Questions tagged [tides]
Tides are the periodic fall and rise of sea-level due to gravitational forces of the moon, sun or earth-rotation. When asking questions specifically about tides, use this tag and also include the [ocean], [moon], [sun] or [earth-rotation] tag if appropriate.
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Have we mined more on earth than 1% mass of moon? Because doing that to moon could potentially effect its gravitational pull
They say humans would need to mine 1% of moons mass to have an effect on earth's gravitational pull.
Since the moon is 1.2% of the size of earth (tiny) & the minerals mined on the moon will be ...
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How can a tidal height be lower than 'Chart Datum'/'LAT' e.g 'Lowest Astronomical Tide'?
We just had a very low low tide in the UK, an equinoctial tide on the 12th of March that was calculated as -0.13m above chart datum, i.e 13cm below the 'Lowest Astronomical Tide'.
Check here for tidal ...
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How to de-tide a daily averaged sea level data?
Coud you help me to resolve this situation? : I have a raw daily averaged sea level time series, as you know when we perform a harmonic analysis (e.g. using T_Tide from MATLAB) we need to put our data ...
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Difference between two types of spring tides that occur every month
A spring tide is an unusually high tide that ooccurs when the sun, earth, and moon are colinear. I understand why this would be the case when the earth is on the far side of the sun and moon. The ...
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were can I find the Greenwich equilibrium argument for tidal prediction(Vo+u)?
the closest i've got was with a table in the following manual that only went up to the year 2000.
https://tidesandcurrents.noaa.gov/publications/SpecialPubNo98.pdf
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Do tidal forces affect subduction?
I know subduction in plate tectonics is mainly density driven.
Probably a hypothetical question, but can weaknesses caused by tidal forces have an influence on the start of a subduction zone? Would ...
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Reason behind diurnal tides
I know that an area has a diurnal tidal cycle if it experiences one high and one low tide every lunar day. Many areas in the Gulf of Mexico experience these types of tides. I read that:
Diurnal tides ...
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How to construct the tide signal from harmonic constituents?
I am trying to reconstruct the astronomical tide time series from harmonic constituents (calculated from T_Tide).I am using the equation that all knows H(t) = Amplitude * cos ( t * harmonicSpeed + ...
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How do I determine the phase lag for a tide
I want to determine the height of a sine wave for some tidal constituents for which I would use the following equation: 𝑌(𝑡)=𝐻cos(𝜔𝑡−𝜙), where H is the amplitude, 𝜔 is the speed of rotation, t ...
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Do the 600 satellites that orbit the Earth have any gravitational pull on the tides like the moon?
I know that space is big and satellites are small compared with the moon, but do they have, or will they if we get more, any effect on the sea and ocean water on the earth?
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What would be the effect of a geostationary moon?
What kinds of differences from our Earth would we see with a moon in a geostationary orbit over the equator? Assuming the gravitational pull is roughly the same as it is with ours (my back of the ...
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Why is the time interval between tides so irregular?
Looking at the tidal calendar for the German North Sea, I wonder why the interval between times is so irregular. Internet searches lead to pages that say the tides should be regular 24 hours 50 ...
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Velocity boundary conditions from water depth time series
Currently, I am setting up a hydrodynamic model for a coastal zone. For this purpose I need to impose the velocity and water level at the open boundary.
Tidal models (e.g. TPXO) can give both velocity ...
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Effects of Dredging Estuary Channel on Water Flow
Is it possible to make some generalizations about the hydrographic effects of dredging a channel into an estuary? Or is it too complex a problem and each case must be considered independently?
Let me ...
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How large were Mars' ocean tides and to what extent could they keep the oceans mixing and tend to keep salinity uniform? Has this been modeled?
This answer to Salinity of Martian water 3.5 Billion years ago in Astronomy says that most estimates of Mars' ocean's salinity are pretty high;
The article "Water Activity and the Challenge for ...
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