Question Is FP16 good enough for weather forcast

[Greyguy1948]

FP16 is of interest for machine learning but is it good enought for weather forcast?
http://spec.org/cpu2006/publications/CPU2006benchmarks.pdf
They use FP32 in 481.wrf but do they really need it?
More about FP16:
FP16 on Wiki

My idea about weather forcast is that all instrument data are not very exact.
Temperature +/-5% , wind speed +/-5%. humidity +/-5%. Barometer should be better like +/-1%

 

[mv2devnull]

Meteorological Institutes have developed their forecast algorithms/models for decades. Surely they have published about their findings?

 

[Greyguy1948]

For a very long time FP32 and FP64 were the only alternatives. Most compilers even today are not ready for FP16. If we look at GPUs from AMD and Nvidia only few are faster on FP16 than FP32. But machine learning is on the way....