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Ask for your help: Crop my personal area of interest, but no results. #29
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It's not very clear in your description and code as to how you produced the forecast, I assumed that you have largely followed the processes laid out in the jupyter. One of the reasons that you could be getting an all |
@Aquila96 Thank you very much for your answer. Your demo data is complete global data, I added my code after your "Load weather data" section, my purpose is to only input my interest area and predict the result of this area, but the final result is nan.If it is wrong according to what you said, how should I correct it? Thank you very much for your reply.
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I'm not familiar with The model is designed to accept strictly global initial conditions with pre-defined grid sizes, inputs not following the prescribed data formulations would generate |
I don't quite follow what you're trying to do, but graphcast only works on the whole world, not on patches of any type. If you try to make predictions where some of the inputs are nonsensical (eg all zeros, or nans), you will get nonsense outputs (eg all nans) which may well be rendered as all white. |
I think Timo's reply above pretty much summarises it, closing. |
Dear graphcast experts, I uploaded my own research area: shp file into your demo code and then cropped the example_batch data. The final output includes only Targets Predictions and no results for predictions and Diff. I looked at the specific Predictions and the latitude and longitude ranges are correct, the geographical ranges are correct, but the variables will all have values of nan. I beg your answer. Thank you very much.
Here are my cut code:
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