NOAA/PSL Catalog https://psl.noaa.gov/thredds/catalog/Datasets/COBE2/catalog.html

Dataset Size Last Modified
     Folder  COBE2   --
         icec.mon.ltm.1981-2010.nc 4.670 Mbytes 2020-04-13T14:28:32Z
         icec.mon.mean.nc 61.64 Mbytes 2020-04-13T14:28:32Z
         sst.mon.ltm.1981-2010.nc 4.670 Mbytes 2020-04-13T14:28:32Z
         sst.mon.mean.nc 529.0 Mbytes 2020-04-13T14:28:33Z

NOAA/PSL at NOAA PSL see Info
THREDDS Data Server [Version 4.6.15-SNAPSHOT - 2020-01-28T04:01:10+0000] Documentation