coast which have quite an effect a considerable distance offshore from the major headlands and can lead to very nasty wind over tide conditions.

It is not a good idea to consider entering Magallanes from the east. Considerable tidal streams, no shelter, and prevailing strong westerlies... and thats before you get to the narrows.

Once into the Beagle and heading up the channels the tides are only critical in a few places. Canal Barbara I have never been through and can't help with. Ackwalnisan I shall post shortly when I get back to the boat ( you need to know the tide at P Arenas.) Canal Chacao is 'interesting'.

The rest is straight forward.

As mentioned above the range gets quite large north of Boca de Guafo, south of there it is in the order of a few metres and the vast majority of the anchorages are deep.
I carry the hard copy Chilean tables... me being old fashioned and all.
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Old 10-10-2016, 15:49   #17
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Re: Has anyone Southamerica Current Data for OpenCpn?

Awesome. Thanks!

www.ladyrover.com
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Old 10-10-2016, 16:20   #18
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Re: Has anyone Southamerica Current Data for OpenCpn?

As promised... Paso O'Ryan( commonly known as Ackwalnisan ) tides.... based on research undertaken while spending quite a few days hanging around there one June with a blown motor waiting for a favourable tide that would give me a chance to get to the next anchorage in daylight.

Slack water is at HW Punta Arenas + 2h 20m

Then the tidal stream runs towards the north for approx 8 hours

Slack water is at LW Punta Arenas + 4h 20m

Thdn the tidal stream runs towards the south for approx 4 hours.

Once a mile or two clear of the narrows very little tidal stream is felt.

Another small point. I see Google are shutting down Panoramio at the end of the month so my photos ( link below ) will no longer appear on google earth. I'm still thinking about other posting options.

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