add data loaders

[atrisovic]

Data loaders

(1) (reformatted) NASA_BCSD
Tasmax, Tasmin, Tas: no changes when loading
(2) GMFD
TMIN, TMAX: rename_coords_to_lon_and_lat + convert_lons_split
TAS: convert_lons_split

[delgadom]

Hi @atrisovic - this is a great start. I'm really sorry - my claim that I could hammer something out in a couple hours proved to be too much for my schedule and I spent about an hour on this and then got pulled into other things. I have a few proposed changes that we could discuss though... I'll document them and create a PR.

[delgadom]

this is great! but can we force the user to provide the exact loader name? ERAI and ERA5 have different formats, and GMFD-v1 and GMFD-v3 do too :)

[atrisovic]

my first implementation was for the users to pass the loader function, but that would mean that a user would need to import both the loader function and load_climate_data (from climate_toolbox.io.io import load_climate_data, load_bcsd) to be able to pass it on. but yeah, I can actually revert it back to that version, it's good if a user wants to write it's own loader func. what do you think?

[delgadom]

oh sorry I didn't say that quite right. I don't mean load_era, I mean something like ERA5 rather than ERA. Different versions have different formats.

[atrisovic]

I have a few proposed changes that we could discuss though... I'll document them and create a PR.

@delgadom if it's not a major change you can leave a comment and I'll fix it

[delgadom]

Unfortunately it's a large number of changes scattered across climate_toolbox and climate_transform_specs. I should have warned you that I had started work but didn't complete it. My current proposal is on the standardized_runner_func branch. I'll file a WIP PR so we can discuss.