Received: from hplms26.hpl.hp.com by opus.hpl.hp.com with ESMTP (1.37.109.18/15.5+ECS 3.3+HPL1.1) id AA044700893; Sun, 20 Jul 1997 13:34:53 -0700 Return-Path: <alain@paris.engr.sgi.com-DeleteThis> Received: from sgi.sgi.com (SGI.COM) by hplms26.hpl.hp.com with ESMTP (1.37.109.16/15.5+ECS 3.3+HPL1.1S) id AA238420893; Sun, 20 Jul 1997 13:34:53 -0700 Received: from cthulhu.engr.sgi.com (cthulhu.engr.sgi.com [192.26.80.2]) by sgi.sgi.com (950413.SGI.8.6.12/970507) via ESMTP id NAA07671 for <@sgi.engr.sgi.com:wind_talk@opus.hpl.hp.com-DeleteThis>; Sun, 20 Jul 1997 13:31:01 -0700 env-from (alain@paris.engr.sgi.com-DeleteThis) Received: from paris.engr.sgi.com (paris.engr.sgi.com [150.166.55.35]) by cthulhu.engr.sgi.com (950413.SGI.8.6.12/960327.SGI.AUTOCF) via ESMTP id NAA03331 for <@cthulhu.engr.sgi.com:wind_talk@opus.hpl.hp.com-DeleteThis>; Sun, 20 Jul 1997 13:31:00 -0700 Received: (from alain@localhost) by paris.engr.sgi.com (950413.SGI.8.6.12/960327.SGI.AUTOCF) id NAA05720 for wind_talk@opus.hpl.hp.com-DeleteThis; Sun, 20 Jul 1997 13:30:19 -0700 Date: Sun, 20 Jul 1997 13:30:19 -0700 From: alain@paris.engr.sgi.com-DeleteThis (Alain Dumesny) Message-Id: <199707202030.NAA05720@paris.engr.sgi.com-DeleteThis> To: wind_talk@opus.hpl.hp.com-DeleteThis Subject: current laging tide height, why ? Reply-To: alain@sgi.com-DeleteThis
I've been using the site at http://www.rahul.net/cgi-bin/stain/tide-charts.cgi
to check the tide height and current at 3rd and always wonder why the current
and height of tide are not exactly in sync. Seem to be off by about 1 hour.
Seems to me that the lowest height should be right when the current is done
leaving (ebb) and vice versa for high/flood. Why 1 hour lag ? (is there
surface and under water currents in opposite directions ?)
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Alain Dumesny |\ Silicon Graphics
alain@sgi.com-DeleteThis | \ Cosmo VRML Engineering
W - 415-933-5250 | o --- 2011 N. shoreline Bvld MS 982
Fax 415-933-0255 |-=|> ---- Mountain View, CA 94043
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