NOAA/ESRL/PSD Catalog http://esrl.noaa.gov/psd/thredds/catalog/Datasets/nodc.woa98/masks/catalog.html

Dataset Size Last Modified
     Folder  masks   --
         basin.nc 4.282 Mbytes 2010-11-05T21:19:25Z
         landseadepth.nc 133.4 Kbytes 2010-11-05T21:19:25Z

NOAA/ESRL/PSD at NOAA ESRL PSD see Info
THREDDS Data Server [Version 4.3.15 - 20121218.1126] Documentation