Timeline for Weather processes on a flat world
Current License: CC BY-SA 4.0
28 events
| when toggle format | what | by | license | comment | |
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| Jan 26, 2022 at 16:43 | comment | added | Harthag | I'm not sure how you came up with those percentages, but you might be interested to know how small your ocean actually is with the given numbers. While the inhabitants of your world would need to travel about 7,700 KM to cross from one side of the continent to the other, they would only have to sail about 1890 KM to get from the coast to the inner surface of the dome. That's roughly the distance from the east coast of Spain to the west coast of Greece, or from the straight of Gibraltar to the 'toe' on the 'boot' of Italy. Half-ish, the width of the Mediterranean. | |
| Jan 23, 2022 at 2:51 | comment | added | Myotis | @Harthag Thank you, and I'll keep that in mind for next time. | |
| Jan 21, 2022 at 22:47 | comment | added | Harthag | While I appreciate the vote of confidence, you might want to know that the community here generally considers it appropriate to allow more time for answers before selecting a best answer. Not sure whether or not that's come up for you before, so thought I'd let you know, in case it hasn't. Thanks again, and great question, and great world building concept you've come up with here. | |
| Jan 21, 2022 at 22:44 | vote | accept | Myotis | ||
| Jan 20, 2022 at 23:46 | comment | added | John | If it is a dome, the center of the dome will always be cold since it is always the same distance from the sun. | |
| Jan 20, 2022 at 23:02 | comment | added | Pelinore | Even with perfect scattering this ^ is going to be the case, distance is still distance & the sun is hotter & will warm the flat worlds surface more where it's closest & the light & heat has less distance to travel the same as here, the exact degree of difference for your world is math I've not the resources to take a stab at. | |
| Jan 20, 2022 at 22:41 | comment | added | Pelinore | Does the sun follow the same orbit every day? & is the flat world circular? presuming this to be the case & that the orbit is circular then it's going to be closer to the disk as it passes the edges on its path & highest in the middle of the disk, also further from the sides on the left & right of its path, the left & right edges (in relation to the suns path) will be the coldest climates on your world, the hottest climates will follow a band along it's path hottest at the edges & not so warm in the centre, convection currents & prevailing winds will be determined by this temp. difference. | |
| Jan 20, 2022 at 22:10 | comment | added | Harthag | @PcMan I wonder if they meant "irridescent" instead of "opalescent". Irridescence is one aspect of opalescence, but need not be "milky" as opal generally is. This would make the dome something like a soap bubble in terms of transparency, while still maintaining a very visually stunning color display across the sky as probably intended by the term "opalescent" in the original question. This would also (mostly) resolve the concern about extreme delays in light fading in and out at the beginning and end of each day. Odd reflection and lensing effects still possible as the sun shines up from below | |
| Jan 20, 2022 at 21:58 | answer | added | PcMan | timeline score: 1 | |
| Jan 20, 2022 at 21:49 | comment | added | PcMan | @Harthag that's why a pearlescent dome is a problem. The sun wont set until it is completely under the disk, all other angles will have a brightly illuminated sky, even if no direct sunlight. Basically, the dome will force a 5.5 hour dusk twilight, and a 5.5 hour dawn twilight, with the light levels that of a heavily overcast day. | |
| Jan 20, 2022 at 21:46 | comment | added | Harthag | @PcMan In terms of the day/night cycle, my interpretation of the question was that it should be about a 24 hours day, with about 12 hours between sunrise and sunset. Though I admit that, without confirmation from the asker, there are other possible interpretations. Also, I don't see how the distance between the sun/diety and the dome makes a difference, as long as the angles are the same (implied by the comment regarding seasons), and the tempurature/luminosity are equivalent to Earth's actual sun (specifically stated in the question) | |
| Jan 20, 2022 at 21:39 | comment | added | PcMan | Last crucial question, how far outside the dome is the sun? It cannot be inside, as that would cause fires at sunset/sunrise. | |
| Jan 20, 2022 at 21:33 | comment | added | PcMan | @Harthag "Earth-like", so anything from 24-hour-p[er-day sun, to 24-hour-per-day night, and all intermediate ratios of light vs. dark? ;) | |
| Jan 20, 2022 at 19:13 | comment | added | Myotis | @PcMan The dome is fully hemispherical. Apologies for not clarifying that. I've edited the original post. | |
| Jan 20, 2022 at 19:10 | history | edited | Myotis | CC BY-SA 4.0 |
Someone wanted clarification about the shape of the dome
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| Jan 20, 2022 at 18:51 | answer | added | Harthag | timeline score: 1 | |
| Jan 20, 2022 at 17:10 | comment | added | Harthag | @PcMan On your first point, that's not at all how I interpreted the description. Instead, it seemed to me that the asker was intending the Rayleigh scattering of the dome to account for a blue sky, with the 'sun' still visible as Earth-like. Your second point is one that definitely would benefit from clarification from the asker. The third point, again, seems to me as if the asker was trying for 'Earth-like" in terms of day/night cycle. | |
| Jan 20, 2022 at 6:32 | comment | added | PcMan | You really have to define 3 more things for this to be answerable: 1) what % of incoming light is scattered by the done, vs what is let through directly. It sounds as if you intend 100% scattering, but then the inhabitants would never see the sun as a point but only as overcast. 2) is your dome a part of an arc, or full hemispheric. Effectively, how high is the middle of the dome over the land? 3) How long is the day/night cycle. in hours and relative distribution. if the dome is a true opalescent hemisphere, you will never have complete darkness except for an instant at midnight! | |
| Jan 20, 2022 at 2:02 | answer | added | Ash | timeline score: 4 | |
| Jan 20, 2022 at 1:39 | comment | added | Ash | @Myotis Ask about them once you have an answer you can work with as to the weather, if you need to, the information presented may allow you to do climate without further input. | |
| Jan 20, 2022 at 1:36 | history | edited | Myotis | CC BY-SA 4.0 |
Refining the question to be more focused
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| Jan 20, 2022 at 1:35 | review | Close votes | |||
| Jan 20, 2022 at 1:41 | |||||
| Jan 20, 2022 at 1:34 | comment | added | Myotis | Alright then. With that in mind, I'll ask about the weather systems only, and edit the post accordingly. I'll suppose figure out the climates later on. | |
| Jan 20, 2022 at 1:23 | comment | added | Myotis | They are intrinsically related, however, and I am inquiring about both of them. | |
| Jan 20, 2022 at 0:57 | history | edited | Myotis | CC BY-SA 4.0 |
typo
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| Jan 20, 2022 at 0:51 | comment | added | Myotis | This is the moment when fantasy tropes are in play. The "sun" in this setting is a deity, not an actual star with mass. The temperature and luminosity are the same from the perspective of someone living on this world. I'll add information to the original post to clarify this. | |
| Jan 20, 2022 at 0:31 | comment | added | Sach | Wouldn't you run into a bigger issue here? If the sun orbits the entity, that means it has to have similar or more mass than the sun - which, in turn, means your world be subjected to gravity that's equivalent to at least that of the surface of the sun, likely more. So, if your sun is equivalent to ours, that's already somewhere around 28 G forces. I dunno what the effect it would have on weather, but it would definitely have quite a bit of effect on biology. | |
| Jan 19, 2022 at 23:47 | history | asked | Myotis | CC BY-SA 4.0 |