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If a very huge Earthquake occured anywhere on Earth could waves emerge to come together again on the opposite side?

It is called "antipodal focusing". See for example Antipodal focusing of seismic waves observed with the USArray. We present an analysis of the M-w = 5.3 earthquake that occurred in the Southeast ...
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23 votes
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Why are there waves in seas towards shore - even in night?

Ocean waves (and also in mediterranean type seas and larger lakes, but on a smaller scale) are generated by two processes: locally generated waves ("wind waves"), which follow the direction of the ...
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22 votes
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Why do Tsunamis travel slower than sound?

Tsunamis and sound waves are different types of wave - one is a transverse wave and the other is a longitudinal one. Let's look at the factors that influence the speed of each one. Tsunami - ...
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21 votes
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What does it mean for waves to "feel" the bottom?

In water wave physics, when we say that the wave "feels" the bottom, we mean that the water depth affects the properties of the wave. The dispersion relationship for water waves is: $$ \omega^2 = ...
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20 votes
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How to distinguish P, S, Love, and Rayleigh waves in a seismogram?

There are two important ways to recognize different types of waves in seismic records: Their velocity. These waves travel at different speeds: P-waves are fastest, then S-waves, then Love waves, then ...
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17 votes

Why is a seismogram interpreted as a convolution?

In simplest terms, it simply means that: if the source signal is shifted by some amount of time Δt, but otherwise unchanged, then the seismogram will also be shifted by Δt, but otherwise ...
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17 votes
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Potential explanations of Red Sea crossing

To my knowledge, the best study looking at potential explanations for the Red Sea crossing is the one by Nof and Paldor (1992). They present a couple of plausible scenarios for the crossing. The main ...
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17 votes

What does it mean for waves to "feel" the bottom?

Feel the bottom refers to the fact that the wave-induced velocity field extends all the way from the top of the water column to the bottom of the water column. When the wave "feels the bottom" it ...
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17 votes
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What causes waves to form the characteristic "breaking" shape as they approach the shoreline?

The physical process you describe is known as wave shoaling. At the basic level, waves propagating into shallow water become shorter and higher, and consequently, steeper. In shallow water, the ...
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16 votes

P wave to S wave conversion

P and S waves are fundamentally different, when it comes to properties of the wave. An example might be that P waves can travel through fluids while S waves cannot. However, when it comes down to wave ...
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14 votes
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How do Rossby Waves in the ocean form?

First, inhomogeneities in the ocean are in fact quite common. There are density gradients in both horizontal and vertical directions and those gradients result in the baroclinic circulation of the ...
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13 votes
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Why can't wave models model storm surge?

Yes. Spectral wave models cannot model storm surge because the wave energy balance equation that they integrate does not describe the physical processes associated with storm surge. Wave models solve ...
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12 votes
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Placement of crustal thickness estimation from 1D inversion of surface wave dispersion curves

This is a very good question, not just important to seismic inversion, but also modeling in general. Lets set this problem up differently. Lets say point's A and D are nodes. Each node represents a ...
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12 votes

How do Rossby Waves in the ocean form?

To add to the excellent answer by aretxabaleta: This is what happens for eastward flow over a step change in depth. Note that the wavy pattern is seen from above, and it veers right due to the step ...
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12 votes
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Forecasting oceanic rogue waves

There are few known mechanisms that lead to the generation of Rogue waves, such as the ones you mentioned, but essentially all Rogue waves are the due to the nonlinear wave dispersion characteristics ...
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12 votes
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What visual wave behaviour help to tell if a tide is going in or out?

As SimonW points out strong tidal currents will modify the wave shape and significant height. The Wolf & Prandle (1999) study provides a neat summary description of the effects of currents (of ...
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12 votes
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Stability correction factor in the Wavewatch III wave model

The stability correction factor ASF is related to the effects of atmospheric stability (function of buoyancy and shear) on wave growth, and has been implemented in ...
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10 votes

Software for sediment transport modeling

I think the best option for sediment transport modeling is the Community Sediment Transport Modeling System (CSTMS) package that was developed for ROMS. CSTMS was created by a group of sediment ...
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10 votes
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Whitecapping in ocean surface waves

Whitecapping refers to the steepness-induced wave dissipation in deep water during which some air is entrained into the near-surface water, forming an emulsion of water and air bubbles (foam) that ...
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10 votes
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Are these clouds exhibiting gravity waves?

These are rotor clouds, and are manifestations of "Lee Waves", a particular kind of internal "gravity wave" (better defined as "buoyancy effect"). Forced convection helps form these clouds as warm, ...
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9 votes
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Is wave spectrum always positive and why?

Yes, wave variance or energy spectrum, direcional or non-directional is positive-definite as @aretxabaleta said in the comment. In linear water-wave theory, the surface elevation is described as a ...
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9 votes

Why do deviated wells show poor correlation to seismic data?

Two-way time to depth calibration is a vertical problem. How you handle deviated wells probably depends a bit on how you are tying the wells. Here are two things to watch out for: You should be ...
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9 votes

Where can I obtain ocean wave data of the Southeast Asian region?

The only open and ongoing data source for in-situ ocean wave measurements I am aware of is the National Data Buoy Center. Though NDBC manages data service from plenty of moored buoys in the Gulf of ...
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9 votes
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What is a vertical wavenumber?

In the picture above we see an internal wave propagating in the direction of the wavenumber vector $$\mathbf{K} = k \mathbf{e_x} + m \mathbf{e_z}$$ which (in 2D) is given by the vector sum of its ...
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8 votes

What causes waves to form the characteristic "breaking" shape as they approach the shoreline?

One thing that I would add is a discussion of a physical parameter that is a simple measure of whether a wave is going to topple or not. The Froude number is defined as the ratio of the maximum ...
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8 votes

How to distinguish P, S, Love, and Rayleigh waves in a seismogram?

You can automatically detect the P and S waves for an event but I don't know of a way to automatically extract the Rayleigh and Love waves directly from the seismograms. As @kwinkunks points out ...
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8 votes

How do Kelvin waves determine surface temperature variations?

Coastal trapped Kelvin waves are important processes contributing to variability in the sea surface height and temperature near the coast. Field studies have measured large temperature fluctuations ...
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7 votes
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Should one extract wavelet from seismic or well log for the generation of synthetic traces?

Seismic, but... There are lots of ways of estimating wavelets. None of them rely on well logs alone, because they don't contain any information about the wavelet. Some methods are purely statistical, ...
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7 votes

Software for sediment transport modeling

Large parts of Delft3D - including, I think, the sediment transport module - are available in an open source form. The GUI is not currently open source, but (a) Deltares have been offering licences ...
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7 votes

How to distinguish P, S, Love, and Rayleigh waves in a seismogram?

To supplement the current and very good answers , we can look at a seismogram: from (http://www.bgs.ac.uk/discoveringGeology/hazards/earthquakes/images/dia_seismogram.jpg) As you can see, we know ...
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