dive tides 101
- spudgunman
- Compulsive Diver
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dive tides 101
I remember a bit from the OW but it didnt go into detail much.. is there any Tides for Divers 101 on how to plan and best times to plan etc
Kelly(boy)
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Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
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Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
Re: dive tides 101
Its site specific, do you have a particular place in mind?
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- spudgunman
- Compulsive Diver
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- Joined: Fri Jul 30, 2010 9:08 pm
Re: dive tides 101
no I was just reading that other thread you gave advice on and was interested in more.. but didnt want to jack that thread. I was wondering how you came up with the time to get dives in before and be done by and how you calculated it
Kelly(boy)
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Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
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Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
Re: dive tides 101
The beginning of planning is getting a good set of tide tables, or a site to use, like THIS one. You have to inspect tides and currents, for the station that is closest to the place you want to dive (so you have to know the geography a bit). But some sites have individual quirks -- for example, Keystone, which is very current sensitive, is diveable on virtually any flood, but can get hairy on strong ebbs. Skyline, a current-sensitive site, is best dived on small but not minimal exchanges; on tiny exchanges, the current may never reverse.
The Fischnaller book (Seattle Shore Dives) has tide instructions and corrections for many of the popular local shore diving sites. I'm not aware of anything similar for boat diving locations, which is why I end up asking for advice.
The Fischnaller book (Seattle Shore Dives) has tide instructions and corrections for many of the popular local shore diving sites. I'm not aware of anything similar for boat diving locations, which is why I end up asking for advice.
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- spudgunman
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- Joined: Fri Jul 30, 2010 9:08 pm
Re: dive tides 101
I see ...
thanks for the info makes sense I thought there was just something easy you can apply
thanks for the info makes sense I thought there was just something easy you can apply
Kelly(boy)
_____
Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
_____
Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
Re: dive tides 101
generically...spudgunman wrote:I see ...
thanks for the info makes sense I thought there was just something easy you can apply
neap tides are better for genuinely current sensitive sites. basically 1/2 moon.
"spring tides" (which happen all year round) occur on full and new moons and these are stronger.
The Fischnaller book is a good place to start for the most popular shore sites.
For boat sites there's a now out of print map of current substations which can help locate the closest or most relevant. Since that's not available, you'll end up using a compass, ruler and a chart to decide if "2 miles north of __________" is relevant or not. If you have something in mind we can try to help here or at least provide experience to cross-reference. Some boat sites are honestly too complex to predict, the dungeness crane and diamond knot are probably in this category. Since currents are slowed by the friction of shorelines, most shore sites can be guesstimated good enough.
Sounder wrote:Under normal circumstances, I would never tell another man how to shave his balls... but this device should not be kept secret.
Re: dive tides 101
Just jump in and if you can't swim against it the current is too strong try again in an hour until you get it right. I am just kidding being aware that currents can be a factor and assembling information before a dive is a good start. However, you still need to arrive early and watch the conditions before diving. Going to a new to you sites with people that dive them frequently is a good way to learn but does not alleviate you of the responsibility of looking up the info and educating yourself. As you begin to learn how different sites work you will start to be able to have a better educated guess about other sites. Local knowledge is always good just don't take it whole cloth.
"A man must have some wit to know he is a fool"
Maritime Archaeological Society (MAS)
http://maritimearchaeological.org/
Northwest Diving History Association (NWDHA)
http://www.divinghistory.org/
Maritime Archaeological Society (MAS)
http://maritimearchaeological.org/
Northwest Diving History Association (NWDHA)
http://www.divinghistory.org/
Re: dive tides 101
www.planyourdive.com is a pretty good site for local diving. It will generate site specific tables and also projected flow charts. Just have to join and login... no fees
-Alex-
"so in the interest of advising something...let's see..."the early bird may get the worm, but the second mouse gets the cheese!" -Eliseaboo
"so in the interest of advising something...let's see..."the early bird may get the worm, but the second mouse gets the cheese!" -Eliseaboo
- spudgunman
- Compulsive Diver
- Posts: 389
- Joined: Fri Jul 30, 2010 9:08 pm
Re: dive tides 101
ohh nice !
Kelly(boy)
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Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.
_____
Per TOS: I explicitly ask you to feel free to criticize me constructively or just because you want to pick on me.