ORNL DAAC Catalog https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/973/catalog.html

Dataset Size Last Modified
     Folder  ISLSCP II GIMMS Monthly NDVI, 1981-2002   --
         Folder  gimms_ndvi_1deg_1981-2002/   --
         Folder  gimms_ndvi_hdeg_1981-2002/   --
         Folder  gimms_ndvi_qdeg_1981-2002/   --

ORNL DAAC TDS at ORNL DAAC see Info
THREDDS Data Server [Version 4.6.16.1 - 2021-03-11T18:21:07-0500] Documentation