# number_of_header_lines: 70
# comment:  
# comment:  ************ USE OF GML 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: ensure that GML receives fair credit for their work.  If the data 
# comment: are obtained for potential use in a publication or presentation, 
# comment: GML should be informed at the outset of the nature of this work.  
# comment: If the GML data are essential to the work, or if an important 
# comment: result or conclusion depends on the GML data, co-authorship
# comment: may be appropriate.  This should be discussed at an early stage in
# comment: the work.  Manuscripts using the GML data should be sent to GML
# comment: for review before they are submitted for publication so we can
# comment: ensure that the quality and limitations of the data are accurately
# comment: represented.
# comment: Please see accompanying README file, if available, for citation text.
# 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: H2 CCGG (Individual Flasks)
# contact_name: Gabrielle Petron
# contact_telephone: (720) 295-0145
# contact_email: Gabrielle.Petron@noaa.gov
# comment: 
# comment:  ************ COLLABORATORS ***************
# comment: 
# comment: NOAA thanks the following collaborators without
# comment: whom these measurements would not be possible.
# comment: 
# collaborator_name: NOAA Atlantic Oceanographic and Meteorological
# collaborator_name: Laboratory [AOML]
# 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 GML data, namely well documented model code, transport
# comment: fields, modeled mole fractions, and additional information 
# comment: necessary for other scientists to repeat the work and to run 
# comment: modified versions. Model availability includes collaborative 
# comment: support for new users of the models.
# comment:
# comment:  ************ DATA DESCRIPTION ***************
# comment:
# description_site-code: key
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2023-07-05 12:59:11
# comment:
# comment:  ************ DATA DOCUMENTATION ***************
# comment:
# comment: Please refer to the species-specific README file in the
# comment: appropriate directory folder at https://gml.noaa.gov/aftp/data/trace_gases/.
# comment:
# data_fields: site year month value
KEY 2009 10   523.68
KEY 2009 11   521.55
KEY 2009 12   531.72
KEY 2010  1   530.90
KEY 2010  2   527.92
KEY 2010  3   536.89
KEY 2010  4   542.99
KEY 2010  5   543.40
KEY 2010  6   547.45
KEY 2010  7   547.64
KEY 2010  8   537.44
KEY 2010  9   524.43
KEY 2010 10   517.42
KEY 2010 11   516.66
KEY 2010 12   519.85
KEY 2011  1   525.30
KEY 2011  2   534.49
KEY 2011  3   544.04
KEY 2011  4   546.57
KEY 2011  5   548.31
KEY 2011  6   552.42
KEY 2011  7   553.18
KEY 2011  8   552.09
KEY 2011  9   547.08
KEY 2011 10   535.62
KEY 2011 11   524.14
KEY 2011 12   520.92
KEY 2012  1   523.13
KEY 2012  2   530.28
KEY 2012  3   539.86
KEY 2012  4   547.08
KEY 2012  5   549.91
KEY 2012  6   549.04
KEY 2012  7   549.03
KEY 2012  8   549.35
KEY 2012  9   541.62
KEY 2012 10   530.10
KEY 2012 11   530.24
KEY 2012 12   534.81
KEY 2013  1   536.30
KEY 2013  2   539.87
KEY 2013  3   545.34
KEY 2013  4   551.73
KEY 2013  5   557.28
KEY 2013  6   557.90
KEY 2013  7   556.73
KEY 2013  8   555.72
KEY 2013  9   546.29
KEY 2013 10   527.47
KEY 2013 11   519.75
KEY 2013 12   525.91
KEY 2014  1   529.62
KEY 2014  2   532.34
KEY 2014  3   538.82
KEY 2014  4   543.84
KEY 2014  5   548.19
KEY 2014  6   554.63
KEY 2014  7   556.07
KEY 2014  8   551.92
KEY 2014  9   545.20
KEY 2014 10   533.94
KEY 2014 11   529.08
KEY 2014 12   532.49
KEY 2015  1   533.03
KEY 2015  2   533.20
KEY 2015  3   539.60
KEY 2015  4   545.17
KEY 2015  5   547.17
KEY 2015  6   550.17
KEY 2015  7   553.32
KEY 2015  8   553.92
KEY 2015  9   547.01
KEY 2015 10   534.65
KEY 2015 11   529.81
KEY 2015 12   529.82
KEY 2016  1   528.51
KEY 2016  2   533.42
KEY 2016  3   543.32
KEY 2016  4   547.75
KEY 2016  5   553.81
KEY 2016  6   559.15
KEY 2016  7   556.57
KEY 2016  8   555.04
KEY 2016  9   548.56
KEY 2016 10   528.56
KEY 2016 11   513.55
KEY 2016 12   520.91
KEY 2017  1   534.81
KEY 2017  2   544.61
KEY 2017  3   548.93
KEY 2017  4   550.67
KEY 2017  5   555.41
KEY 2017  6   557.76
KEY 2017  7   553.57
KEY 2017  8   552.21
KEY 2017  9   551.67
KEY 2017 10   542.22
KEY 2017 11   535.63
KEY 2017 12   536.81
KEY 2018  1   538.19
KEY 2018  2   542.61
KEY 2018  3   549.35
KEY 2018  4   554.86
KEY 2018  5   564.09
KEY 2018  6   571.69
KEY 2018  7   567.65
KEY 2018  8   559.50
KEY 2018  9   550.59
KEY 2018 10   536.47
KEY 2018 11   528.53
KEY 2018 12   531.11
KEY 2019  1   535.65
KEY 2019  2   540.84
KEY 2019  3   549.09
KEY 2019  4   557.13
KEY 2019  5   562.14
KEY 2019  6   565.87
KEY 2019  7   565.59
KEY 2019  8   559.67
KEY 2019  9   551.25
KEY 2019 10   537.45
KEY 2019 11   526.78
KEY 2019 12   532.05
KEY 2020  1   543.68
KEY 2020  2   547.48
KEY 2020  3   546.35
KEY 2020  4   546.65
KEY 2020  5   552.26
KEY 2020  6   560.43
KEY 2020  7   561.14
KEY 2020  8   557.05
KEY 2020  9   551.76
KEY 2020 10   544.57
KEY 2020 11   540.72
KEY 2020 12   542.62
KEY 2021  1   546.38
KEY 2021  2   549.41
KEY 2021  3   551.82
KEY 2021  4   553.39
KEY 2021  5   556.74
KEY 2021  6   561.57
KEY 2021  7   566.51
KEY 2021  8   573.10
KEY 2021  9   567.18
KEY 2021 10   548.15
KEY 2021 11   540.31
KEY 2021 12   548.22