This dataset depends on the following independent variable (i.e, grid):
grid: /P (mb) ordered [ (1000) (925) (850) (700) (600) (500) (400) (300)] :grid
grid: /T (days since 1960-01-01) ordered [ (16 Jan 1960 - 15 Feb 1960) (16 Feb 1960 - 15 Mar 1960) (16 Mar 1960 - 15 Apr 1960) (16 Apr 1960 - 15 May 1960) (16 May 1960 - 15 Jun 1960) (16 Jun 1960 - 15 Jul 1960) (16 Jul 1960 - 15 Aug 1960) (16 Aug 1960 - 15 Sep 1960) (16 Sep 1960 - 15 Oct 1960) (16 Oct 1960 - 15 Nov 1960) (16 Nov 1960 - 15 Dec 1960) (16 Dec 1960 - 15 Jan 1961)] :grid
so there will be 96 links below for the different files.
You may want to get a utility like wget which can download sets of files. For example (all one line)
wget -r -l2 -nd --no-parent -e robots=off -v --relative 'http://data-library.gov.ls/SOURCES/.NOAA/.NCEP-NCAR/.CDAS-1/.MONTHLY/.Intrinsic/.PressureLevel/.vtemp/%5BX%5Dpartial/yearly-climatology/%5BT%5Ddifferences/T/%28days%20since%201960-01-01%29streamgridunitconvert/downloadsarcinfo.html'
single quotes are necessary in unix to protect the url from expansion; probably necessary in other cases as well