# number_of_header_lines: 61
# 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:  ************ 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: pocs15
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2015-10-26 13:19:55
# 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
S15 1998  4    0.916
S15 1998  5    0.878
S15 1998  9    0.997
S15 1998 10    1.016
S15 1998 11    0.963
S15 1998 12    0.969
S15 1999  1    0.894
S15 1999  2    0.772
S15 1999  3    0.737
S15 1999  4    0.683
S15 1999  5    0.581
S15 1999  6    0.609
S15 1999  7    0.731
S15 1999  8    0.860
S15 1999  9    0.979
S15 1999 10    0.943
S15 1999 11    0.840
S15 1999 12    0.824
S15 2002  7    0.870
S15 2002  8    0.864
S15 2002  9    0.925
S15 2002 10    0.931
S15 2002 11    0.927
S15 2002 12    1.014
S15 2003  1    1.030
S15 2003  2    0.976
S15 2003  3    1.030
S15 2003  4    1.081
S15 2003  5    1.041
S15 2003  6    1.024
S15 2003  7    1.010
S15 2003  8    1.021
S15 2003  9    1.094
S15 2003 10    1.076
S15 2003 11    0.995
S15 2003 12    1.008
S15 2004  1    0.973
S15 2004  2    0.868
S15 2004  3    0.865
S15 2004  4    0.881
S15 2004  5    0.881
S15 2004  6    0.965
S15 2004  7    1.047
S15 2004  8    1.058
S15 2004  9    1.055
S15 2004 10    0.950
S15 2004 11    0.841
S15 2004 12    0.869
S15 2005  1    0.907
S15 2005  2    0.930
S15 2005  3    1.048
S15 2005  4    1.059
S15 2005  5    0.909
S15 2005  6    0.795
S15 2005  7    0.792
S15 2005  8    0.892
S15 2005  9    1.076
S15 2005 10    1.091
S15 2005 11    0.956
S15 2005 12    0.862
S15 2006  1    0.778
S15 2006  2    0.729
S15 2006  3    0.819
S15 2006  4    0.847
S15 2006  5    0.724
S15 2006  6    0.626
S15 2006  7    0.609
S15 2006  8    0.685
S15 2006  9    0.838
S15 2006 10    0.861
S15 2006 11    0.796
S15 2006 12    0.800
S15 2007  1    0.761
S15 2007  2    0.673
S15 2007  3    0.678
S15 2007  4    0.689
S15 2007  5    0.660
S15 2007  6    0.746
S15 2007  7    0.856
S15 2007  8    0.948
S15 2007  9    1.023
S15 2007 10    0.962
S15 2007 11    0.830
S15 2007 12    0.807
S15 2008  1    0.761
S15 2008  2    0.701
S15 2008  6    0.801
S15 2008  7    0.816
S15 2008  8    0.838
S15 2008  9    0.903
S15 2008 10    0.886
S15 2008 11    0.822
S15 2008 12    0.844
S15 2009  1    0.784
S15 2009  2    0.630
S15 2009  3    0.578
S15 2009  4    0.541
S15 2009  5    0.503
S15 2009  6    0.582
S15 2009  7    0.691
S15 2009  8    0.740
S15 2009  9    0.763
S15 2009 10    0.676
S15 2009 11    0.576
S15 2009 12    0.640
S15 2010  1    0.692
S15 2010  2    0.710
S15 2010  3    0.832
S15 2010  4    0.952
S15 2010  5    0.952
S15 2010 11    0.812
S15 2011  5    0.686
S15 2011  6    0.668
S15 2011  7    0.648
S15 2011  8    0.635
S15 2011  9    0.703
S15 2011 10    0.723
S15 2011 11    0.703
S15 2014 11    0.870