Questions tagged [oceanography]

Oceanography is the branch of Earth science that studies the ocean. It is also known as oceanology.

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1answer
89 views

How can oceanic Rossby waves move from East to West?

I can find several examples of Rossby waves, mainly atmospheric, moving towards East. Is it possible that they also move towards West?
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1answer
293 views

How is the total area of the world's oceans 361 million sq km?

How is the total area of the world's oceans 361 million square kilometres? I can't see how the five individuals ones add to that. When I Google how many squared km is this/that ocean, I get When add ...
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Does anyone know of any studies comparing juvenile and adult abundance data for an ontogenetic reef fish? [closed]

I'm trying to look into relationships between juvenile Hogfish which recruit in sea grass habitats to adult abundance data that move to deeper offshore reef and hard bottom habitat. I have data from ...
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How do Rossby Waves in the ocean form?

So on land, I believe that one factor in their formation is due to inhomogeneities in surface heating between land and ocean (and also inhomogeneities in surface heating due to terrain effects like ...
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1answer
321 views

What is the area with the largest velocity vertical shear in the ocean?

While there are areas with really strong tidal currents in the ocean, these currents tend to be primarily barotropic. My question relates to the largest vertical difference in velocity and it is ...
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1answer
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About meddies: what are they? How do they form? How are they maintained?

A "meddy" is usually described as a Mediterranean Water eddy. While many meddies have been observed in recent years, I would want to know what are the common characteristics of such features (...
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2answers
85 views

Does Earth's rotation cause sea levels to increase from east to west?

Intuitively if the Earth were to rotate fast enough from west to east, the average sea level would be noticeably higher on the west edge of the oceans. Does Earth's rotation cause this effect in ...
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1answer
135 views

Carbon dioxide and ocean acidification based on temperature

For our assignment, we are required to analyse and compare the $\ce{CO2}$ level (in both ocean and air) of two different sites. Theoretically, shouldn't the $\ce{CO2}$ level of a colder region (e.g., ...
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1answer
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The effect of CO2 concentration on the pH of the ocean

I'm confused about how increased $\ce{CO2}$ concentration in the atmosphere affects the pH of the ocean. The increase in $\ce{CO2}$ concentration means the pH of the ocean will decrease (by several ...
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1answer
220 views

Carbon's role in ocean acidification

This might seem like a basic question, but I'm a little confused about the effects on ocean acidification of different carbon compounds. I have heard that increased levels of carbon dioxide in the ...
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0answers
353 views

How much ocean water is currently being displaced by ships?

According to Statista, as of January 2017, there are approximately 52,000 ships currently operating in the merchant fleet and 11,000 of these are considered bulk carriers. How many ships are there ...
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1answer
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Relationship Between Ratio of Atmospheric Gases and Ocean Gases

A version of this question was posted in Chemistry SE and Worldbuilding SE but I've been told it wasn't appropriate to either SE. I was told to give this SE a chance. If you think it doesn't belong on ...
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1answer
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SeaDataNet's NEMO software, stuck on data validation?

I'm new to the community and this is my first question, I would appreciate in advance your patience and your time to read this post. I'm currently processing some oceanographic data such as salinity, ...
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Lanes of flat ocean surface in coastal waters

When the ocean is still, i.e. there aren't waves that disturb the surface, you often see "lanes" of water that seem flat as opposed to areas where the wind causes ripples. What causes this?
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1answer
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Why does vertical diffusivity increase with depth in the ocean?

In Talley et al.'s Descriptive Physical Oceanography, figure S7.4, it seems that vertical Eddy diffusivity increases with depth between 0 and 30 degrees latitude. Why is this? I thought that ...
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1answer
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What are these river/canyon-like carvings in the ocean?

Browsing around Google Maps, I came across this off the south-west coast of Ireland It looks very consistent with the shape rivers and their tributaries might make, but it has me puzzled since it's ...
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1answer
77 views

Understanding timescales within the day period

I stumbled across a timescale which I am unsure of. What does it mean by intra-daily scale variability? I would also like to know if intra-tidal scale variability is of any use for capturing daily ...
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Use of radiolarian fossils to assess CO2 levels in early geological periods

Radiolaria are microscopic marine protozoans commonly found as fossils in rocks dating as far back as the early Cambrian. Their silica skeletons are damaged by high levels of CO2, so is it possible to ...
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Is Hudson Bay part of the Arctic or the Atlantic Ocean?

Years ago I learned that the Columbia ice field was North America's triple divide point: water flowing from this ice field could drain into the Artic, the Pacific, and the Atlantic Ocean. Something I ...
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54 views

Ocean Acidification - The effect of CO2 concentration on the pH of the ocean [duplicate]

I'm confused about how increased CO2 concentration in the atmosphere affects the pH of the ocean. The increase in CO2 concentration means the pH of the ocean will decrease (by several chemical rxns). ...
4
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4answers
153 views

Have the oceans dissolved water vapour?

The oceans have dissolved gases as N2 or O2. Henry's law establishes there is an equilibrium between the atmospheric concentration of a gas and its concentration in the ocean. The atmosphere has H2O(...
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4answers
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Why are there waves in seas towards shore - even in night?

Waves are mostly caused by Friction of wind on surface of water. Wind blows from sea to land in day and land to sea in night due to pressure and temperature difference. So it is intuitive why there ...
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1answer
76 views

Most corrosive seawater areas in world

I am looking for any studies or maps detailing the average salinity and temperature for areas of the Earth's oceans. As an extra if anyone has data or maps on areas with large amounts of in-trained ...
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1answer
108 views

Is the ocean a carbon sink when considering only the biospheric component?

Most people knows that the ocean overall is a carbon sink, but a big part of the sink is due to chemical equilibrium (via dissolution) with the atmosphere (for ref: https://link.springer.com/article/...
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Why is the Ocean water on the west Coast so cold comparing to the East coast?

Even at similar latitudes they appear to be quite different from one another.
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1answer
72 views

Increase Evaporation from oceans

I would like to ask you about evaporation from sea water. Can you increase evaporation by spraying seawater to the air? Is there any difference compared to freshwater spraying (aerosol particles)?
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Would a volcanic winter trigger an oceanic “spring”?

There is large amounts of observations supporting the effects of volcanic eruptions on climate: A long term subtle warming effect due to $\small\mathsf{CO_2}$ and a short term, but more intense ...
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2answers
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Coral Reef and Volcanic Islands

I have two questions regarding coral reef and volcanic islands. When a new volcanic island is formed, how much time generaly passes before a coral reef starts to form around the island? Another ...
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1answer
238 views

How to solve libnetcdf.so.12: cannot open shared object file in pyferret?

My pyferret was working perfectly until I had installed netCDF4 and now it is throwing up this error ...
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1answer
154 views

How do I start with Modular Ocean Model version 6 i.e. MOM6 on my ubuntu linux machine?

I am learning ocean modelling and have started with MOM6. I needed guidance on where to start from and how to run the model on my local machine (Ubuntu) to perform various tasks such as regridding or ...
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1answer
99 views

History of the Arctic Ocean

Much of the Arctic Ocean is fairly shallow compared to other oceans. There must have been times in the past during severe ice ages that a lot of what is now the ocean bed was above sea level. When was ...
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1answer
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Result of floating-iron-balls in the mid-pacific?

I had an idea to make green islands from mid-pacific plastic: Release a million tons of floating iron balls there, which will stay in the same regions as the plastic and hopefully cause a veritable ...
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1answer
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On La Vagabonde what Citizen Science is Possible? [closed]

The Catamaran La Vagabonde is a high tech vessel that's designed to be as carbon neutral as possible. Subject to the constraints of space, time and safety, what citizen science projects would be ...
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How can methylmercury in the ocean be reabsorbed into the atmosphere?

The Sacramento Bee news article Toxic fog may be poisoning some of California’s mountain lions, study says says Algae in the ocean convert mercury to methylmercury, its most toxic form, which can ...
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1answer
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Creating a general log sheet for CTD and ADCP for fieldwork

It is close to the deadline for conducting research on a research vessel for the Irish Sea (one month left). I'm currently a student and would like some descriptive observational data/variables needed ...
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1answer
60 views

Why does the ocean seem much cleaner than the bay I live near

I live in Melbourne near a bay, and it always seems really dirty, whenever I go out to the open ocean the water always seems much cleaner. Is there a reason for this, does the bay trap pollution or do ...
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1answer
75 views

Quickly breeding oysters to combat oceanic pollution?

I've been doing some wikipedia binging and it's come to my realization that it may be in the Earth's best interest to raise the world oyster population as quickly as possible. The basis for this is ...
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3answers
68 views

Why is reverse osmosis desalination the dominant method used and not heat-based methods? Also why is brine being dumped back into the ocean? [closed]

So I was recently watching this video regarding desalination efforts around the world and the viability of desalination as a means to provide humans with freshwater. I had a few questions: 1 - They ...
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1answer
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What's really happening with “stormquakes”?

The PBS Newshour article Scientists discover big storms can create ‘stormquakes’ says: A stormquake is more an oddity than something that can hurt you, because no one is standing on the sea floor ...
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9answers
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Why does the salt in the oceans not sink to the bottom?

This is something that just occurred to me. If heavier elements sink, then how can the entire ocean be salty? Shouldn't the 'salt', because of its density, all sink to the bottom of the ocean? In ...
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Why was the temperature change greater in higher latitudes than in lower latitudes during the Paleocene/Eocene thermal maximum?

In the "Plankton cooled a greenhouse", which is the article written by Birger Schmitz, it is stated that the subtropical regions became warmer during the PETM(Paleocene/Eocene Thermal Maximum) but the ...
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1answer
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How does nature dilute Ocean and Seas so that we can swim in them?

I have a question about the seas and ocean we swim in. How does the Ocean get rid off all the natural pollutants (for example dead animal debris) and man-made pollutants (human waste, garbage, etc)? I ...
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0answers
153 views

Cooling effect from the oceans in global warming

The ocean soaks up about 90 percent of the heat of climate change, because of ocean heating. When using the formula of Svante Arrhenius to calculate forcing due to atmospheric $CO_2$ $\Delta F=\alpha\...
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1answer
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The halocline and sonar

 I studied oceanography many years ago at university and recall a lecturer claiming that submarines in the second world war could pass undetected through the entrance to the Mediterranean.  ...
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1answer
162 views

Beta plane approximation: variation of Coriolis parameter

The Beta plane approximation put me in confusion. Beta plane approximation explain me how the Coriolis parameter changes with latitude. Beta parameter changes with the cos(latitude) but this is ...
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2answers
690 views

What is a Dry Sea

I wanted to create my own unique worlds. I wanted to take my readers to places they wouldn’t go to in any other story and show them things they wouldn’t see anywhere else. For instance, the Dry Sea in ...
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2answers
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Why do high tides vary month to month?

I've noticed that some ‘highest‘ high tides in one month are bigger than the highest high-tide of previous months. Why is this so?
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Caspian Sea oil deposits

Azerbaijan appears to have vast development in its oil sector. Images on google earth show oil platforms connected by road ways far out into the Caspian Sea of the coast of Baku. Why is the majority ...
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2answers
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What is this island or reef 600 km east of Marianas Islands?

This map shows an island a bit east of the Marianas. I took a screenshot of the relavent part. I hunted around for it in Google Earth with no luck, but I did find a promising candidate here: I could ...

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