Re:Nvidia Is Simulating a Copy of the Earth
by akie on Sunday March 31, 2024 @02:16AM
(#39881877)
We have weather satellites observing everything from above though. Combined with the ground based sensors we have a pretty decent clue.
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Re:Nvidia Is Simulating a Copy of the Earth
by tempaccount420 on Sunday March 31, 2024 @02:27AM
(#39881926)
Yeah, this seems like the perfect problem for AI to solve. Combine different data and find hidden relations.
Re:Nvidia Is Simulating a Copy of the Earth
by bufferoverflow on Sunday March 31, 2024 @11:41AM
(#39885240)
Wrong. Satellites only look at the surface and maybe clouds when available. We have almost no data from above the surface. Very few weather balloons.
No, over a million meteorological observations are collected each day by commercial airplanes, and these are a principle source of data for weather models. Weather balloons and other sounding instruments (satellites are capable of this) also make significant contributions, of course.
It's been proven for decades, the big problem with weather simulation is that the dynamics are chaotic. They continue to be, even as we collect more data from the surface and above. Our forecasts improve, slowly (by a day per decade or so, historically), but simulation cannot be accurate and precise in the same sense.
A good introduction is "Weather Prediction: What everyone needs to know"