# number_of_header_lines: 46
# comment:  
# comment:  ************ USE OF GML DATA ****************
# comment:  
# comment: These data are made freely available to the public and the scientific
# comment: community in the belief that their wide dissemination will lead to
# comment: greater understanding and new scientific insights. To ensure that GML
# comment: receives fair credit for their work please include relevant citation
# comment: text in publications. We encourage users to contact the data providers,
# comment: who can provide detailed information about the measurements and
# comment: scientific insight.  In cases where the data are central to a
# comment: publication, coauthorship for data providers may be appropriate.
# comment: 
# comment: 
# 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: CH4 CCGG (Individual Flasks)
# contact_name: Xin Lan
# contact_telephone: (999) 999-9999
# contact_email: xin.lan@noaa.gov
# comment: 
# comment:  ************ RECIPROCITY AGREEMENT ***************
# comment: 
# comment:
# comment:  ************ DATA DESCRIPTION ***************
# comment:
# description_site-code: scsn09
# description_project-abbr: ccg_surface
# description_strategy-abbr: flask
# description_analysis-constraints: flag:..%
# description_creation-time: 2023-08-28 15:10:27
# 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
N09 1991  7  1712.00
N09 1991  8  1709.43
N09 1991  9  1717.30
N09 1991 10  1761.05
N09 1991 11  1787.43
N09 1991 12  1777.55
N09 1992  1  1779.41
N09 1992  2  1772.76
N09 1992  3  1755.59
N09 1992  4  1744.16
N09 1992  5  1727.01
N09 1992  6  1713.17
N09 1992  7  1718.97
N09 1992  8  1725.20
N09 1992  9  1734.54
N09 1992 10  1766.87
N09 1992 11  1781.55
N09 1992 12  1774.64
N09 1993  1  1781.24
N09 1993 12  1780.23
N09 1994  1  1786.70
N09 1994  2  1780.39
N09 1994  3  1774.94
N09 1994  4  1751.54
N09 1994  5  1726.31
N09 1994  6  1721.78
N09 1994  7  1729.25
N09 1994  8  1732.74
N09 1994  9  1746.46
N09 1994 10  1786.71
N09 1994 11  1800.01
N09 1994 12  1789.15
N09 1995  1  1790.04
N09 1995  2  1787.30
N09 1995  3  1780.47
N09 1995  4  1772.98
N09 1995  5  1753.22
N09 1995 10  1760.52
N09 1995 11  1800.26
N09 1995 12  1805.41
N09 1996  1  1802.58
N09 1996  2  1807.61
N09 1996  3  1820.91
N09 1996  4  1804.72
N09 1996  5  1752.61
N09 1996  6  1728.37
N09 1996  7  1731.06
N09 1996  8  1725.66
N09 1996  9  1736.85
N09 1996 10  1765.81
N09 1996 11  1790.07
N09 1996 12  1805.89
N09 1997  1  1815.73
N09 1997  2  1803.90
N09 1997  3  1778.58
N09 1997  4  1761.64
N09 1997  5  1745.12
N09 1997  6  1741.06
N09 1997  7  1753.75
N09 1997  8  1766.82
N09 1997  9  1791.45
N09 1997 10  1809.80
N09 1997 11  1801.62
N09 1997 12  1798.60
N09 1998  1  1796.96
N09 1998  2  1783.22
N09 1998  3  1778.34
N09 1998  4  1778.77
N09 1998  5  1762.76
N09 1998  6  1745.54
N09 1998  7  1746.57
N09 1998  8  1760.27
N09 1998  9  1778.39
N09 1998 10  1790.07