THREDDS Data Server Catalog https://dap.ceda.ac.uk/thredds/catalog/badc/ecmwf-era-interim/data/monthly-means/catalog.html

Dataset Size Last Modified
     Folder  monthly-means   --
         Folder  hg/   --
         Folder  ha/   --
         Folder  gg/   --

THREDDS Data Server at CEDA see Info
THREDDS Data Server [Version 4.6.15 - 2020-06-16T13:36:16-0600] Documentation