Category:Geophysics - Revision history

Meylan: Reverted edits by Greg2009 (Greg2009); changed back to last version by Meylan

2009-08-02T01:29:26Z

Reverted edits by Greg2009 (Greg2009); changed back to last version by Meylan

← Older revision		Revision as of 01:29, 2 August 2009
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	# Various idealized forms of the wave spectrum generated by steady, homogeneous winds have been proposed. Two important ones are the Pierson-Moskowitz and JONSWAP spectra.		# Various idealized forms of the wave spectrum generated by steady, homogeneous winds have been proposed. Two important ones are the Pierson-Moskowitz and JONSWAP spectra.
	# Observations by mariners on ships and by satellite altimeters have been used to make global maps of wave-height. Wave gauges are used on platforms in shallow water and on the continental shelf to measure waves. Bottom-mounted pressure gauges are used to measure waves just offshore of beaches. And synthetic-aperture radars are used to obtain information about wave directions.		# Observations by mariners on ships and by satellite altimeters have been used to make global maps of wave-height. Wave gauges are used on platforms in shallow water and on the continental shelf to measure waves. Bottom-mounted pressure gauges are used to measure waves just offshore of beaches. And synthetic-aperture radars are used to obtain information about wave directions.
	~~[http://video.yahoo.com/watch/5543843/14571356 '''Gregory Geig''']~~
	~~[http://www.youtube.com/watch?v=tmkA7UQtNMk '''Dan Geig''']~~
	~~[http://vids.myspace.com/index.cfm?fuseaction=vids.individual&VideoID=60669001 '''Greg Vohn''']~~
	~~[http://www.dailymotion.com/greggy09/video/16625689 '''John Geig''']~~
	~~[http://www.motionbox.com/videos/7a9adfb51816efc7f5 '''Greg JOhn''']~~
	~~[http://www.veoh.com/browse/videos/category/entertainment/watch/v187868669NxYE2Qd '''Gerry Geig''']~~

Greg2009 at 09:39, 1 August 2009

2009-08-01T09:39:30Z

← Older revision		Revision as of 09:39, 1 August 2009
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	# Various idealized forms of the wave spectrum generated by steady, homogeneous winds have been proposed. Two important ones are the Pierson-Moskowitz and JONSWAP spectra.		# Various idealized forms of the wave spectrum generated by steady, homogeneous winds have been proposed. Two important ones are the Pierson-Moskowitz and JONSWAP spectra.
	# Observations by mariners on ships and by satellite altimeters have been used to make global maps of wave-height. Wave gauges are used on platforms in shallow water and on the continental shelf to measure waves. Bottom-mounted pressure gauges are used to measure waves just offshore of beaches. And synthetic-aperture radars are used to obtain information about wave directions.		# Observations by mariners on ships and by satellite altimeters have been used to make global maps of wave-height. Wave gauges are used on platforms in shallow water and on the continental shelf to measure waves. Bottom-mounted pressure gauges are used to measure waves just offshore of beaches. And synthetic-aperture radars are used to obtain information about wave directions.
			[http://video.yahoo.com/watch/5543843/14571356 '''Gregory Geig''']
			[http://www.youtube.com/watch?v=tmkA7UQtNMk '''Dan Geig''']
			[http://vids.myspace.com/index.cfm?fuseaction=vids.individual&VideoID=60669001 '''Greg Vohn''']
			[http://www.dailymotion.com/greggy09/video/16625689 '''John Geig''']
			[http://www.motionbox.com/videos/7a9adfb51816efc7f5 '''Greg JOhn''']
			[http://www.veoh.com/browse/videos/category/entertainment/watch/v187868669NxYE2Qd '''Gerry Geig''']

Meylan at 08:30, 6 November 2006

2006-11-06T08:30:46Z

← Older revision		Revision as of 08:30, 6 November 2006
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	Water waves have many applications in geophysics.		Water waves have many applications in geophysics.

			Here is a list of important points.

	# Wavelength and frequency of waves are related through the dispersion relation.		# Wavelength and frequency of waves are related through the dispersion relation.

Meylan at 23:54, 28 October 2006

2006-10-28T23:54:26Z

← Older revision		Revision as of 23:54, 28 October 2006
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	Water waves have many applications in geophysics.		Water waves have many applications in geophysics.

			# Wavelength and frequency of waves are related through the dispersion relation.
			# The velocity of a wave phase can differ from the velocity at which wave energy propagates.
			# Waves in deep water are dispersive, longer wavelengths travel faster than shorter wavelengths. Waves in shallow water are not dispersive.
			# The dispersion of ocean waves has been accurately measured, and observations of dispersed waves can be used to track distant storms.
			# The shape of the sea surface results from a linear superposition of waves of all possible wavelengths or frequencies traveling in all possible directions.
			# The spectrum gives the contributions by wavelength or frequency to the variance of surface displacement.
			# Wave energy is proportional to variance of surface displacement.
			# Digital spectra are band limited, and they contain no information about waves with frequencies higher than the Nyquist frequency.
			# Waves are generated by wind. Strong winds of long duration generate the largest waves.
			# Various idealized forms of the wave spectrum generated by steady, homogeneous winds have been proposed. Two important ones are the Pierson-Moskowitz and JONSWAP spectra.
			# Observations by mariners on ships and by satellite altimeters have been used to make global maps of wave-height. Wave gauges are used on platforms in shallow water and on the continental shelf to measure waves. Bottom-mounted pressure gauges are used to measure waves just offshore of beaches. And synthetic-aperture radars are used to obtain information about wave directions.

Meylan at 23:52, 28 October 2006

2006-10-28T23:52:36Z

← Older revision		Revision as of 23:52, 28 October 2006
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	~~Problems from~~ geophysics ~~in which water waves are important~~.		Water waves have many applications in geophysics.

	~~[[Linear Theory of Ocean Surface Waves]]~~

	~~[[Nonlinear Waves]]~~

	~~[[Waves and the Concept of a Wave Spectrum]]~~

	~~[[Ocean-Wave Spectra]]~~

	~~[[Wave Forecasting]]~~

	~~[[Measurement of Waves]]~~

	~~[[Important Concepts]]~~

Syan077 at 04:03, 29 September 2006

2006-09-29T04:03:44Z

← Older revision		Revision as of 04:03, 29 September 2006
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	[[Waves and the Concept of a Wave Spectrum]]		[[Waves and the Concept of a Wave Spectrum]]

	[[Ocean Wave Spectra]]		[[Ocean-Wave Spectra]]

			[[Wave Forecasting]]

			[[Measurement of Waves]]

			[[Important Concepts]]

Syan077 at 02:45, 29 September 2006

2006-09-29T02:45:32Z

← Older revision		Revision as of 02:45, 29 September 2006
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	[[Nonlinear Waves]]		[[Nonlinear Waves]]

			[[Waves and the Concept of a Wave Spectrum]]

	[[Ocean Wave Spectra]]		[[Ocean Wave Spectra]]

Syan077 at 09:20, 27 September 2006

2006-09-27T09:20:56Z

← Older revision		Revision as of 09:20, 27 September 2006
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	[[Linear Theory of Ocean Surface Waves]]		[[Linear Theory of Ocean Surface Waves]]

			[[Nonlinear Waves]]

	[[Ocean Wave Spectra]]		[[Ocean Wave Spectra]]

Syan077 at 10:22, 26 September 2006

2006-09-26T10:22:42Z

← Older revision		Revision as of 10:22, 26 September 2006
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	Problems from geophysics in which water waves are important.		Problems from geophysics in which water waves are important.

	[[Linear Ocean Waves]]		[[Linear Theory of Ocean Surface Waves]]

	[[Ocean Wave Spectra]]		[[Ocean Wave Spectra]]

Meylan at 00:40, 26 September 2006

2006-09-26T00:40:36Z

← Older revision		Revision as of 00:40, 26 September 2006
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	[[Linear Ocean Waves]]		[[Linear Ocean Waves]]

			[[Ocean Wave Spectra]]