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Two new AI-based weather-forecasting systems challenging the status quo

phys.org

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Re: Two new AI-based weather-forecasting systems challenging the status quo

#2
> In the first effort, the team behind Pangu-Weather, trained their system on 39 years of weather data and then asked it to make predictions based on current weather patterns. They found that it was as accurate at doing so as existing systems, and did its work in just a fraction of the time.

That's awesome -- years of analysis paying off in a very cool and interesting way. It says that this particular model doesn't predict precipitation -- just atmospheric conditions -- but there's a lot of really interesting potential, here.

Re: Two new AI-based weather-forecasting systems challenging the status quo

#3

> In the first effort, the team behind Pangu-Weather, trained their system on 39 years of weather data and then asked it to make predictions based on current weather patterns. They found that it was as accurate at doing so as existing systems, and did its work in just a fraction of the time. That's awesome -- years of analysis paying off in a very cool and interesting way. It says that this particular model doesn't p…

Older books talked about two methods of predicting the weather: (1) based on atmospheric modelling, and (2) based on historical trends. The American Boy's Handy Book

https://en.wikipedia.org/wiki/The_American_Boy%27s_Handy_Boo...

had a chapter about using simple heuristics that, in principle, are similar to what a machine learning algorithm can learn.

Re: Two new AI-based weather-forecasting systems challenging the status quo

#4
I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available.

Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

Re: Two new AI-based weather-forecasting systems challenging the status quo

#5
post #4

I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available. Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

> I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI.

Why would they use AI where weather models exist, and work? What exactly would AI bring into space?

Re: Two new AI-based weather-forecasting systems challenging the status quo

#7
post #4

I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available. Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

They spent billions and decades on software and models that work good enough; I think AI would work too, given enough data to learn, but would it be better or just different?

I mean keeping in mind the number of variables involved and, more recently, rapid climate change, el niño and forest fires that are much more difficult for an AI to keep in mind (I think).

It's a competitor to existing models and supercomputers, but it has to prove its reliability first.

Re: Two new AI-based weather-forecasting systems challenging the status quo

#8
post #5
post #4

I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available. Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

> I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. Why would they use AI where weather models exist, and work? What exactly would AI bring into space?

[deleted]

Re: Two new AI-based weather-forecasting systems challenging the status quo

#9
post #5
post #4

I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available. Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

> I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. Why would they use AI where weather models exist, and work? What exactly would AI bring into space?

I mean as we're seeing right here, they are just as good in their testing stage while not taking several hours to run. They're more efficient to run and calculate since they don't need to go through a lengthy process to determine the weather, just take advantage of the cyclic nature of nature to do the work for us.

Re: Two new AI-based weather-forecasting systems challenging the status quo

#10
post #5
post #4

I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. One would think this would be one of the first areas that would adopt AI given the data available. Also that these new AI systems are performing at the same level of the old non-AI approaches I feel is a real testament to the developers of those systems. This is not something we see in many other cases.

> I’m actually surprised to hear that the standard approaches used for weather forecasts do not use AI. Why would they use AI where weather models exist, and work? What exactly would AI bring into space?

A lot of people are using neural network models to model fields in variable resolution, solve PDEs and such. I know a bit about astrophysical modeling and you sure can't afford to model every part of a star in the same amount of detail. You can pick some special coordinate system or make the grid vary in size or you can use a neural network to model some f(x,y,z) and the network can allocate its own resources to put more detail where you need it.

https://arxiv.org/abs/2102.11802

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