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Does anybody know if its possible to initialize the model using GFS initial conditions used for the GFS HRES model? If so, where can I find this file and how ca
by miserableuse 3y ago
Does anybody know if its possible to initialize the model using GFS initial conditions used for the GFS HRES model? If so, where can I find this file and how can I use it? Any help would be greatly appreciated!
- counters 3y agoYou can try, but other models in this class have struggled when initialized using model states pulled from other analysis systems. ECMWF publishes a tool that can help bootstrap simple inference runs with different AI models [1] (they have plugins for several). You could write a tool that re-maps a GDAS analysis to "look like" ERA-5 or IFS analysis, and then try feeding it into GraphCast. But YMMV if the integration is stable or not - models like PanguWx do not work off-the-shelf with this approach. [1]: https://github.com/ecmwf-lab/ai-models https://github.com/ecmwf-lab/ai-models
- miserableuse 3y agoThank you for your response. Are these ML models initialized by gridded initial conditions measurements (such as the GDAS pointed out) or by NWP model forecast results (such as hour-zero forecast from the GFS)? Or are those one and the same?
- counters 3y agoThey're more-or-less the same thing.