Resample to daily process

[aulemahal]

Stumbled upon this problem while writing up the earthcube notebook.

For a truly remote computation with "arbitrary" data, it would be nice that finch provides some kind of "resampling" process. I am currently thinking a something that would take subdaily inputs and aggregate it to daily using a specific function (min, max, mean, sum). That would allow chain-computations with more datasets!

[huard]

Ok, I think this is worth having a design discussion.

[huard]

Let's get this done.

Proposed interface:
id : resample_daily
Inputs:

• resource: netCDF
• operation: {'mean', 'max', 'min', 'sum'}
• missing: {'any', ?, ...}

Outputs:

• output: netCDF

TODO:

• test missing algorithms over daily data.

[aulemahal]

Are we sure we want to automatically convert units to amount? For example, if we have sub-daily precipitation and want to compute some xclim indicator on it, we must convert the data to a faily frequency, but xclim still expects a flux!

Having it as an option controlled by an argument is interesting though.

[huard]

Maybe not, you're right. Let's keep it simple for now and add features as needed.