Questions tagged [sea-level]
Questions regarding the height of the ocean's surface.
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Why is relative sea-level falling in Hudson Bay?
Why is the sea level in Hudson Bay decreasing so much? Hudson Bay is pretty far up north, much closer to glaciers. Would it make sense for it to recede at this level with sources of fresh water ...
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Does bathymetry affect ocean topography/height?
Here is a map of ocean surface height or topography:
Source: http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2010/12/mean_dynamic_topography_of_global_ocean/9930795-2-eng-GB/...
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Sea Surface Height Data
Is there a good dataset on global ocean sea surface height? I found this, http://climate.nasa.gov/interactives/sea_level_viewer, but there is no data I can download and it's hard to see the latitude ...
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Would it be geographically feasible to store water on land to counteract sea level rise?
Based on a misunderstanding of another post, I prepared an estimate of how much water would be required to lower sea level by one meter. the main question would be: could this be stored on land?
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What fraction of dry land is below sea level?
Someone just asked me if it would be practical to counter the rise of sea level by pumping water into storage on land. It struck me that if there is enough land below sea level, this would require ...
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How much of the underwater land masses within the arctic ocean is considered continental shelf?
Right now I'm in the middle of writing my master thesis which is about modelling the ocean bottom pressure (obp) under areas with sea-ice coverage.
In most Oceanic General Circulation Model's (ogcm) ...
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Are there secondary causes of sea level change?
Aside from the fraction of water stored as ice on land and temperature of the water, are there other factors that change sea level, and if so what are is the magnitudes of the these changes?
For ...
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What happens to sea level when a ship sinks?
Let's assume that a ship is traveling on the ocean and it sinks, what is the effect on sea level? Even if the effect is small, would it go up, down or remain the same?
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Potential explanations of Red Sea crossing
I am looking for a believable explanation of the Red Sea Crossing in the Bible. This would involve either strong winds(which is mentioned in the Bible) or plate tectonics which could cause land to ...
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How much does ocean cover percentage change between glacial periods? [duplicate]
Currently, oceans cover about 71% of the total area of Earth. Ice ages can cause this figure to fluctuate, by lowering the sea level and creating land bridges and other features.
How much can this ...
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Effect on sea level if the Earth stopped rotating
Would sea level change at the equator if the Earth stopped spinning? I am assuming it is currently bulging around it due to centrifugal force.
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What is the appropriate vertical datum to use globally?
When studying sea level changes, it is normal to analyze water level with respect to a common vertical datum. The most used datum is Mean Sea Level (MSL), which NOAA defines as "The arithmetic mean of ...
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Is there any link between sea-water inflitration into groundwater and nitrate?
I recently read a pop-science article about sea-water infilitration into (sweet) groundwater. One specific instance mentioned was the gaza strip: Exzessive well building and drawing of groundwater ...
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Historically, how has the fraction of Earth covered by water changed?
Today, 70.8% of the Earth is covered in water (± a few tenths of a percent depending on how you account for lakes).1 How has this figure changed over the history of the Earth, and why?
Of course, if ...
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Where does the biggest land-based ice cap reside?
I'm thinking biggest in volume, regarding which area of the planet will contribute more to a raising in sea level - were the ice in those regions to melt.
I can basically think of two candidates, ...
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What definition of "seamount" is used by the largest utilised databases of seamounts?
Appears that answering what seamounts are is a non-trivial question. My take is what matters is data, since authoritative opinions on the topic are at best subjective. As such, my position is the ...
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What is a seamount? [closed]
Per Oxford Dictionary of Earth Sciences: Seamounts are isolated, submarine mountain rising more than 1000m above the
ocean floor. The sharp, crested summits of seamounts are usually
1000-2000m ...
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How long to melt all the polar ice?
The answers to this question say that the sea level will rise 66m if all the polar ice, etc, melts.
How long will this take?
Transporting incredible amounts of heat energy to the poles and injecting ...
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How much will sea level rise if all the polar ice melts?
There are many movies about global warming, which say that melting of all polar ice would cause the whole world to suffer a huge flood. According my research (teachers, TV, Internet) people hold one ...
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What influences tide-height the most? Can I guess the height by looking on a globe?
I hope that the question title is resonably clear: What are the most significant factors which influence the tide height? I'm aware of the following couple of them:
Sun-Earth-Moon relative position (...
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Paleogene transantarctic seaway
Lawver & Gahagan (1998; 2003) hypothesized, based on sea level records and the isostatically adjusted bedrock surface of Antarctica, the existence of a Trans-Antarctic Seaway linking the Ross Sea ...
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Sea Level in Paleogeographic Maps
Most paleogeographic maps available (C. R. Scotese or R. Blakey maps for instance) show not only the shape of the continents during the concerned period but also the level of the seas and oceans (i. e....
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