date problem

[nmathewa]

1. xarray is not useful in generating the time axis
2. xarray is saving as either datetime64 or cftime object
3. temporarily solved by Ferret
4. either we have to use python netcdf4 or more in depth check with xarray
5. Use of attributes

[nmathewa]

• for problems with xarray cftime noleap

  
  startslice = cftime.DatetimeNoLeap(2012, 1, 1,0,0,0,0,-1,1)
  endslice = cftime.DatetimeNoLeap(2014, 1, 1,0,0,0,0,-1,1)

ds_cut = ds.sel(time=slice(startslice,endslice))