National Centers for Environmental Information / National Operational Model Archive and Distribution System Catalog https://www.ncei.noaa.gov/thredds/catalog/model/narr.html

Dataset Size Last Modified
     Folder  North American Regional Reanalysis   --
         Folder  NARR-A   --
             Folder  NARR-A - 3 Hour - File Units/   --
             Folder  NARR-A Monthly Means from Climate Diagnostics Center - File Units/   --
             Folder  NARR-A Monthly Means by 3h Period from Climate Diagnostics Center - File Units/   --
         Folder  NARR-B   --
             Folder  NARR-B - 3 Hour - File Units/   --
             Folder  NARR-B Monthly Means from Climate Diagnostics Center - File Units/   --
             Folder  NARR-B Monthly Means by 3h Period from Climate Diagnostics Center - File Units/   --

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