# number_of_header_lines: 68
# comment:  
# comment:  ************ USE OF ESRL GMD DATA ****************
# comment:  
# comment: These data are made freely available to the public and the
# comment: scientific community in the belief that their wide dissemination
# comment: will lead to greater understanding and new scientific insights.
# comment: The availability of these data does not constitute publication
# comment: of the data.  NOAA relies on the ethics and integrity of the user to
# comment: insure that ESRL receives fair credit for their work.  If the data 
# comment: are obtained for potential use in a publication or presentation, 
# comment: ESRL should be informed at the outset of the nature of this work.  
# comment: If the ESRL data are essential to the work, or if an important 
# comment: result or conclusion depends on the ESRL data, co-authorship
# comment: may be appropriate.  This should be discussed at an early stage in
# comment: the work.  Manuscripts using the ESRL data should be sent to ESRL
# comment: for review before they are submitted for publication so we can
# comment: insure that the quality and limitations of the data are accurately
# comment: represented.
# comment:  
# comment: Every effort is made to produce the most accurate and precise
# comment: measurements possible.  However, we reserve the right to make
# comment: corrections to the data based on recalibration of standard gases
# comment: or for other reasons deemed scientifically justified.
# comment: 
# comment: We are not responsible for results and conclusions based on use
# comment: of these data without regard to this warning.
# comment: 
# contact_parameter: CO2O18 SIL (Individual Flasks)
# contact_name: Bruce H Vaughn
# contact_telephone: (303) 492-7985
# contact_email: Bruce.Vaughn@colorado.edu
# comment: 
# comment:  ************ COLLABORATORS ***************
# comment: 
# comment: NOAA thanks the following collaborators without
# comment: whom these measurements would not be possible.
# comment: 
# collaborator_name: University of Maine [UM]
# comment: 
# comment:  ************ RECIPROCITY AGREEMENT ***************
# comment: 
# comment: Use of these data implies an agreement to reciprocate.
# comment: Laboratories making similar measurements agree to make their
# comment: own data available to the general public and to the scientific
# comment: community in an equally complete and easily accessible form.
# comment: Modelers are encouraged to make available to the community,
# comment: upon request, their own tools used in the interpretation
# comment: of the ESRL data, namely well documented model code, transport
# comment: fields, and additional information necessary for other
# comment: scientists to repeat the work and to run modified versions.
# comment: Model availability includes collaborative support for new
# comment: users of the models.
# comment:
# comment:  ************ DATA DESCRIPTION ***************
# comment:
# description_site-code: amt
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2015-10-26 13:19:18
# comment:
# comment:  ************ DATA DOCUMENTATION ***************
# comment:
# comment: Please refer to the species-specific README file in the
# comment: appropriate directory folder at ftp://aftp.cmdl.noaa.gov/data/trace_gases/.
# comment:
# data_fields: site year month value
AMT 2003 11   -1.069
AMT 2003 12   -0.930
AMT 2004  1   -0.539
AMT 2004  2   -0.322
AMT 2004  3   -0.054
AMT 2004  4    0.040
AMT 2004  5    0.033
AMT 2004  6    0.259
AMT 2004  7    0.160
AMT 2004  8   -0.318
AMT 2004  9   -0.486
AMT 2004 10   -0.708
AMT 2004 11   -1.123
AMT 2004 12   -0.984
AMT 2005  1   -0.618
AMT 2005  2   -0.451
AMT 2005  3   -0.242
AMT 2005  4   -0.076
AMT 2005  5    0.009
AMT 2005  6    0.101
AMT 2005  7   -0.345
AMT 2005  8   -1.146
AMT 2005  9   -1.247
AMT 2005 10   -1.051
AMT 2005 11   -1.051
AMT 2005 12   -0.845
AMT 2006  1   -0.608
AMT 2006  2   -0.508
AMT 2006  3   -0.240
AMT 2006  4   -0.038
AMT 2006  5    0.020
AMT 2006  6    0.190
AMT 2006  7    0.059
AMT 2006  8   -0.401
AMT 2006  9   -0.548
AMT 2006 10   -0.805
AMT 2006 11   -1.255
AMT 2006 12   -1.152
AMT 2007  1   -0.787
AMT 2007  2   -0.631
AMT 2007  3   -0.417
AMT 2007  4   -0.196
AMT 2007  5    0.017
AMT 2007  6    0.316
AMT 2007  7    0.080
AMT 2007  8   -0.490
AMT 2007  9   -0.557
AMT 2007 10   -0.613
AMT 2007 11   -0.971
AMT 2007 12   -0.985
AMT 2008  1   -0.793
AMT 2008  2   -0.666
AMT 2008  3   -0.314
AMT 2008  4    0.103
AMT 2008  5    0.278
AMT 2008  6    0.264
AMT 2008  7   -0.342
AMT 2008  8   -1.118
AMT 2008  9   -1.082
AMT 2008 10   -0.924
AMT 2008 11   -1.135
AMT 2008 12   -1.187