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Questions tagged [currents]

For questions the dynamics of fluid (including gas) flows. This includes oceanic circulation, rivers, major winds, and atmospheric circulation.

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climate on a hemispherical planet (a planet cut in half) [closed]

An earth-sized planet has been cut in half along a meridian by higher beings. The gravity is experienced the same as if the other half was still there. Let's say there's a big magic wall that prevents ...
user113185's user avatar
0 votes
0 answers
129 views

Are these ocean currents for my planet plausible?

This is my first attempt at worldbuilding anything at this point. I heavily modelled my first planet after the Earth as my baby steps. I wanted to experiment with how climates on the planet would be ...
Jermaine Valerio's user avatar
2 votes
1 answer
71 views

Are my ocean currents acceptable?

I really don't know if this is the right place to post this. After about 6+ or so months of trial and error (and like, hours re-watching the videos Artifexian made on them), I've managed to come to ...
PurePerfection786's user avatar
6 votes
1 answer
95 views

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
5 votes
1 answer
502 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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2 votes
1 answer
190 views

Is my climate map plausible?

I've created an Earthlike planet and spent a lot of time trying to get the climate right. I have included a map of elevation and currents. Are these climates possible, given their surrounding factors? ...
www's user avatar
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1 vote
1 answer
119 views

Do my currents make my climate work? If not, how should I change them?

My planet is roughly the size of Earth, with one large continent measuring 9,500 km (5,700 mi) across and no other large landmasses. There is one very wide and high mountain range (like the Andes) in ...
www's user avatar
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2 votes
1 answer
47 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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3 votes
0 answers
117 views

How differently would Earth's wind and ocean currents look if it were a shellworld the size of Neptune?

Earth is a quaint little green-and-blue marble 7,917.5 miles wide and 196,941,385 square miles in area. It's just small enough to create a busy, dynamic network of wind and ocean currents. These two ...
JohnWDailey's user avatar
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6 votes
2 answers
403 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
248 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
3 votes
1 answer
70 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
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3 votes
2 answers
134 views

what would the wind patterns on a world that has a constant "midnight sun" [duplicate]

I created a world that's axial tilt is on a constant 45 degree angle in the northern hemisphere it would look something like this. The problem is I can't figure out how the wind currents would work. ...
coolcom300's user avatar
4 votes
1 answer
239 views

No idea where a current should come from

I was designing a continent and I placed it pretty far south of the equator and far from basically everything (just below 20 degrees south) and have now run into an issue with the ocean currents on ...
Blurbles's user avatar
4 votes
5 answers
941 views

When and how do winds and currents form?

I'm trying to design a map for my new planet, but I'm realising I know very little of how planets come to be the way they are, especially when it comes to currents and climates. To make things simple ...
Mr_Bober's user avatar
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0 votes
1 answer
62 views

Would it be possible to have a warm current going up the coast of Labrador and entering into Hudson Bay?

I need a warm current to pass along the coast of Labrador (I have another one already entering the Saint Lawrence) and enter the Hudson Bay. That way I would make it somehow like Western Europe with a ...
Inquirer's user avatar
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2 answers
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Would it be possible to have a large island in the middle of the Atlantic and have it encircled by warm currents?

Let's say we would have a large island (size of Greenland) in the middle of Atlantic (yeah, Atlantis). Would it be possible to not have it facing the Gulf stream (warm) from its west side and the ...
Inquirer's user avatar
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4 votes
1 answer
360 views

Weather in a tidally locked planet's crepuscular zone

I'm currently designing a world for a project I am working on. It's supposed to be a grounded and comparatively realistic setting. The setting is a tidally locked planet in its star's habitable zone, ...
Yxylion's user avatar
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3 votes
1 answer
164 views

Can you build convection currents out of hollow air?

Recently, I found this image by the Redditor "Keeperofbeesandtruth": He made it free to use, as he doesn't intend on being serious about his own project. So here's my plan: Keep the ...
JohnWDailey's user avatar
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3 votes
2 answers
179 views

What would the rest of the oceans look like in this scenario?

The scenario being this: The red band extending 15 degrees from the equator is a dead zone, too hot for complex, multicellular life to thrive. How hot are we talking? The equator in this scenario ...
JohnWDailey's user avatar
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0 votes
2 answers
168 views

How would the ocean currents of a tidally locked super-Earth work? [closed]

Suppose for a moment that a large planet orbits an M0 red dwarf star (51% as wide, 60% as massive and only 7% as bright as our sun). It itself is 230% as wide and 700% as massive as Earth. There is ...
JohnWDailey's user avatar
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10 votes
1 answer
442 views

Realistic Ocean Currents on a custom world

Hey I've been trying to map out some ocean currents for a planet I'm creating, called Kalmoren. I've been following an artifexian tutorial however he seems to split gyres based on the circulation ...
Tamrak's user avatar
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8 votes
5 answers
751 views

What negative effects would stem from a world having many inland seas rather than large connected oceans?

My fantasy world Treyidal is a planet inhabited by two races, humans and merfolk. They live on a very seismically active world, with such things as micro-magic based earth quakes. For the moment we'll ...
WasatchWind's user avatar
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4 votes
1 answer
262 views

Migration of seeds between continents

In my story, life is disappearing from every continent of the world, from small animals to great sequoia trees, except for bacteria, of course, and marine life. except for one continent: Antarctica. ...
Bowman's user avatar
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3 votes
1 answer
429 views

Would there be ocean currents in oceans of sulfuric acid?

Would there be ocean currents in sulfuric acid oceans? For my world the oceans are made of sulfuric acid because of the high amount of sulfur in the atmosphere, and I was wondering whether there would ...
Katze's user avatar
  • 569
4 votes
3 answers
316 views

Can someone please doublecheck my ocean currents map?

Just looking for another knowledgeable eye to see if they see any glaring errors with my ocean currents. The world is the same size as Earth, rotates the same direction, same prevailing winds, only ...
inspiris's user avatar
1 vote
1 answer
250 views

What would the Climate effects of a Circum-Equatorial current be on a world with 0 degrees of axial tilt

The basics of my worlds oceanography is that there is one large ocean that covers one side of the world completely, and in-between the northern and southern continents on the other side of the world, ...
skout's user avatar
  • 2,058
4 votes
2 answers
259 views

I need help with my ocean currents

I haven’t really ever gotten this far in worldbuilding, and I’m kinda stuck on ocean currents. My world has lots of tiny little islands that are on 2 slightly submerged continents (around 3 metres ...
Katze's user avatar
  • 569
5 votes
1 answer
645 views

How can I make my climate zones more realistic?

I've been trying to come up with some climate zones for my earth-like planet for a while now- Ocean and wind currents are basically like for like with earth- and- this is about the third iteration I'...
Ahrucius's user avatar
7 votes
7 answers
1k views

What ocean geography causes bodies to "disappear"?

Long story short: a cultural tradition of this (late medieval/early renaissance-ish) civilization is to put their deceased in a casket/boat/raft, and float them out into the ocean. Their belief is ...
cassadia.68's user avatar
4 votes
1 answer
210 views

Do all ocean currents create gyres?

I am getting close to being done my ocean currents, so I would like some constructive criticism/critiques to see where they can be improved before I move onto the next step of my worldbuilding project....
travitolee's user avatar
4 votes
1 answer
315 views

Are these ocean currents realistic for a planet that rotates 16 times slower than Earth?

Ocean Current Map: The straight red lines are 60* North and South, and the straight blue lines are 30* North and South. The curved blue lines with an arrow represent cold currents, while the curved ...
Mandelbrot's user avatar
  • 1,573
3 votes
1 answer
458 views

What would the currents of an ocean world with no continents look like?

This is an earthlike planet in every respect (same 24 hour day, same orbital year, etc) except it is an ocean world. There are no continents, and the global ocean is significantly deeper (10 miles, or ...
Silvirs's user avatar
  • 375
2 votes
2 answers
286 views

What Would the Arctic Ice Caps Look Like in This Current Map?

This is a map of my alternate Earth with a focus on ocean currents, courtesy of Mikael Asikainen: As you can see here, Greenland looks smooshed, but that is because it is arranged to the extent that ...
JohnWDailey's user avatar
  • 14.5k
2 votes
2 answers
263 views

The 42-Hour Day: Episode I: Ocean Currents

Presented here is a map of an alternate Earth from 542 million years ago. It is 5% narrower in diameter and 20% lighter in mass than our Earth. A single day lasts 42 hours, a cycle that it must ...
JohnWDailey's user avatar
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4 votes
2 answers
657 views

Are my ocean currents passable?

(Excuse the mess, as this is just a rough draft I drew up in CC3+. If it needs to be tidied up, just let me know. Bright red and dark blue arrows indicate wind direction.) I was marking the ocean ...
Nathaniel Leinart's user avatar
15 votes
5 answers
1k views

An Aztec ship sails east - where does it land?

Given: An ahistorically powerful and advanced Aztec civilisation, anno late 1400s. A set of circumstances much like the ones that led Columbus west: one mad Aztec convinced the world was rather small ...
KeizerHarm's user avatar
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5 votes
4 answers
1k views

Could a large enough fleet generate tsunamis while moving from a place to another?

Imagine similar earth conditions of oceans and currents, and a renaissance type kind of ships of various sizes (ranging from sloops to ships-of-the-line), could a fleet consisting in 1500 (aprox.) ...
DigiAB's user avatar
  • 405
3 votes
2 answers
773 views

Are the ocean currents and climate zones of my world plausible?

So, I'm making my first stab at worldbuilding, and I got this idea for a largely water world with only a single continental landmass, a little smaller than Africa in terms of land area, roughly ...
devendoo's user avatar
  • 113
6 votes
2 answers
194 views

In what ways a higher level of oxygen (23 to 25%) and higher pressure (1,7 time the earth air density) would affect winds and ocean currents?

From some research, I have learned that atmospheric circulation - winds currents and ocean currents - depend on pressure and the Coriolis effect. But if the oxygen level is increased and the pressure ...
Emie's user avatar
  • 511
6 votes
1 answer
390 views

Ocean currents near the poles

I'm trying to create a earth-like world, with different land masses. I want to make a realistic climate scheme and determining ocean currents is a part of this. I've done some research on ocean ...
K VdB's user avatar
  • 63
9 votes
2 answers
236 views

Could Xenarthrans Be Ferried Outside South America?

Right from the beginning, the xenarthrans--armadillos, sloths and anteaters--have been at a disadvantage. For the longest time, their home was an island continent, which made them extremely ...
JohnWDailey's user avatar
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7 votes
1 answer
440 views

How would ocean currents work with a gulf that's closed to the equator on both sides?

I'm running a D&D campaign and am using a modified map of Venus for it that shows what Venus would look like with similar amounts of water to Earth. The problem I'm running into is mapping the ...
Jokehr's user avatar
  • 73
8 votes
1 answer
205 views

Can you critique my sea temp map and answer a couple of specific questions?

I'm working on yet another iteration of a world map project. I'd like to ask for some opinions on the sea temperature map I've done: I also have a few specific questions about some areas on the map. ...
EojjN's user avatar
  • 81
5 votes
1 answer
423 views

Ocean currents on a world with 1 continent and many archipelagos

I am building a world that has a single giant continent and nine island chains around the equator. I watched Artifexian's video on ocean currents and made a basic map, but it has no information ...
D. Daniels's user avatar
6 votes
3 answers
951 views

What would happen to the climate if Earth's sea-levels rose 2000m?

This is the first of possibly several posts about the following scenario, in which Earth's sea-level rises 2 km overnight, generating a world map looking like this: Question: What would be the ...
Montefeltro's user avatar
  • 1,545
5 votes
2 answers
316 views

All the Radioactive Metals Inside Earth's Core--How Would They Affect Convection?

In relation to a recent question of mine, this alternate Earth still has its core consisting of 84% iron, but the other 16% contains the greatest concentrations of all known species of heavy metals (...
JohnWDailey's user avatar
  • 14.5k
3 votes
2 answers
362 views

How can I explain the geography and climate of my planet?

I've recently decided to revive an old project of mine involving an alien planet. Unfortunately, however, I was not as good a worldbuilder then as I am now, and that's having some consequences. Back ...
SealBoi's user avatar
  • 14.9k
63 votes
9 answers
15k views

A 40km diameter alien saucer is floating 2km above the ocean for a long time. What are the effects on the sea ecosytem below?

Twenty years ago, a 40km diameter alien saucer came to Earth, and stopped 2km above the Atlantic ocean, somewhere near the midpoint between Casablanca, Morroco and Natal, Brazil but over international ...
Mindwin Remember Monica's user avatar
5 votes
2 answers
339 views

How would the weather be affected by a constant miles-wide maelstrom?

There is a giant equatorial maelstrom surrounded by three landmasses sucking warm water down to the bottom of the ocean. Somehow, magically or some weird physical process I haven't fixed on yet, this ...
Psychonautilus's user avatar