Initial TDS Installation Catalog https://coastwatch.glerl.noaa.gov/thredds/catalog/chl_s_png/catalog.html

Dataset Size Last Modified
     Folder  Lake Superior (png)   --
         Folder  2017/   --
         Folder  2016/   --
         Folder  2015/   --
         Folder  2014/   --
         Folder  2013/   --

CoastWatch Great Lakes Data Server at CoastWatch Great Lakes Node see Info
THREDDS Data Server [Version 4.6.6 - 2016-06-13T15:13:41-0600] Documentation