Yes, you need a transition zone. If the gradient is strong the bands will be thinner.Originally Posted by Coggleton
It depends on the direction of the winds. If it's blowing directly inland, it could spread for several hundred of kilometres.- How thick should the temperature influence zones due to ocean currents be?
If it blows in the opposite direction, then the effect is limited to coastal areas.
My Deviantart: https://vincent--l.deviantart.com/
Hey, is your temperature chart based on a mathematical model, or is it purely empirical data? I would be interested in automating the process of temperature determination to make it less tedious and hopefully more precise than what we're doing manually so far. If you know of any interesting research papers or models on that subject, that would be of great help! Alternatively, if anybody else has already tried that, I'd be happy to hear about it.
I have thrown together a temperature generator, but instead of an expert systems/analytical approach I just built a neural net classifier for temperature bands that takes the elevation map as input and outputs January and July temperature band maps. I haven't put it out publicly on Github or anything yet because 1) it's pretty slow still (takes ~45 minutes to run on a 4000x2000 image) and 2) I wasn't sure under what conditions I'm allowed to distribute the training dataset I trained the classifier on (that's become more clear recently, but I'm somewhat novice at all the license details and so I've been reluctant to proceed).
There's also a software program called Clima-Sim, from Weather Graphics, which is aimed for simulating Earth but can apparently also be finagled to work for other arbitrary geographies and lets you edit a variety of relevant variables including axial tilt and so on. From what little I know about it it actually crunches a bunch of the equations to compute climatological predictions given those input items. That said, it's not free and I don't know all that much about it in detail, and it might be tricky to use in the sense of requiring a lot of climatological knowledge to get the best results. You can search it online if you're curious about it.
Last edited by AzureWings; 06-15-2020 at 04:10 AM.
That's an interesting approach! How did you manage to feed your neural network enough standardized temperature maps to make it effective?
Yeah, I've heard of it and gave the demo version a try, but not being able to save your model is too much of a drawback for me. Essentially, this is a model like this -although simplified- I'd like to build. I have no deep climatological knowledge, but I've got some understanding of fluid mechanics and thermodynamics so I guess it's a start.
Wow, how come I did not find that blog earlier? The research paper linked in the first article is also particularly interesting, since it pretty much follows the approach I had in mind and goes much further in depth than I could on my own.
I have done some work on a mathematical model for temperature here. I took a lot of inspiration and knowledge from this thread but I'm not using GIMP or PS to do the actual work, so there would have to be some tweaks. But I've found this gives a reasonable baseline for temperature and a smoother, more precise transition between zones. Exact numbers can also help if for whatever reason you're interested in the temperatures at other times of the year and yearly precipitation/temperature values. I hope this helps somewhat!
It's empirical. But the relationship between precipitations and temperatures that gives the aridity uses maths.
Azurewings might have a mathematical model but I don't know of any unless one where the planet is made with a uniform surface, with an uniform albedo.
My Deviantart: https://vincent--l.deviantart.com/
Planning to run through this process soon--how do you make a world topographic map? Specifically, how do you figure out which regions are supposed to be at which heights? I currently have a map of my world's plate tectonics, but will I need anything else?
Goodevening everyone!
I followed this tutorial for my brand new world, i found it really entertaining, especially guessing temperature and precipitation zones!
Now i'm struggling with the script for GIMP; i managed to run it after some problem, but now i'm stuck to an error: unorderable types: str() > float ()
Anyone can unravel it for me?
I'm rather ignorant in software in general..
Thanks!
Michele
The GIMP script is made for GIMP 2.8, it probably won't work properly with a newer version of GIMP. You could either download the old version of GIMP to run the script, or use AzureWings' script (which doesn't require any program to be run, though it does involve installing Python).
Well, i said that badly, i actually used the AzureWing's one with Python
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