# 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: Environment Canada [EC]
# collaborator_url: http://www.msc-smc.ec.gc.ca/aqrb/index_e.cfm
# 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: llb
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2023-07-05 12:59:14
# 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
LLB 2009  8   493.44
LLB 2010  5   512.95
LLB 2010  6   517.09
LLB 2010  7   512.08
LLB 2010  8   500.53
LLB 2010  9   493.07
LLB 2010 10   477.15
LLB 2010 11   487.48
LLB 2011  2   529.58
LLB 2011  3   531.87
LLB 2011  4   528.26
LLB 2011  5   521.19
LLB 2011  6   521.71
LLB 2011  7   512.29
LLB 2011  8   502.21
LLB 2011  9   493.32
LLB 2011 10   470.04
LLB 2011 11   466.19
LLB 2011 12   503.37
LLB 2012  1   531.58
LLB 2012  2   539.36
LLB 2012  3   555.76
LLB 2012  4   552.16
LLB 2012  5   526.40
LLB 2012  6   521.93
LLB 2012  7   525.94
LLB 2012  8   513.86
LLB 2012  9   492.11