NMDC-IS TDS Server Catalog http://opendap.knmi.nl/knmi/thredds/OMI/omi.html

Dataset Size Last Modified
     Folder  omi   --
         Folder  Mean yearly OMI tropospheric nitrogen dioxide   --
             Folder  OMI___OPER_R___TYTRCNO_3/   --
             Folder  aggregations   --
                 OMI___OPER_R___TYTRCNO_3.nc   --

NMDC-IS TDS Server at NMDC see Info
THREDDS Data Server [Version 4.3.20 - 20131125.1409] Documentation