NDBC THREDDS Server Catalog https://dods.ndbc.noaa.gov/thredds/catalog/data/ocean/ducn7/catalog.html

Dataset Size Last Modified
     Folder  ducn7   --
         ducn7o2005.nc 162.3 Kbytes 2005-05-31T23:00:00Z
         ducn7o2006.nc 131.5 Kbytes 2006-12-31T23:00:00Z
         ducn7o2007.nc 769.5 Kbytes 2007-12-31T23:30:00Z
         ducn7o2008.nc 451.4 Kbytes 2008-07-31T07:00:00Z

National Data Buoy Center THREDDS Server at National Data Buoy Center see Info
THREDDS Data Server [Version 4.6.14 - 2019-07-23T11:04:31-0600] Documentation