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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Tides by bearing of the moon
From: Frank Reed
Date: 2009 Apr 8, 12:40 -0700
From: Frank Reed
Date: 2009 Apr 8, 12:40 -0700
Hi Dave. Next, try some place more tropical. Hawaii perhaps? :-) That should show significantly worse behavior with respect to azimuth. I wrote some code a few years back to do tidal calculations. It's much shorter than the widely available X-tide code and only marginally less accurate: http://fer3.com/arc/m2.aspx?i=100454. Here's a question that's been in the back of my head for a long time... which is a better predictor of tide times: the local hour angle of the actual Moon or the local hour angle of the mean Moon (which we can imagine moving along the celestial equator with constant angular velocity)? -FER --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
