# 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: CO2C13 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: Environment Canada [EC]
# 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: mbc
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2015-10-26 13:18:13
# 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
MBC 1992  2   -8.229
MBC 1992  3   -8.258
MBC 1992  4   -8.245
MBC 1992  5   -8.251
MBC 1992  6   -8.138
MBC 1992  7   -7.788
MBC 1992  8   -7.448
MBC 1992  9   -7.461
MBC 1992 10   -7.719
MBC 1992 11   -8.001
MBC 1992 12   -8.154
MBC 1993  1   -8.207
MBC 1993  2   -8.266
MBC 1993  3   -8.295
MBC 1993  4   -8.256
MBC 1993  5   -8.243
MBC 1993  6   -8.143
MBC 1993  7   -7.764
MBC 1993  8   -7.443
MBC 1993  9   -7.464
MBC 1993 10   -7.696
MBC 1993 11   -7.949
MBC 1993 12   -8.094
MBC 1994  1   -8.171
MBC 1994  2   -8.272
MBC 1994  3   -8.326
MBC 1994  4   -8.285
MBC 1994  5   -8.275
MBC 1994  6   -8.202
MBC 1994  7   -7.861
MBC 1994  8   -7.548
MBC 1994  9   -7.559
MBC 1994 10   -7.790
MBC 1994 11   -8.056
MBC 1994 12   -8.218
MBC 1995  1   -8.277
MBC 1995  2   -8.343
MBC 1995  3   -8.377
MBC 1995  4   -8.323
MBC 1995  5   -8.307
MBC 1995  6   -8.243
MBC 1995  7   -7.914
MBC 1995  8   -7.593
MBC 1995  9   -7.615
MBC 1995 10   -7.869
MBC 1995 11   -8.137
MBC 1995 12   -8.318
MBC 1996  1   -8.343
MBC 1996  2   -8.348
MBC 1996  3   -8.346
MBC 1996  4   -8.321
MBC 1996  5   -8.375
MBC 1996  6   -8.350
MBC 1996  7   -8.022
MBC 1996  8   -7.680
MBC 1996  9   -7.638
MBC 1996 10   -7.801
MBC 1996 11   -8.051
MBC 1996 12   -8.235
MBC 1997  1   -8.304
MBC 1997  2   -8.369
MBC 1997  3   -8.402
MBC 1997  4   -8.349
MBC 1997  5   -8.342