# 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: 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 13:19:45
# 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   -0.047
MBC 1992  3   -0.018
MBC 1992  4    0.088
MBC 1992  5    0.112
MBC 1992  6   -0.041
MBC 1992  7   -0.159
MBC 1992  8   -0.396
MBC 1992  9   -0.781
MBC 1992 10   -0.950
MBC 1992 11   -0.865
MBC 1992 12   -0.656
MBC 1993  1   -0.300
MBC 1993  2   -0.058
MBC 1993  3    0.016
MBC 1993  4    0.109
MBC 1993  5    0.052
MBC 1993  6   -0.251
MBC 1993  7   -0.527
MBC 1993  8   -0.825
MBC 1993  9   -1.128
MBC 1993 10   -1.190
MBC 1993 11   -1.000
MBC 1993 12   -0.776
MBC 1994  1   -0.517
MBC 1994  2   -0.406
MBC 1994  3   -0.369
MBC 1994  4   -0.153
MBC 1994  5   -0.026
MBC 1994  6   -0.175
MBC 1994  7   -0.427
MBC 1994  8   -0.789
MBC 1994  9   -1.190
MBC 1994 10   -1.374
MBC 1994 11   -1.276
MBC 1994 12   -1.047
MBC 1995  1   -0.733
MBC 1995  2   -0.540
MBC 1995  3   -0.423
MBC 1995  4   -0.238
MBC 1995  5   -0.265
MBC 1995  6   -0.577
MBC 1995  7   -0.855
MBC 1995  8   -1.001
MBC 1995  9   -1.144
MBC 1995 10   -1.191
MBC 1995 11   -1.214
MBC 1995 12   -1.198
MBC 1996  1   -0.956
MBC 1996  2   -0.683
MBC 1996  3   -0.468
MBC 1996  4   -0.274
MBC 1996  5   -0.273
MBC 1996  6   -0.467
MBC 1996  7   -0.583
MBC 1996  8   -0.757
MBC 1996  9   -1.074
MBC 1996 10   -1.214
MBC 1996 11   -1.178
MBC 1996 12   -1.041
MBC 1997  1   -0.822
MBC 1997  2   -0.661
MBC 1997  3   -0.572
MBC 1997  4   -0.407
MBC 1997  5   -0.359