Merra 2 data download parallelization
Summary
Download of merra2 data is quite long and time consuming. It could probably be sped up by parallelizing web queries. This would make sense for the three groups of merra2 data 'flx', 'rad' and 'slv', as this 3-fold parallelization would be available on most modern-day laptops.
Possible fixes
Parallelization of the "for" loop in :
(...)/e4clim/api/merra2.py:(102)