NDBC THREDDS Server Catalog https://dods.ndbc.noaa.gov/thredds/catalog/data/ocean/41009/catalog.html

Dataset Size Last Modified
     Folder  41009   --
         41009o2008.nc 507.5 Kbytes 2008-12-31T23:30:00Z
         41009o2009.nc 717.9 Kbytes 2009-12-12T17:00:00Z
         41009o2010.nc 675.6 Kbytes 2010-11-30T23:30:00Z
         41009o2011.nc 774.0 Kbytes 2011-12-31T23:30:00Z
         41009o2012.nc 385.2 Kbytes 2012-06-30T01:00:00Z

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