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15-03-2014, 17:17
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#1
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Registered User
Join Date: Jul 2007
Location: W Florida
Boat: Still have the 33yo Jon boat. But now a CATAMARAN. Nice little 18' Bay Cat.
Posts: 7,086
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Interesting high/low tide pics
In the area I live high and low tides are not very impressive so these are amazing to me.
Just like people come to see Mangrove swamps here.
Pretty pics of high/low tide.
BabaMail -The Highs and Lows of the Tide - Beautiful!
__________________
Who knows what is next.
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15-03-2014, 19:28
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#2
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Registered User
Join Date: Apr 2008
Location: LandLocked USA
Boat: I Want A Catalac
Posts: 58
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Re: Interesting high/low tide pics
Very cool, thanks for the link.
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15-03-2014, 20:11
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#3
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Moderator
Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 21,151
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Re: Interesting high/low tide pics
Been in some places like that over the years... sure makes dinghy management interesting when going ashore! To say nothing of being very careful when anchoring.
Folks who deal with tidal ranges like that regularly must get a heightened ability to judge things by looking at sun and moon, as well as reading tide tables very carefully.
Cheers,
Jim
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Jim and Ann s/v Insatiable II, lying Port Cygnet Tasmania once again.
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15-03-2014, 22:11
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#4
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Registered User
Join Date: Nov 2011
Location: Montegut LA.
Boat: Now we need to get her to Louisiana !! she's ours
Posts: 3,421
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Re: Interesting high/low tide pics
A Capt best be haveing tide books in most all of them places !! LOL for sure !!
__________________
Bob and Connie
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16-03-2014, 05:19
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#5
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Registered User
Join Date: Sep 2010
Posts: 793
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Re: Interesting high/low tide pics
Great pics. It's not as much as some places, but we have a 10'-13' tide swing here. Those pics make me want to go do a time-laps video.....
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16-03-2014, 05:38
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#6
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Registered User
Join Date: Jun 2009
Location: Houston/Galveston
Boat: Slocum 43
Posts: 201
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Re: Interesting high/low tide pics
Wow.. Great pics. Thanks
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16-03-2014, 06:07
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#7
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Registered User
Join Date: May 2010
Location: Elsewhere on the Water
Posts: 579
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Re: Interesting high/low tide pics
British Columbia, Canada has tides exceeding 20 feet among islands and fjords that produce currents that can exceed 15 knots that makes for memorable cruising..
Here are , and . Most people pass through these areas at slack tide. If you are not at slack even moderate currents are unsettling when a large swirler suddenly moves your boat sideways towards a rocky shore. Such areas are on the charts, and predicted currents are available.
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16-03-2014, 07:24
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#8
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Moderator Emeritus
Join Date: Oct 2009
Location: Manchester, UK
Boat: Beneteau 473
Posts: 5,589
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Re: Interesting high/low tide pics
Quote:
Originally Posted by Therapy
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Third picture down is the village of Staithes in Yorkshire where James Cook once lived. Place used to be one of the biggest fishing ports on the NE coast of England.
Fourth Picture is the St. Mary's Lighthouse at Whitley Bay, Northumberland
Sixth Picture is Blackpool, for some reason, very popular with the Scots during the summer.
__________________
Nigel
Beneteau 473
Manchester, UK
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21-03-2014, 23:53
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#9
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Registered User
Join Date: Sep 2009
Location: Niagara on the Lake Canada
Posts: 187
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Re: Interesting high/low tide pics
where is the 5th? and what is it we are looking? at a fence? a dock ?
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22-03-2014, 19:07
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#10
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Registered User
Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 20,420
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Re: Interesting high/low tide pics
Fabulous. THX!
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22-03-2014, 19:25
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#11
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cruiser
Join Date: May 2010
Location: SF Bay Area; Former Annapolis and MA Liveaboard.
Boat: Looking and saving for my next...mid-atlantic coast
Posts: 6,197
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Re: Interesting high/low tide pics
Does anyone know the 11th picture? I swear I've been there!
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22-03-2014, 20:26
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#12
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Registered User
Join Date: Jul 2012
Location: New England
Boat: Catalina 42 MKII
Posts: 263
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Re: Interesting high/low tide pics
Quote:
Originally Posted by SaltyMonkey
Does anyone know the 11th picture? I swear I've been there!
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That looks like Bedruthan Steps in Cornwall.
I learned to sail on an tidal river estuary that was a mile across at high tide, but the channel was 15 feet wide at low tide. You timed everything around the tide.
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23-03-2014, 06:07
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#13
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Registered User
Join Date: Apr 2004
Location: Southern Maine
Boat: Prairie 36 Coastal Cruiser
Posts: 3,090
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Re: Interesting high/low tide pics
Cool pictures. But I have a dumb question. The web site says the photos are taken 8 or 16 hours apart.
Why not 6 or 12? I've heard of diurnal, semi-diurnal and mixed tides, but never anything 8 or 16 hours apart. Is this something unique to the UK? Or is the web site just wrong?
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23-03-2014, 07:03
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#14
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Registered User
Join Date: May 2010
Location: Elsewhere on the Water
Posts: 579
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Re: Interesting high/low tide pics
Quote:
Originally Posted by CaptTom
Cool pictures. But I have a dumb question. The web site says the photos are taken 8 or 16 hours apart.
Why not 6 or 12? I've heard of diurnal, semi-diurnal and mixed tides, but never anything 8 or 16 hours apart. Is this something unique to the UK? Or is the web site just wrong?
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Actually not dumb at all. Since the lunar day is 24 hours and 50 minutes long and the earth rotates through two tidal bulges in that time, high tides will be spaced 12 hours and 25 minutes apart. Tide prediction is rather complicated and depends on the influence of the moon, the sun, and the shape of the shorelines. NOAA has more information here.
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23-03-2014, 10:33
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#15
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Registered User
Join Date: Apr 2004
Location: Southern Maine
Boat: Prairie 36 Coastal Cruiser
Posts: 3,090
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Re: Interesting high/low tide pics
Quote:
Originally Posted by St. Elsewhere
Actually not dumb at all. Since the lunar day is 24 hours and 50 minutes long and the earth rotates through two tidal bulges in that time, high tides will be spaced 12 hours and 25 minutes apart. Tide prediction is rather complicated and depends on the influence of the moon, the sun, and the shape of the shorelines. NOAA has more information here.
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Right. Which is why I asked. I know some isolated locations around the world have oddball tides due to geography and bathymetry. But 8 hours is closer to 1/3 of a lunar day, so I fail to grasp how you'd get consistently high and low water 8 hours apart. I assume it's a mistake, but I stand ready to be educated.
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