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For questions about specific changes in the characteristics of the weather in a location. You should also consider the tags [weather] and [seasons].

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In This Alternate Europe, Where Does Mediterranean End and Cold North Begin?

So, in this alternate Europe, there are some obvious differences. First off, the Baltic Sea is no longer a sea, but now the Baltic Plain. Also, the Low Countries are absent entirely. There are only ...
4
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1answer
175 views

How to generate powerful cyclonic storms in an ocean basin

I have a region on a planet with identical parameters to Earth but different landmasses that is rather similar to the southern ocean on Earth. There is a single piece of land around the size of the ...
8
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1answer
111 views

What would the climate zones of Pangea be?

I use the koppen-geiger climate maps a lot but I haven't found any for Pangaea. Would the climate zones be the same if the continents were in the Pangaea shape or is it something different? It would ...
5
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3answers
149 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 ...
2
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1answer
73 views

How to calculate rainfall; record highs

There are numerous programs and resources that can be used to ascertain pretty exactly the average temperature and general climate of a region. But is there any way to get a quantitative estimation ...
4
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1answer
161 views

Where should I place mountains and deserts in this generated map?

Thanks for all the comments and I've re-edited the question: All nature settings(radius of planet, etc) are similar to the real world earth except the continent layout. I used Mogensen Planet ...
12
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6answers
544 views

How can a remote planet with little to no sunlight have high wind speeds?

I saw this question here: Can I have wind turbines on my base? and someone else asked about how the planet can have 60-100mph winds without very much sunlight to cause the energy differential, to ...
2
votes
2answers
55 views

Atmospheric Conditions leading to different colorations

What kind of atmosphere would a planet need to alter the color of the sun and moon? I know this is rather broad, but I know that a certain gas in our atmosphere colors the sky blue, and gives the sun ...
5
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1answer
127 views

What was the weather like in the Eocene?

I was reading this question earlier today. It asks about the characteristics of global winds in a modern-day earth with Eocene-like temperatures. I'm here to ask about other kinds of weather in the ...
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4answers
257 views

How would a permanently cold tower affect its environment?

In my world, physics works exactly like on Earth, except that there is a narrow, 400 foot tall magical column sticking vertically out of the ground, which is magically always extremely cold -- I'm ...
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1answer
77 views

In an atmosphere of approximately 15 bars, can you get evaporation identical to Earths at sea level with temperatures below 35 degrees Celsius?

I have a super-earth world. The surface of the world is shallower due to extra gravity, so shorter mountain ranges and less ocean depths. The world orbits a binary star system at a distance of the ...
1
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0answers
78 views

A huge desert full of green sand, seated on a plateau, is steadily drained into the nearby lowlands. What happens to the environment? [closed]

I have a large plateau, and roughly in the center are mile-high cliffs surrounding a valley. Inside the valley is a green sandy desert. The sand is composed of olivine. Unfortunately for the ...
2
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3answers
163 views

What should the size of my moons be?

(Not entirely sure if this is the right place to ask this but hopefully I'm right!) I'm writing a novel and the planet this novel takes place on has two, twin moons of approximately the same size. ...
5
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4answers
308 views

Would a denser atmosphere hold in more moisture even if the temperature was exactly that of Earth's surface temperature? (Atmospheric Density)

(My world's details) I have a super-earth world. The surface of the world is shallower due to extra gravity, so shorter mountain ranges and fewer ocean depths. The world orbits a binary star system at ...
1
vote
3answers
88 views

Weather among the average tropical coastal regions? (I can't be more specific than this since i lack a map, I apologize) [closed]

I have a super-earth world. The surface of the world is shallower due to extra gravity, so shorter mountain ranges and less ocean depths. The world orbits a binary star system at a distance of the ...
6
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2answers
166 views

How feasible is my Exo Planet - Penumbra

My planet - let's call it Penumbra for now - exists at roughly 1.5 AU from it's sun - which was similar to Earth's - but is about a billion years older. It is 15% more massive than Earth, but nearly ...
1
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2answers
131 views

What might be a plausible explanation for the drastic lowering of global temperatures?

Question: What circumstances (theoretical or based on actual past events) could lower the global temperature on Earth or an Earth-like planet to an average of 30℉–40℉ (-1℃–4℃)? ...
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3answers
187 views

Feasibility of a mainly forested planet

I have a small planet with a Radius of 3,900 kilometers and a density of 8.9 g/cc. It has an extremely Earth-like climate and has been extremely volcanically and geologically active in the "recent" ...
4
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2answers
84 views

Skin of Large, Terrestrial Amphibians

I have some large, megafauna level amphibians inhabiting a temperate rainforest with naturally high levels of humidity. Would my large amphibians have any problems maintaining a classic amphibian type ...
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3answers
107 views

5x5 Biome Scale possibility?

My world has a conlang that heavily emphasizes words in 'grades' of 5. For example the words for issues are grouped as: Danger-Threat-Risk-Hazard-Situation. Usually it isn't hard to find a set of ...
8
votes
1answer
89 views

Ensuring Hadley Cells and Climate models on planet size

Having looked for a few days I am pretty sure I do not have an answer on this question: My intended planet will have the same density but double the mass of earth. I know this will increase the ...
1
vote
1answer
122 views

What would the effects of zones of differing gravity be on a large volume of open atmosphere

My question has to do with living inside a spaceship, which is mostly made up of a force field containing a breathable, earthlike atmosphere. There is a constant outward pull of something like 0.3 ...
4
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2answers
102 views

Starting with a map of current landforms, how can I write the geographic history of my planet?

The current worldbuilding project I have is going to be detailed - very detailed. It's about the life of an alien planet called Nemo 4, and I want to chronicle the evolutionary history of that life, ...
3
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2answers
75 views

Weather Impacted By Extreme Magical Effect (Heat)

On an Earth-like/Earth-size planet what would be the meteorological effect of a zone, maybe 300 kilometers across, about 20 degrees latitude, in the middle of a northern hemisphere large continental ...
5
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1answer
161 views

Slowing or Averting Global Warming With the Help of Elemental Powers: Part 1 (Fire)

Other posts from this thread will be posted here as these are updated: Info Part 1, (Fire) focuses on what the fire elementals can do. There are 200 such beings that exist (and have existed for a ...
3
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2answers
120 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 ...
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0answers
79 views

What are the biggest problems with the winds/currents/biomes in my world? [closed]

Here's my map: Red and blue arrows are major ocean currents, red representing warm ones and blue cool ones. Black arrows are prevailing winds. Hopefully everything else is self-explanatory! My planet ...
6
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3answers
182 views

Can a planet have warm or temperate climates within its polar regions?

Note: an edit has been made to the main question at the bottom A couple of years ago, I had a worldbuilding project which I have recently revived. I was relatively new to worldbuilding back then, ...
5
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6answers
197 views

Could there be some kind of way for an underground jungle-like climate to occur

In my world, there would be a tropical region very similar to real life rain forests, though underground there's still jungle. At a point underground, there are huge caverns that are populated by ...
5
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6answers
1k views

What would a post-nuclear-war Earth actually look like? [closed]

Many popular depictions of the aftermath of a nuclear war show the entire Earth as a sort of desert - hot, irradiated, cratered, with deformed animals scrounging around and generally quite bleak. This ...
2
votes
2answers
91 views

Has realistic climate modelling been done for inverted Dyson spheres or similar?

While there are approaches to make a habitable Dyson sphere that are technically reasonable, I am curious about what the climate would be like. For simplicity, consider a scenario where a thick shell ...
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1answer
63 views

Changing Earth? [closed]

How would energy transfer, weather and climate be different if Earth had a different axial tilt? Different diameter? Different period of rotation? Different period of revolution? Would anything change?...
4
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3answers
176 views

Would a lack of landmasses at the equator change climates closer to the poles?

I'm imagining an Earth-like world with a single large continent centered on the north pole, and not reaching entirely to the equator. As ocean currents play a large role in shaping weather, I'm ...
7
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3answers
306 views

How can I get my continent placement and latitude lines right to make my climates work?

This is a (crude) map of my world of Lorne in the current age. At the point of development I'm in, I'm trying to get the climates/biomes of some of the lands I've envisioned to work out as best as ...
5
votes
4answers
167 views

What happens to plants when the temperature increases a lot in a couple of years?

Consider an area of a fantasy world which experiences the following changes: Amount on rainfall, and thunderstorms, increases dramatically. Average temperature increases by 10-20 degrees Celsius over ...
6
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2answers
194 views

The World's a Jungle Again. Would Doldrums Blow the Global Air?

From 56 to 34 million years ago, Earth was so warm that we have found evidence of jungle plants inside the Arctic Circle. Nowadays, jungles are confined in or near the equator, and those latitudes ...
4
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2answers
95 views

How thick would clouds have to be to completely blot out the sun?

Title explains it all. Assuming an earth-like atmosphere and cloud composition, how thick would the clouds have to be to completely blot out the sun, causing the surface to be pitch black? How this ...
1
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1answer
190 views

What would the seasons be on a planet with a 10 degree tilt?

What would the effects be on mountains, deserts, and grasslands? I know about the effects of a planet with no tilt, but I was curious about a 10 degree tilt. I am thinking the seasons would still be ...
5
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2answers
205 views

Uninhabitable Equator

I remember reading somewhere that some intellectuals from the medieval period thought the equator would be uninhabitable because it would be too hot. That made me ponder about a worldbuilding idea - ...
8
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6answers
2k views

Ice Caps around the equator of a planet? [duplicate]

Is it possible for the cold, usually polar region to be around a planet's equator — like a belt rather than on far north and south? If so, what would be the circumstances of an Earth-like planet ...
12
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3answers
329 views

Would the tropic and arctic climate bands switch if the Earth's axial tilt changed to 60 degrees?

At 4:56 in this video essay, Edgar states that at an axial tilt of 60 degrees, the tropic and arctic climate bands will be switched, so that equatorial regions would be cold and polar regions hot. ...
3
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2answers
202 views

I want a layer out of frozen clouds floating around my planet. How could that work?

Beforehand: I must excuse my english. It's not my native language. Neither take this question too seriously. It's a stupid concept and I don't think that I will keep it by. It's just very "cool" to ...
3
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1answer
108 views

Creating a Cold Super-Venus for a story

My story revolves around a group of human astronauts exploring various planets via a new revolutionary type of drive. One of the planets I'm envisioning is a Cold Super-Venus, i.e. larger in size, ...
5
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3answers
290 views

What if the geographic pole were in the Himalayas?

From a climatic point of view, what if Earth went through a radical polar shift that would place the geographical pole right where the Himalayas and Tibetan Plateau are? (No matter if southern or ...
6
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3answers
163 views

Sea of Fire in Polar Regions

Would it be possible to have a cold and remote polar region if the oceans are made of fire? By that, I mean that in the place of water, there exists lava.
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2answers
110 views

What is the chance of the whole atmosphere vanishing? [closed]

So in my science class I have been studying Green House Gases and I have learned that the atmosphere is beginning to have holes, which then expose the sunlight from coming in. I am just wondering if ...
0
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2answers
259 views

What would the world be like today if a nuclear winter started in the 60's?

Obviously, any technological advancements that would have happened between the 60's and now would probably not have occurred, but I was wondering what the other possible consequences could be. ...
5
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3answers
392 views

How would my continent be possible? [closed]

I have a continent with a fairly unusual extreme weather pattern, and I'm trying to think how it can fit into a relatively earth-like world. The World Temperate forests cover much of the Alben ...
0
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1answer
90 views

How would this horrible climate be possibly?

I'm wondering if a pine forest with near-constant rain and thunder could be possible. I was thinking that possibly something like this could be created by high mountains next to this place, lightning-...
6
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1answer
118 views

How can I determine the length of a growing season on a world with slightly different orbital parameters

(I bolded the actual question, below, so if you want to skip the preamble scroll down to the bold lettering) I am working on a world that is very similar to earth in some ways, exactly the same mass ...