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30-08-2009, 01:51
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#1
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,571
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Tide and Current Charts
Does any one know who publishes the charts with a graphical representation of the currents in a given body of water? The most familiar one being the chart of Long Island sound used in all of the Navigation classes. To clarify, I am not looking for tide tables, but rather a chart with a bunch of arrows on it.
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30-08-2009, 10:36
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#2
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Registered User
Join Date: Mar 2008
Location: Calgary, AB, Canada
Posts: 6,252
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Are you looking for Long Island or some other locale?
The Canadian Hydrographic Service publishes one that covers Georgia Strait and Puget Sound.
__________________
CRYA Yachtmaster Ocean Instructor Evaluator, Sail
IYT Yachtmaster Coastal Instructor
As I sail, I praise God, and care not. (Luke Foxe)
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30-08-2009, 11:36
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#3
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Registered User
Join Date: Feb 2007
Location: Seattle
Boat: Schock 35
Posts: 157
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Starpath Publications ( www.starpathpublications.com) publishes "Tidal Currents of Puget Sound" which I have found to be very useful. I am not aware of anyone who publishes such charts for other regions.
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31-08-2009, 11:59
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#5
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Registered User
Join Date: Aug 2007
Location: "...barren elbow of sand..."
Boat: Pearson 26
Posts: 189
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Eldridge Tide and Pilot Book
Eldridge Tide & Pilot Book covers the entire east coast. Very good publication.
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31-08-2009, 12:20
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#6
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Registered User
Join Date: Mar 2008
Location: Calgary, AB, Canada
Posts: 6,252
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SailFlow, a subscription service, offers graphical displays of currents.
Jack
__________________
CRYA Yachtmaster Ocean Instructor Evaluator, Sail
IYT Yachtmaster Coastal Instructor
As I sail, I praise God, and care not. (Luke Foxe)
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31-08-2009, 12:48
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#7
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֍֎֍֎֍֎֍֎֍֎
Join Date: Apr 2006
Posts: 15,136
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"in a given body of water" is the trick question.
In the US, that used to be NOAA, I think. We keep bumping things around, the Defense Hydrographic and Mapping folks got forced to deal with civilians, then their name and mission got bumped again...
But which body of water are you looking for? In some places, like Britain, that information will be "crown property" and you'll have to buy it.
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31-08-2009, 14:02
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#8
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,571
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I am not looking for any body of water in particular.
In this Navigation video that I am watching John Rousmanierre (sorry if I butchered his last name) has a chart of Long Island Sound and it has all of these arrows on it with different speeds written under them.
I know some charts, like the real one's published by NOAA, have little indicators if there is a place with an extreme current like Woods Hole in Cape Cod. But the one he has is chock full of arrows and when he closes it, it says "Tide and Current Charts" on the cover. A google search came up with nothing.
I love sailflow and those online indicators but have had no luck on the accuracy front with sail flow
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31-08-2009, 15:01
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#9
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֍֎֍֎֍֎֍֎֍֎
Join Date: Apr 2006
Posts: 15,136
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Yes, the LIS charts were published by NOAA, mine is still that old since the geography and currents haven't changed. Since US government "copyright" belongs to the people not the state, you'll find the same charts in Eldridge and other reprinters.
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31-08-2009, 15:40
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#10
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Eternal Member
Join Date: Feb 2008
Location: Las Brisas Panama AGAIN!
Boat: Simpson, Catamaran, 46ft. IMAGINE
Posts: 4,507
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Was he using a chartplotter, or computer? I use Maptech, and they show current, and speed on their charts.
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31-08-2009, 22:11
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#11
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Registered User
Join Date: Dec 2006
Boat: Looking for a new boat
Posts: 2,571
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Quote:
Originally Posted by imagine2frolic
Was he using a chartplotter, or computer? I use Maptech, and they show current, and speed on their charts.
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Nope, paper chart booklet.
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02-09-2009, 14:18
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#12
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Registered User
Join Date: Jul 2009
Location: The Netherlands
Boat: Koopmans, 33 ft cutter
Posts: 170
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In The Netherlands the Tides and Tidal Currants atlas is published by the Royal Navy (publication HP33), updated every year. About $28, both paper and digital.
Klaas
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02-09-2009, 14:33
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#13
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Registered User
Join Date: Mar 2008
Location: Easton, CT
Boat: MJM 50 Z
Posts: 343
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The paper charts with current arrows are in a set with one hour jumps in between.
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