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Q&A

Posts tagged rivers

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Q&A Could terrain like this form on Earth? If so, how?

I am creating an RPG and came across an image that I wanted to base my landscape on. It is shown above. Is it possible for terrain like that to form on Earth (ignore the wildlife)? If it is, how ...

4 answers  ·  posted 4y ago by galactic_analyzer‭  ·  last activity 4y ago by galactic_analyzer‭

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Q&A Is a confluence of more than two rivers plausible?

Two rivers converging into one is obviously extremely common, most often when one is clearly dominant over the other (whereby the lesser one is the 'tributary' of the greater) but also sometimes wh...

3 answers  ·  posted 5y ago by Stephen‭  ·  last activity 5y ago by Stephen‭

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Q&A How significantly would the course of rivers change over 10,000 years?

This one is rather straightforward. A character falls into a magically-induced coma for about 10,000 years and then wakes up to find the world around him different in quite a few ways. There's not ...

4 answers  ·  posted 5y ago by greenmaster‭  ·  last activity 5y ago by greenmaster‭

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Q&A What are the requirements for a river delta to form?

I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.

2 answers  ·  posted 5y ago by user64727‭  ·  last activity 5y ago by user64727‭

Question geography rivers
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Q&A Rivers without rain

On Earth, rivers are possible because rain and snow deposit water in high places. That water then forms rivers when flowing to lower places. Would it be possible to have the phenomena of rivers fl...

12 answers  ·  posted 5y ago by Renan‭  ·  last activity 5y ago by Renan‭

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Q&A Salty or fresh or brackish waters?

So this is a small map of all the continents on the small planet of Parsas Decem. As far as most of the rivers go, I've got it figured out. What I'm wondering is, can salt water flowing in from t...

5 answers  ·  posted 5y ago by Bett Struble‭  ·  last activity 5y ago by Bett Struble‭

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Q&A How would a half-steppeland, half-desert kingdom with only a single river function?

On one of the continents in one of my fantasy worlds, I have a kingdom. The kingdom is comprised of two different geographical regions, a steppeland area in the kingdom's north and a desert region ...

6 answers  ·  posted 7y ago by LordofFantasy15‭  ·  last activity 5y ago by LordofFantasy15‭

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Q&A How common is it for a river to enter a valley from a flatter plain?

before I get into my question I wanted to thank everyone for their input in my first thread about the general principles of river drawing. I have taken your comments under consideration and began r...

4 answers  ·  posted 5y ago by Andrew‭  ·  last activity 5y ago by Andrew‭

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Q&A I'm going to have to redraw most of my rivers - what do I need to know to make them true to life?

I'm new here but I've been a worldbuilder for the last decade or so. I'm pretty late to the 'mapping out your country' party and I've only been at it for about 8 months, but I'm starting to see som...

4 answers  ·  posted 5y ago by Andrew‭  ·  last activity 5y ago by Andrew‭

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Q&A Is it possible for a river to flow in a spiral pattern?

The question This question has a few parts: 1. Is it possible for a river to naturally form in the shape of a spiral? 2. If not, would an artificially-formed river, in the shape of a spiral, reali...

10 answers  ·  posted 5y ago by JubaSuperman‭  ·  last activity 5y ago by JubaSuperman‭

Question geography rivers
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Q&A Drawing rivers on a continental scale map

I created the above map using Photoshop and used Wilbur to erode the terrain a bit and calculate possible river flows. Still needs work but I need to create a river mask before I can go on. My me...

3 answers  ·  posted 6y ago by Akirus‭  ·  last activity 6y ago by Akirus‭

Question geography rivers
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Q&A Could a river on Earth be made of a liquid other than water?

So far as I can research, all rivers on Earth are flowing water. There are other substances that are liquid at room temperature. Are there any natural processes that could create a river of somethi...

3 answers  ·  posted 6y ago by SRM‭  ·  last activity 6y ago by SRM‭

Question rivers
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Q&A How could a mammal develop that has long legs but lives in a semi aquatic area?

This probably sounds fairly ridiculous- I know, but in short I've been developing a sort of future earth. It's not extraordinarily accurate, but I've been trying to at least keep the obvious in che...

1 answer  ·  posted 6y ago by CAGIG‭  ·  last activity 6y ago by CAGIG‭

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Q&A A river around the earth

Suppose we would create a river, canal or a tube around the earth and water would flow in it. Where would it flow? And if we put some turbines in this flow, could it produce free energy?

5 answers  ·  posted 7y ago by Eternal Energy‭  ·  last activity 6y ago by Eternal Energy‭

Question energy rivers
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Q&A How to stop a massive canal system from silting up?

Based on the desert world from this question I need to transport around 500 cubic kilometres of water / year across a desert. Using this calculator. this can be achieved if the main feeder canal is...

12 answers  ·  posted 6y ago by Slarty‭  ·  last activity 6y ago by Slarty‭

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Q&A How fast a current can ancient water way travel overcome?

This question has similarities to this one but concerns canal travel in more ancient times and is aimed at finding an approximate speed of flow not variables. Background Assume an Earth-like world...

4 answers  ·  posted 6y ago by Slarty‭  ·  last activity 6y ago by Slarty‭

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Q&A Roughly how much water would my desert civilization need every year?

In my desert canal world all water is supplied from the poles to the temperate zones via a canal network. I want to work out the amount of water that that is needed, so that I can work out the dime...

4 answers  ·  posted 6y ago by Slarty‭  ·  last activity 6y ago by Slarty‭

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Q&A Would a salt flat be near a river?

Would a salt flat be near a river? I have a world with a Nile River-like region and within a few miles, perhaps 10-20, I have a massive salt flat. The arable land of the river brushes up against e...

4 answers  ·  posted 8y ago by Dynas‭  ·  last activity 6y ago by Dynas‭

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Q&A Almost tidally locked to moon and the tides it would create

I have a world with a moon, much like Earth and the Moon, except that the planet is almost tidally locked to the moon. The moon therefore appears to move only very slowly through the sky, and take...

4 answers  ·  posted 7y ago by Jay Lemmon‭  ·  last activity 7y ago by Jay Lemmon‭

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Q&A How can a river delta not be at the mouth? (Mississippi example)

I'm creating a bronze age setting and one of the civilizations gets their powers from a river whose irrigation produces a vast food supply. So, I decided to figure out where the most powerful city ...

2 answers  ·  posted 8y ago by pimmen‭  ·  last activity 7y ago by pimmen‭

Question geography rivers
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Q&A Natural underground water distribution in a desertic continent

I'm worldbuilding a continent that's mostly desertic (still trying to decide if sand or rocky desert, but definitely a hot desert). All the rain would fall on the edges of it, through a chain of mo...

4 answers  ·  posted 8y ago by Pedro Gabriel‭  ·  last activity 7y ago by Pedro Gabriel‭

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Q&A can the same river be deep and fordable

Is it reasonable for a river to be shallow enough to ford in one location, while nearby (say within 5 miles or less), be at least 12 feet (3.6m) deep? The same river can have shallow sections and d...

2 answers  ·  posted 7y ago by Michael Lucas‭  ·  last activity 7y ago by Michael Lucas‭

Question geography rivers
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Q&A Possible: Canal town (e.g. Venice) in a River Valley?

I'm imagining a town in a river valley. The river runs straight through the town and is diverted or spread out into canals that form a grid in the central, low-lying part of the town. Technology is...

2 answers  ·  posted 7y ago by brt‭  ·  last activity 7y ago by brt‭

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Q&A What are some of the reasons for a river to split?

I know that rivers do not usually split but they can. e.g. It can occur due the glacial shift. Are there any other ways that this could happen? And if it did would one river become dominant a ...

2 answers  ·  posted 8y ago by TheWitchDoctor ‭  ·  last activity 8y ago by TheWitchDoctor ‭

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Q&A How could state borders equal major watersheds?

How can I explain, in a believable way of course, that country borders closely resemble drainage divides? They don't always match mountain ridges, which are natural borders "“ as are the rivers th...

5 answers  ·  posted 8y ago by Crissov‭  ·  last activity 8y ago by Crissov‭

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Q&A How long can a river physically be on a planet?

How long can a river be? Are there any physical limits on its length, coming from the necessary altitude drop, the triple point of water, or other factors? You can alter whatever parameters you f...

3 answers  ·  posted 8y ago by rzp‭  ·  last activity 8y ago by rzp‭