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April 24, 2025 20:25
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Reprojecting UKCP 2.2km dataset from rotated pole to regular lat/lon grid using Rasterio 1.4 with src_geoloc_array
Cool! I just tried your code and it works well for my case ;)
As far as I understand, the code reprojects data to your preferred projection by resampling (the default setting is nearest). I also tested the UTM projection, it seems to work well.
Yes, rasterio.warp.calculate_default_transform is for calculating a suitable target transform and shape - could be for any projection you want or you could get this from somewhere else, e.g. a template file - and rasterio.warp.reproject does the actual reprojection, where you can make the usual choices of interpolation methods, etc.
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Yes, sounds like it! Pls try and feel free to share here whether it worked out.
You can also use xESMF if that for some unlikely reason better fits your tool stack: https://gist.github.com/j08lue/4952ff9f4a5eb148d198903076664d32