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Tuesday, March 22, 2011

tsunami wavelength

The wavelength of wind swell waves is much shorter than that of tsunami.

The wavelength of wind swell waves is much shorter than that of tsunami.

The wavelength of a tsunami is set by the width of sea floor deformation

The wavelength of a tsunami is set by the width of sea floor deformation

 in reproducing the effects of a tsunami is their super-long wavelength,

in reproducing the effects of a tsunami is their super-long wavelength,

Regardless of their origin, tsunamis evolve through three overlapping but

Regardless of their origin, tsunamis evolve through three overlapping but

 proportional to its wavelength, tsunamis not only spread at high speeds,

proportional to its wavelength, tsunamis not only spread at high speeds,

 only a few centimeters high but the wavelength around one kilometer.

only a few centimeters high but the wavelength around one kilometer.

The Tsunami Wave

The Tsunami Wave

Wavelength hundreds of miles. Speeds of 500 mph +. What causes Tsunami?

Wavelength hundreds of miles. Speeds of 500 mph +. What causes Tsunami?

Consider again the 2004 tsunami: it had a wavelength of

Consider again the 2004 tsunami: it had a wavelength of

Pacific wide tsunamis are a rare phenomenon, occurring every 10 - 12 years

Pacific wide tsunamis are a rare phenomenon, occurring every 10 - 12 years

(Credit: UNESCO - International Tsunami Information Centre)

(Credit: UNESCO - International Tsunami Information Centre)

Shallow-water waves (tsunami). Here the wavelength is much greater than the

Shallow-water waves (tsunami). Here the wavelength is much greater than the

Regular waves (caused by the wind) are very different from tsunami waves.

Regular waves (caused by the wind) are very different from tsunami waves.

The depth and topography of the sea determines the form a tsunami wave takes

The depth and topography of the sea determines the form a tsunami wave takes

A tsunami is a series of waves of extremely long wavelength that are usually

A tsunami is a series of waves of extremely long wavelength that are usually

Tsunami waves slowing, shortening, and heightening as they come ashore.

Tsunami waves slowing, shortening, and heightening as they come ashore.

The model shows the variation in wavelength and height as the tsunami

The model shows the variation in wavelength and height as the tsunami

The model shows the variation in wavelength and height as the tsunami

The model shows the variation in wavelength and height as the tsunami

 when generated at an existing coastline reach a maximum nearly instantly

when generated at an existing coastline reach a maximum nearly instantly

The USGS International Tsunami Survey Team (ITST) recently assessed the

The USGS International Tsunami Survey Team (ITST) recently assessed the

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