Questions tagged [ocean]

For questions about bodies of salt water large enough to sustain their own internal currents and do not drain to any larger body of water. Covers both currents, navigation, and ecology.

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How could a large continent in the North Atlantic Ocean affect ocean currents? [closed]

This is my first time really using stack exchange so yeah. forgive me if i messed something up or if im not using it right. Ive been making an alternate earth and i have repeatedly stumbled upon an ...
PurePerfection786's user avatar
4 votes
3 answers
287 views

How would a toxic halophilic bacteria (vibrio vulnificus) mutate and make all coastlines uninhabitable?

I am writing a speculative fictional story set in the future, where the bacteria Vibrio vulnificus mutates and makes life so dangerous for humans along the coast that everyone has to retreat into the ...
Rachel Cox's user avatar
17 votes
9 answers
4k views

Is it possible to have very different sea levels?

This image demonstrates what I'm trying to do. Basically the ocean "drops" down to a lower level via a waterfall, with different sea levels, sort of like how we have "locks" on our ...
Sam Moon's user avatar
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3 votes
1 answer
121 views

Conditions of a piranha solution ocean

My super Earth has oceans of entirely piranha solution, that is, a mixture of sulfuric acid and hydrogen peroxide. The planet is very carbon rich and the crust is about 98% diamond and 2% quartz. The ...
tungstn's user avatar
  • 41
5 votes
1 answer
493 views

Where should my currents go?

I'm trying to figure out how to place currents in the green area. There doesn't seem to be anywhere for them to come from, and I seem to have backed myself into a corner with the geography of this ...
www's user avatar
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8 votes
5 answers
2k views

What is Plausibility of a Megalodon sized creature attacking a human? [closed]

I have a speculative zoology world with large sea creatures. The astrobiologists don't have a submarine, but they have hi-tech scuba suits. I'm wondering about the reasons for why such large creatures ...
New_Archaeoceti_325's user avatar
2 votes
4 answers
296 views

What conditions would be needed to make it more viable to have offshore workers supported by towns at sea instead of going to shore?

In this world the sea is far more utilized than today. Offshore oil drilling, wind & solar farms, rocket launches, hydrogen production, aquaculture, and mining are all big industries. In real life ...
OT-64 SKOT's user avatar
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2 votes
2 answers
102 views

How early technologically could manganese nodules be economically dredged if there was a serious desire to do so?

While the idea of deep sea mining has only started to see significant effort in recent times, there were earlier efforts in the 1960s and 1970s. While they were first discovered in 1868, first ...
OT-64 SKOT's user avatar
  • 4,426
2 votes
1 answer
45 views

How differently would ocean currents be affected by smaller, shallower abyssal plains?

On Earth, the abyssal plain is the planet's largest habitat, comprising of 70% of the oceans. Another important point is that plain can be found between 10,000 and 20,000 feet deep. In this alternate ...
JohnWDailey's user avatar
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9 votes
2 answers
795 views

Effects of deep oceans? [closed]

For my current project, I think of making one of the planets have oceans that are on average 10km deep with some regions even being as deep as 40km. The planet is roughly Earth-sized, maybe a little ...
Doguskang's user avatar
  • 529
3 votes
1 answer
311 views

How do ocean currents work on a tidally locked planet?

I am currently designing a tidally locked world with a big enough ocean to transfer heat from the day side to the night side and vice versa. Here is a map of my world: The darker sides are supposed ...
ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ's user avatar
3 votes
1 answer
100 views

How would benthic marine organisms like shellfish and crabs adapt to a hypersaline environment? [closed]

In this world of mine, through a mysterious phenomenon called magick(tm) a God made it so all the salt in the world is either in a few location, alpine salt lakes or at the very bottom of the ocean. ...
A Shattered Day's user avatar
4 votes
3 answers
161 views

What is the temperature range for surface oceans?

I'm trying to calculate the habitable zone for different planets based on albedo and greenhouse effect potency. I'm assuming that a habitable planet has an albedo of 20 - 40 and a greenhouse potency ...
Sussus Amogus's user avatar
1 vote
1 answer
117 views

How deep can the oceans on my planet realistically be? [duplicate]

I want to know how deep the oceans of my super-Earth can plausibly be. Is there any way to calculate the depth of my oceans? Here are the characteristics of my planet to help with the calculations: ...
user107608's user avatar
0 votes
1 answer
165 views

How to make alcohol in the ocean?

Last night my friends and I visited a pub in Atlantis and have a great time with the merfolk, everything seems pretty normal until I noticed there they don't serves vodka, in fact they don't consume ...
user6760's user avatar
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7 votes
6 answers
2k views

How can an octopus paint underwater?

In my story, humanity engages in World War III, ultimately bringing about their extinction. The irradiation of the ocean causes a mutation in an octopus (Enteroctopus Dofleini), enabling her to pass ...
Wyvern123's user avatar
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3 votes
3 answers
3k views

If the entire ocean on Earth were poured into Mars instantly, how long would it last?

I know the surface gravity of Mars is 38% of ours and the liquid core has already shut down a long time ago, so its water cycle is virtually non existent. Weather forecasts are also bad: a seasonal ...
user6760's user avatar
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12 votes
5 answers
3k views

Could aquatic aliens use bubbles in microscopes?

In the subsurface oceans of a fundamentally Europa-like moon, (covered in ice, but with an interior warmed by tidal heating etc.) a race of sapient aliens has evolved. These aliens are very interested ...
user98816's user avatar
  • 8,583
3 votes
1 answer
239 views

Are My Ocean Currents Realistic for a Supercontinent?

I followed tutorials online and drew out my ocean currents. However I don’t have a strong grasp on the concept. My world is primarily Earth-like with a retrograde spin and an axial tilt of 174 degrees....
Anubia-Bastet's user avatar
1 vote
4 answers
453 views

Solar Flux required to boil oceans?

What amount of stellar flux that a planet receives is required to boil away all oceans on said planet? We're thinking of Q🜨 (Earth = 1.00 Q🜨). For comparison: Venus ~ 1.93 Q🜨, Mercury ~ 6.57 Q🜨, ...
Sussus Amogus's user avatar
17 votes
11 answers
4k views

What could lead a large ocean on a planet's surface to recede completely only to reappear later on in a cyclical process?

I don't just mean tides or large-scale floods and droughts but a premise where one or more large bodies of water (or even every such body if that makes it easier) disappear, only to reappear one or ...
Qwokker's user avatar
  • 471
2 votes
3 answers
408 views

An ocean-planet made out of deadly, non-water chemicals

I'm currently working on a comic-series set in a solar-system that isn't ours, and i'm reworking most of my planets. One of them, a cold ocean-planet below freezing temperatures that orbits its k-...
NimRad's user avatar
  • 1,120
2 votes
1 answer
122 views

Can ammonia and sulfur dioxide oceans coexist?

I have a world that has a 0.2 bar atmosphere and at -65°C, so theoretically, ammonia and sulfur dioxide can exist as a liquid in those conditions. What if an ocean of both liquids existed? Would it ...
Fox Studios's user avatar
4 votes
3 answers
1k views

Is this ocean-planet stable?

I'm building a cold, water-based ocean-planet for my current setting, its temperature being below 0°c at all times and in all of its regions. Even despite the freezing temperatures, the planet's ...
NimRad's user avatar
  • 1,120
2 votes
0 answers
45 views

Help with ocean current details on my terrestrial planet

I'm re-visiting the surface ocean currents on my world and was wondering about a few things. I know Ocean circulation is very complex and hard to say definitively what would happen but I think it's ...
Tamrak's user avatar
  • 123
4 votes
1 answer
485 views

Behavior of narrow straits between oceans

I am trying to build a world that would have two oceans separated by a narrow sea/strait/passage. Think of Drake's Passage, but bordered by large land masses from both north and south, like the ...
Maksim Ubaydulaev's user avatar
5 votes
1 answer
243 views

What's the search area for a meteorite that lands in the ocean and sinks to the ocean floor?

A meteorite survives entry and lands in the ocean. For various reasons, people would like to recover the core of this meteorite. Observers of the landing are able to narrow down the location of its ...
Oblivious Sage's user avatar
10 votes
2 answers
2k views

How deep under water could a vessel go?

The Trieste submarine reached the bottom of the Mariana trench using some clever techniques like gasoline ballast, but let's assume the ocean just kept going to the core of the earth (or maybe the ...
Leon Frickenschmidt's user avatar
1 vote
0 answers
180 views

Consequences of an Ultra Deep Ocean [closed]

Edit: Let’s say the Earth’s sea bottom, worldwide, became deeper by about 600 more meters. What effects would the added pressure have on the Earth’s crust, if any at all?
Thunderhammer's user avatar
1 vote
2 answers
317 views

The Finer Details Of A Global Ocean Planet

Some statistics (forgive the redundancy): Radius - 5,400 mi or 8,690.458 km Diameter - 10,800 mi or 17,380.915 km Circumference - 33,929.2 mi or 54,603.754 km Mass - 7.33x10^24 kg or approximately 1....
DLS3's user avatar
  • 11
2 votes
0 answers
94 views

An earth-like society with popular submarine travel [closed]

So I have recently been reading the new issue of "Just like us" from Feb 2245, the one that features the plane Aurora on its frontpage. I know that we've made a contact with these guys a ...
SBF's user avatar
  • 229
1 vote
0 answers
69 views

Social and Technological Constraints in an Aquatic Society [closed]

If humans had evolved as aquatic mammals, as opposed to terrestrial mammals, what aquatic resources would be available which were not available to terrestrial societies. Some foundational technologies ...
Jared's user avatar
  • 41
3 votes
1 answer
130 views

How Would A Liquid Water Ocean Behave When Interacting With A Supercritial CO2 Ocean?

Assume an exoplanet like a colder (roughly habitable temperatures throughout) Venus with liquid water and a layer of supercritical carbon dioxide at the bottom of it's ocean basins. What would happen ...
duke-of-k's user avatar
5 votes
2 answers
414 views

If you hypothetically drained the ocean, would the crust remain thick enough to have violent volcanic activity?

Suppose you drained the ocean without any repercussions caused by the transport and allocation of that much water. Looking at land like the ring of fire or deep sea thermal sites, would the crust ...
Quinn's user avatar
  • 1,206
0 votes
1 answer
173 views

What is the climate of an otherwise ocean planet with a huge landmass along the equator? [closed]

I am coming up with a new planet idea inspired by One Piece. I'm imagining a planet with the same mass, volume, and sunshine as Earth. The difference is that it is mainly an ocean planet. There are no ...
Rhymehouse's user avatar
  • 3,563
1 vote
2 answers
195 views

Would merpeople be able to survive in relatively still water?

So merfolk are obviously fantasy creatures, and their biology depends entirely on the designs of the writer. For my merfolk, I am leaning less into the accuracy territory, and simply looking for ...
WasatchWind's user avatar
  • 3,207
7 votes
6 answers
1k views

What is the maximum amount of land (percentage-wise) a habitable planet can have?

Earth is our only example of a habitable planet. The surface of Earth is 29% land and 71% ocean. I am wondering what other land ratios can create a habitable planet. Half a billion years ago, Earth ...
Rhymehouse's user avatar
  • 3,563
2 votes
1 answer
114 views

How would the ocean currents of these inland/shelf seas work?

Outlined in ink are the relevant coastlines/continental shelves, as you can see there are two inland shelves that are inland/shelf seas. As the major ocean current ends at the southernmost shelf, I'm ...
Quintessential Consoomer's user avatar
5 votes
4 answers
275 views

City planning underwater

In my world, there is a race of fish people and merfolk. For a brief description: They are a mix of the Creature from the Black Lagoon and Luca. For pictures and extra description: What conditions ...
Crafter's user avatar
  • 2,605
2 votes
1 answer
182 views

Would Liquid CO2 form a Separate Layer Beneath the Ocean?

In the series of stories that I'm writing, I have a star system with one of its outer planets being a world with a thick carbon dioxide atmosphere, similar to venus, but it's far enough out to be room ...
John Lewis's user avatar
2 votes
1 answer
333 views

What biomes would Atlantis (mythical land in the Atlantic Ocean) have? [closed]

Atlantis is a mythical continent from Plato's writings. It was an advanced island that rivaled Athens. It lost favor with the Greek gods and as a result it fell beneath the waves. Neat story but I'm ...
Rhymehouse's user avatar
  • 3,563
2 votes
3 answers
472 views

What would cause glass to replace calcium carbonate in shells?

Sea creatures have some very pretty shells. Unfortunately, these shells are quite opaque, and much more boring to look at than they could be. So what if they were made of glass. It’s not unheard of, ...
Topcode's user avatar
  • 2,285
10 votes
3 answers
3k views

What climate would Mu, a lost continent in the Pacific Ocean, have?

Mu was a mythical continent that was believed to exist in the Pacific Ocean. It was part of pseudohistory back in the 19th Century. Hawaii and other Polynesian islands were believed to be the remnants ...
Rhymehouse's user avatar
  • 3,563
3 votes
2 answers
192 views

What would be the climate of a planet with very frequent hurricanes?

I'm writing a planet where the weather is always stormy. This planet has hurricanes and monsoons and huge thunderstorms and tornadoes on a weekly basis. The good news is that there are very few ...
Rhymehouse's user avatar
  • 3,563
2 votes
1 answer
99 views

Is a planet with a chlorinated atmosphere and water/ammonia oceans possable?

Ok, so I have an inhabited planet that has a moderately chlorinated atmosphere (7% chorine), and with oceans that are composed of a water/ammonia mix. the temperature is very cold, -50 C. I am ...
Rick Gennings's user avatar
6 votes
4 answers
273 views

A natural light source on Europa

In our solar system, Europa, a moon of Jupiter, has a large and warm ocean under the icy crust. However, due to it having a rocky core and the icy crust, there is no light in the ocean. I want to make ...
Faito Dayo's user avatar
  • 2,323
6 votes
2 answers
579 views

Could a planet have ocean basins if it did not have an ocean?

If a planet, lets call her Shiloh, had no oceans or liquid water on the surface; Could it still have deep, vast ocean basins? Or would a dry ocean basin level out over time?
KaffeeByte's user avatar
  • 1,702
16 votes
5 answers
3k views

Would merfolk gain any real advantage from mounts (and beasts of burden)?

In writing my merfolk centric fantasy novel, I've largely ignored any creatures of burden used within their society. Animals of burden were very important in the growth of human civilization, and the ...
WasatchWind's user avatar
  • 3,207
10 votes
4 answers
1k views

Precipitation on a world where the entire ocean is covered by plants?

My very fancy planet, has a green blotch approximately the size of Africa on its surface, which looks like a forest from space but is actually the planet's ocean. A sea, which, over millions of years, ...
LiveInAmbeR's user avatar
  • 10.6k
2 votes
0 answers
135 views

How could an underwater society industrialize? [duplicate]

In my world, there is a species of underwater people. They are a mix of the creatures from Luca, and the creature from the Black Lagoon. At some point, when their technology progresses, they learn ...
Crafter's user avatar
  • 2,605

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