grib2_ecmwf doc

pycif/plugins/datastreams/fields/grib2_ecmwf/__init__.py

+"""
+Read grib files from ECMWF
+
+Options : 
+1) Surface fields only, 3d field by default
+2) Decumulation : in this case 2 dates are saved in the fetch list and the decumulation is next_date - date
+
+"""
+
+
 from .fetch import fetch
 from .get_domain import get_domain
 from .read import read