Ryan May

So I'm guessing it doesn't work because Cartopy doesn't wrap `tricontourf` and there is usually some massaging that needs to be done. You *should* still be able to take the...

I think that comes explicitly from [netCDF User's Guide](https://docs.unidata.ucar.edu/nug/current/best_practices.html#bp_Coordinate-Systems) and the CF Conventions(["coordinate varible"](http://cfconventions.org/Data/cf-conventions/cf-conventions-1.11/cf-conventions.html#terminology)) Though reading now, I guess it's saying all coordinate variables must be 1D with the same...

CartoPy relies on PROJ extensively, so all of this is going to largely depend on what's in PROJ.

Yes, the rotation would need to be handled by PROJ.

@mdaeron Currently, all of Cartopy's projections are based on the PROJ library. You are welcome to take on trying to refactor to avoid this, or to make a new pure...

I don't know that any of the projections are set up to even handle that--that's PROJ limitation. Everything I can think of is going to map a longitude of 470...

It's not a caching issue, but a problem in how we parse the catalog, specifically when individual datasets have listed access methods...like is done on the NASA Hyrax server. Essentially...

The [docs on ragged arrays](https://zarr.readthedocs.io/en/stable/tutorial.html#ragged-arrays) specifically mention using `numcodecs.VLenArray`, which of course isn't defined in the spec. Hence back to "why specifications are one honkin' great idea"...

One other thing about XHR: it doesn't work for binary data.

Well, [these docs](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest) make it seem like it should be possible, but pyodide's `open_url()` explicitly says it doesn't support binaries--I assume for a good reason. I ran into this same...