February 24, 2005
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The first batch of data for the Howland Forest West Tower site (US-Ho2)
were posted.  Version 1 covers the period 1999 to 2002.  The US-Ho2 site
is the nitrogen fertilization site.


February 28, 2006
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Posted Version 2 (V002) of the US-Ho2 Level 1 data provided by Dave
Hollinger & team.  These data cover the period 1999-2004.


September 5, 2008
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Posted the US-Ho2 V002 Level 2, 3, and 4 files.


December 21, 2010
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Posted Version 3 (V003) of the US-Ho2 Level 2 data provided by Dave
Hollinger & team.  These data cover the period 1999-2009 and replace
all previous Level 2 data as the complete data set was reprocessed.
Details on the processing by CDIAC of the V003 Level 1 data provided by Dave
Hollinger to produce the V003 L2 files posted today are provided at

ftp://cdiac.ornl.gov/pub/ameriflux/data/Level2/Sites_ByName/Howland_Forest_West_Tower/with_gaps/report_Howland_Forest_West_Tower.html