September 4, 2008
-----------------

Version 1 files were archived and new Version 2 L2 files were posted for
Vaira Ranch (US-Var).  The new files contain a modified header reflecting
minor changes to the AmeriFlux fair-use data policy and the new files
also include 2007 data.


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

The second version (V002) of the L3 and L4 files produced by the
CarboEurope processing techniques and were generated from Version 2 of
the L2 files.


May 19, 2009
------------

New Version 3 L2 files were posted and include 2008 data.  Pre-2008 data
did not change from Version 2 posted in September 2008.


August 28, 2009
---------------

New Version 3 L2 files were posted.  These new files provide 2008 data
for both records with gaps and gap-filled records.  Pre-2008 data did
not change from the two previous postings (Sept 2008 and May 2009).


April 13, 2010
--------------

Version 4 of the L2 files for Vaira Ranch (US-Var) were posted and include
updates through 2009.  Pre-2009 data did not change from Version 3.


October 25, 2011
----------------

Version 5 (V5) of the L2 files for Vaira Ranch (US-Var) were posted
including data through 2010.  Latent heat fluxes and soil heat fluxes have
been corrected (e.g., the soil heat fluxes were adjusted due to litter
accumulation over the soil heat flux plate) and replace all previous
values.  Details on the processing of the original files provided by
Dennis Baldocchi and team by CDIAC to produce the Level 2 standardized
files are available at

ftp://cdiac.ornl.gov/pub/ameriflux/data/Level2/Sites_ByName/Vaira_Ranch/with_gaps/report_Vaira_Ranch.html