September 2, 2008
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Posted new L2 files (Version 2).  The new files contain corrected Fc
values with consistent units.


October 13, 2008
----------------

Posted Version 2 L3 and L4 files.


December 10, 2009
-----------------

Posted Version 3 of the L2 files.  The new files contain data until the
end of the EC measurement program at Blodgett Forest (i.e., Summer 2007)
and provide data in the preferred network units and nomenclature.