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forces in the Earth |
EQF, The Earth differs from a water-filled balloon in that the forces of the sun and the moon pull on the Earth with frequencies that do not resonate, except in the ocean. The twice-daily solar tide and twice-monthly lunar tide are widely separated from even the gravest normal mode of the Earth. This means, with the exception of the ocean tides, which you oddly choose to ignore, a simple calculation with an elastic Earth and the positions of the Sun and Moon provides the tidal forces on the Earth. The calculation whose existence you question has been correctly done for over 100 years, it is only the ocean tide contribution whose calculation is advancing. One advance of the recent Tanaka paper in JGR-red and their Fall 2002 AGU abstract is testing and incorporation of better ocean tides. This is the abstract that I posted on geo.earthquakes and you reposted here as though you understood it. "How can scientists explain how earthquakes are being triggered if they are unable to even generate the basic types of data that they need to be working with? The programs that I myself am using to generate those types of data were put together from scratch. It does not appear that they can be found anywhere." No idea what you mean by this. Numerous people computing exactly what you describe, and they are daily testing it against the strain observed in the Earth, which I doubt you are. These are the same programs I use to compare the timing of earthquakes with the tides. John Follow Ups: ● Earth acceleration in space, not the tides - EQF 08:31:12 - 2/21/2003 (18097) (2) ● Re: Earth acceleration in space, not the tides - Don in Hollister 09:08:40 - 2/21/2003 (18099) (1) ● Re: Earth acceleration in space, not the tides - EQF 21:18:14 - 2/21/2003 (18100) (1) ● Re: Earth acceleration in space, not the tides - Don in Hollister 22:37:20 - 2/21/2003 (18103) (0) ● ?? - John Vidale 09:05:43 - 2/21/2003 (18098) (1) ● Re: ?? - EQF 21:24:23 - 2/21/2003 (18101) (1) ● Re: Research Results - Earthquakes Not Influenced By Tides - John Vidale 22:12:52 - 2/21/2003 (18102) (1) ● Re: Research Results - Earthquakes Not Influenced By Tides - EQF 23:44:41 - 2/21/2003 (18106) (0) |
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