Mailing List Archive Mailing List Archive
Kent, I do not know the nautical data for the wrecks concerned, but be aware that other influences than tides can have an effect on sea level or ground depth. For sea level, there is the Ekman phenomenon, causing a rise in sea level because the coriolis forces are holding effect in depth, deflecting the offlowing deep layers of waters (caused by strong winds) by 90 degrees off the surface current. Local peak currents/ vortices at stern or bow can cause material transport of ground. The efficient prevalent currents forces and velocity can be determined by the diameter of the gravel resting on the ground, provided it is not clay or silt, which sticks together by dipol adhesion, as opposed to gravity. Kent Lind schrieb: > > This discussion has made me curious. How much do the tides vary out there > in Florida? > > Here in SE Alaska the change in depth from lower low to higher high tide can > be 25' or more. And the actual depths are often a couple feet different > from the predicted depths in the tide tables. And finally, the tides are > semi-diurnal which makes things even more crazy. Up in Cook Inlet the tides > can change by 36' or more. > > So trying to peg the depth of a wreck is pretty difficult. Even if you know > what the tide is "supposed" to be on the tide table, the actual tide at the > spot you are diving might be quite a bit different from the prediction both > in terms of depth and time. So you can't really even check your watch and > depth gauge on a survey and then reliably translate that depth to mean lower > low water using the tide charts. All you can really do is mix and plan for > max depth at high tide. > > -Kent- > > > -----Original Message----- > > From: Michael Barnette [mailto:aocfishman@ho*.co*] > > Sent: Thursday, October 12, 2000 7:09 AM > > To: trey@ne*.co*; techdiver@aquanaut.com > > Subject: Re: AUE Weekend Dive Report > > > > > > Perhaps with global warming and sea levels rising you are > > correct. I have > > yet to dive the Kendrick so I was going from first hand information from > > those that have dove the wreck. 315' or 326' a'int enough to > > quibble over. > > > > Well, as I was without a scooter this trip, I was content on just > > swimming > > around the stern section a few times, checking out the hangar and > > the neat > > swim-thru, sliding into one of the side turrets, trying > > (unsuccessfully) to > > slide up into one of the big deck guns, poking about the interior looking > > for "bottom junk," checking out all the neat controls in the > > superstructure > > rooms, but not jumping over to the bow. I forgot to bring my > > census slate > > down or I would have run a couple of fish counts as well. There > > are plenty > > of rooms and compartments to investigate just on the stern. Gee, > > and I had > > a total run time of a massive 99 minutes (BFD). I like to take > > my time and > > really soak up the scenery; not that any of this matters as we > > don't try to > > compete with anyone else -- we just try to have fun... > > > > Joe - you owe me a dollar. It took longer than we thought, but... > > >From: trey@ne*.co* (Trey) > > >To: "Michael Barnette" <aocfishman@ho*.co*>, <techdiver@aquanaut.com> > > >Subject: Re: AUE Weekend Dive Report > > >Date: Thu, 12 Oct 2000 06:26:02 -0400 > > > > > >I got 315 on the sand 9 years ago. I guess it got deeper. The > > Wilkes is 250 > > >ish if you get under the concave part of the hull, 200 or so to the stern > > >deck. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]