# # These data are freely available for use in education and research. If the data are used for scientific publication and/or presentation, it is necessary to get approval of the data provider in advance. Judging from the nature of the data usage, the data provider may require fair acknowledgement including co-authorship to the data user. # For technical reasons, the data may be revised without any notice. This data file must be obtained from the original data site and not be re-distributed. For more information, please contact with the data provider. # # CATEGORY: d13C instantaneous data (air sampling observation) # STATION NAME : Syowa Station, Antarctica # LOCATION: 69.00 S, 39.58 E # CONTRIBUTOR: National Institute of Polar Research and Tohoku University # CONTACT PERSON: Daisuke Goto (goto.daisuke@nipr.ac.jp) # PARAMETER: carbon isotope ratio of CO2 (d13C) # COVERING PERIOD: 1995-02-09 2021-01-26 # DATA FREQUENCY: event # MEASUREMENT UNIT: per mil # MEASUREMENT METHOD: Mass spectorometer # SAMPLING TYPE: flask # MEASUREMENT SCALE: Tohoku University scale # REMARKS: date are shown in local time (UTC+3) # VERSION: 20210319 # year month day delta C-13 (per mil) 1995 2 9 -7.750 1995 2 10 -7.740 1995 2 16 -7.715 1995 2 17 -7.773 1995 2 24 -7.803 1995 2 25 -7.769 1995 3 3 -7.752 1995 3 10 -7.815 1995 3 12 -7.700 1995 3 18 -7.789 1995 3 19 -7.787 1995 3 25 -7.777 1995 3 26 -7.847 1995 4 2 -7.785 1995 4 3 -7.767 1995 4 12 -7.810 1995 4 16 -7.865 1995 4 18 -7.816 1995 4 24 -7.884 1995 4 28 -7.831 1995 4 29 -7.788 1995 5 9 -7.801 1995 5 14 -7.770 1995 5 16 -7.859 1995 5 21 -7.821 1995 5 27 -7.807 1995 5 28 -7.814 1995 6 3 -7.802 1995 6 4 -7.808 1995 6 11 -7.838 1995 6 19 -7.758 1995 6 24 -7.848 1995 7 3 -7.812 1995 7 9 -7.837 1995 7 15 -7.846 1995 7 20 -7.807 1995 7 23 -7.816 1995 7 30 -7.837 1995 8 6 -7.867 1995 8 14 -7.822 1995 8 19 -7.811 1995 8 25 -7.848 1995 9 6 -7.829 1995 9 12 -7.856 1995 9 21 -7.809 1995 9 26 -7.845 1995 10 3 -7.853 1995 10 5 -7.811 1995 10 8 -7.812 1995 10 16 -7.876 1995 10 23 -7.814 1995 10 25 -7.846 1995 10 29 -7.866 1995 11 11 -7.847 1995 11 13 -7.818 1995 11 16 -7.857 1995 11 18 -7.850 1995 11 26 -7.894 1995 12 2 -7.801 1995 12 4 -7.839 1995 12 9 -7.811 1995 12 11 -7.806 1995 12 18 -7.853 1995 12 21 -7.786 1995 12 26 -7.857 1995 12 31 -7.821 1996 1 9 -7.856 1996 1 13 -7.860 1996 1 22 -7.804 1996 1 28 -7.845 1996 2 8 -7.797 1996 2 19 -7.860 1996 2 28 -7.814 1996 3 29 -7.845 1996 4 17 -7.808 1996 4 18 -7.773 1996 4 27 -7.856 1996 5 13 -7.816 1996 5 24 -7.782 1996 5 30 -7.814 1996 6 3 -7.798 1996 6 14 -7.807 1996 6 24 -7.798 1996 7 3 -7.760 1996 7 12 -7.860 1996 7 19 -7.742 1996 7 30 -7.848 1996 8 12 -7.884 1996 8 21 -7.801 1996 9 1 -7.797 1996 9 22 -7.844 1996 9 30 -7.836 1996 10 10 -7.868 1996 10 22 -7.820 1996 10 25 -7.860 1996 11 5 -7.769 1996 11 18 -7.867 1996 11 22 -7.866 1996 12 7 -7.872 1996 12 14 -7.884 1997 1 22 -7.832 1997 4 29 -7.886 1997 5 8 -7.893 1997 5 15 -7.899 1997 5 22 -7.875 1997 6 1 -7.873 1997 6 12 -7.923 1997 7 5 -7.862 1997 7 9 -7.889 1997 7 14 -7.910 1997 7 24 -7.914 1997 7 29 -7.898 1997 8 11 -7.842 1997 8 15 -7.837 1997 8 16 -7.912 1997 8 25 -7.891 1997 9 3 -7.859 1997 9 10 -7.897 1997 9 15 -7.925 1997 9 23 -7.922 1997 10 3 -7.886 1997 10 14 -7.885 1997 10 18 -7.918 1997 10 19 -7.955 1997 11 4 -7.937 1997 11 10 -7.882 1997 11 18 -7.921 1997 11 27 -7.953 1997 12 1 -7.902 1997 12 9 -7.941 1997 12 17 -7.951 1997 12 23 -7.933 1997 12 31 -7.985 1998 1 11 -7.946 1998 1 14 -7.994 1998 1 20 -7.924 1998 1 27 -7.974 1998 2 4 -7.926 1998 2 13 -7.917 1998 2 20 -7.943 1998 2 26 -7.971 1998 3 5 -7.927 1998 3 12 -7.960 1998 3 19 -7.946 1998 3 26 -7.941 1998 4 2 -7.910 1998 4 9 -7.906 1998 4 17 -7.988 1998 4 25 -7.974 1998 5 1 -7.955 1998 5 6 -7.930 1998 5 15 -8.024 1998 5 21 -7.929 1998 5 28 -7.983 1998 6 3 -7.963 1998 6 9 -7.918 1998 6 16 -8.034 1998 6 25 -7.975 1998 7 2 -7.985 1998 7 8 -7.941 1998 7 13 -8.002 1998 7 27 -8.043 1998 8 1 -8.003 1998 8 7 -7.985 1998 8 18 -8.015 1998 8 25 -8.069 1998 8 30 -8.027 1998 9 15 -8.059 1998 9 22 -7.969 1998 10 2 -7.986 1998 10 12 -8.053 1998 10 28 -7.979 1998 11 7 -7.993 1998 11 12 -8.054 1998 11 29 -8.042 1998 12 10 -8.088 1998 12 25 -8.025 1999 1 14 -8.055 1999 1 21 -7.964 1999 1 31 -8.017 1999 2 9 -8.000 1999 3 4 -8.013 1999 3 7 -8.024 1999 3 10 -8.022 1999 3 22 -7.959 1999 3 29 -7.969 1999 4 6 -7.984 1999 4 14 -7.989 1999 4 19 -8.011 1999 4 27 -7.991 1999 5 5 -8.024 1999 5 11 -7.986 1999 5 18 -8.007 1999 5 26 -7.911 1999 6 1 -8.004 1999 6 10 -8.018 1999 6 14 -8.020 1999 6 27 -7.981 1999 6 29 -7.989 1999 7 6 -7.997 1999 7 14 -7.981 1999 7 20 -8.017 1999 7 28 -8.000 1999 8 4 -8.000 1999 8 10 -7.986 1999 8 19 -8.029 1999 8 24 -8.004 1999 8 30 -8.016 1999 9 9 -7.998 1999 9 13 -7.992 1999 9 22 -8.039 1999 9 28 -8.015 1999 10 6 -8.041 1999 10 12 -8.049 1999 10 19 -8.003 1999 10 25 -8.050 1999 11 2 -8.027 1999 11 10 -8.029 1999 11 17 -8.081 1999 11 23 -8.032 1999 11 30 -8.028 1999 12 6 -8.007 1999 12 14 -8.028 1999 12 20 -8.081 1999 12 28 -8.071 2000 1 3 -8.019 2000 1 8 -8.007 2000 1 17 -8.039 2000 1 26 -8.041 2000 2 3 999.000 2000 2 13 999.000 2000 2 19 999.000 2000 2 27 999.000 2000 3 7 999.000 2000 3 15 999.000 2000 3 28 999.000 2000 3 31 999.000 2000 4 11 999.000 2000 4 14 999.000 2000 4 22 999.000 2000 4 25 999.000 2000 5 7 999.000 2000 5 11 999.000 2000 5 23 999.000 2000 5 30 999.000 2000 6 8 999.000 2000 6 17 999.000 2000 6 22 999.000 2000 7 1 999.000 2000 7 10 999.000 2000 7 22 999.000 2000 7 26 999.000 2000 8 10 999.000 2000 8 14 999.000 2000 8 26 999.000 2000 8 30 999.000 2000 9 10 999.000 2000 9 17 999.000 2000 9 27 999.000 2000 10 2 999.000 2000 10 14 999.000 2000 10 17 999.000 2000 11 3 999.000 2000 11 9 999.000 2000 11 17 999.000 2000 11 23 999.000 2000 11 27 999.000 2000 12 14 999.000 2000 12 24 999.000 2000 12 29 999.000 2001 1 2 999.000 2001 1 26 999.000 2001 1 30 999.000 2002 2 2 -7.981 2002 2 4 -8.039 2002 2 8 -8.015 2002 2 13 -8.027 2002 2 18 -8.013 2002 2 25 -8.030 2002 3 5 -8.021 2002 3 15 -7.975 2002 3 19 -7.971 2002 3 25 -7.991 2002 3 31 -7.964 2002 4 10 -8.001 2002 4 17 -8.014 2002 4 22 -8.007 2002 5 1 -7.982 2002 5 6 -8.011 2002 5 13 -8.008 2002 5 19 -8.003 2002 5 27 -7.997 2002 6 3 -7.976 2002 6 12 -7.995 2002 6 17 -8.024 2002 6 24 -8.043 2002 7 1 -8.044 2002 7 9 -8.022 2002 7 15 -8.010 2002 7 22 -7.973 2002 7 29 -8.015 2002 8 6 -8.058 2002 8 12 -8.016 2002 8 19 -8.066 2002 8 27 -8.022 2002 9 2 -8.020 2002 9 11 -8.043 2002 9 20 -8.002 2002 9 23 -8.055 2002 9 30 -8.046 2002 10 7 -8.053 2002 10 14 -8.048 2002 10 21 -8.028 2002 10 30 -8.026 2002 11 6 -8.026 2002 11 12 -8.043 2002 11 19 -8.096 2002 11 27 -8.070 2002 12 2 -8.122 2002 12 9 -8.038 2002 12 16 -8.019 2002 12 26 -8.080 2002 12 30 -8.035 2003 1 5 -8.050 2003 1 11 -8.070 2003 1 21 -8.049 2003 2 12 -8.087 2003 2 17 -8.093 2003 2 25 -8.091 2003 3 3 -8.060 2003 3 11 -8.039 2003 3 17 -8.093 2003 3 25 -8.047 2003 4 1 -8.096 2003 4 7 -8.055 2003 4 14 -8.110 2003 4 21 -8.062 2003 4 28 -8.076 2003 5 5 -8.035 2003 5 13 -8.094 2003 5 19 -8.030 2003 5 27 -8.060 2003 6 5 -8.093 2003 6 9 -8.081 2003 6 16 -8.107 2003 6 25 -8.050 2003 7 8 -8.043 2003 7 28 -8.075 2003 8 3 -8.061 2003 8 8 -8.132 2003 8 12 -8.064 2003 8 19 -8.112 2003 8 26 -8.098 2003 9 5 -8.116 2003 9 14 -8.118 2003 9 17 -8.105 2003 9 23 -8.115 2003 10 10 -8.080 2003 10 18 -8.143 2003 10 26 -8.070 2003 10 31 -8.119 2003 11 4 -8.071 2003 11 8 -8.085 2003 11 15 -8.073 2003 11 20 -8.105 2003 11 26 -8.098 2003 12 3 -8.169 2003 12 9 -8.123 2003 12 28 -8.096 2004 1 10 -8.091 2004 1 14 -8.110 2004 1 20 -8.108 2004 1 24 -8.089 2004 1 29 -8.155 2004 2 9 -8.079 2004 2 17 -8.062 2004 2 24 -8.069 2004 3 3 -8.119 2004 3 16 -8.082 2004 3 24 -8.077 2004 3 30 -8.087 2004 4 6 -8.068 2004 4 13 -8.046 2004 4 20 -8.064 2004 4 27 -8.070 2004 5 6 -8.096 2004 5 11 -8.060 2004 5 18 -8.110 2004 5 28 -8.069 2004 6 2 -8.111 2004 6 8 -8.095 2004 6 15 -8.091 2004 6 25 -8.102 2004 6 29 -8.100 2004 7 14 -8.091 2004 7 22 -8.095 2004 7 30 -8.138 2004 8 3 -8.083 2004 8 11 -8.108 2004 8 17 -8.088 2004 8 17 -8.126 2004 8 24 -8.104 2004 8 30 -8.101 2004 9 6 -8.095 2004 9 17 -8.172 2004 9 21 -8.103 2004 9 28 -8.157 2004 10 3 -8.105 2004 10 10 -8.090 2004 10 18 -8.102 2004 10 27 -8.135 2004 11 2 -8.108 2004 11 8 -8.140 2004 11 14 -8.110 2004 11 22 -8.115 2004 11 29 -8.087 2004 12 6 -8.117 2004 12 13 -8.112 2004 12 20 -8.129 2004 12 27 -8.107 2005 1 3 -8.078 2005 1 10 -8.073 2005 1 17 -8.120 2005 1 25 -8.077 2005 2 3 -8.145 2005 2 14 -8.133 2005 2 26 -8.458 2005 3 7 -8.146 2005 3 28 -8.158 2005 6 6 -8.242 2005 6 14 -8.258 2005 7 3 -8.315 2005 7 15 -26.865 2005 7 25 -8.445 2005 10 3 -9.331 2005 10 20 -8.531 2005 11 14 -9.376 2005 11 21 -8.345 2005 11 29 -8.429 2006 2 3 -8.348 2006 2 14 -8.523 2006 3 8 -8.661 2006 3 13 -8.532 2006 3 22 -8.199 2006 6 6 -8.242 2006 6 29 -8.228 2006 7 9 -8.794 2006 7 29 -8.252 2006 10 7 -8.257 2006 10 17 -8.380 2006 11 6 -8.231 2006 11 15 -8.209 2006 11 19 -8.229 2007 2 5 -8.171 2007 2 20 -8.229 2007 3 2 -8.205 2007 3 14 -8.202 2007 3 29 -8.176 2007 6 4 -8.190 2007 6 11 -8.202 2007 7 5 -8.209 2007 7 30 -8.199 2007 10 4 -8.209 2007 10 16 -8.256 2007 10 30 -8.287 2007 11 15 -8.259 2007 11 28 -8.254 2008 2 15 -8.256 2008 3 22 -8.247 2008 4 9 -8.261 2008 4 26 -8.212 2008 5 19 999.000 2008 6 12 -8.225 2008 9 10 999.000 2008 10 12 999.000 2008 11 22 999.000 2008 12 2 999.000 2009 1 3 999.000 2009 1 26 999.000 2009 2 13 999.000 2009 3 12 999.000 2009 4 16 -8.272 2009 5 13 -8.260 2009 6 19 -8.276 2009 7 15 -8.263 2009 8 15 -8.237 2009 9 15 -8.276 2009 10 15 -8.255 2009 11 16 999.000 2009 12 16 -8.220 2010 1 15 -8.279 2010 2 5 -8.316 2010 3 16 999.000 2010 4 7 -8.288 2010 5 1 -8.274 2010 8 10 -8.487 2010 10 16 -8.308 2010 12 7 -8.304 2011 2 15 -8.289 2011 3 15 -8.291 2011 4 20 -8.260 2011 5 12 -8.284 2011 6 17 -8.259 2011 7 25 -8.310 2011 8 15 -8.292 2011 9 22 -8.290 2011 10 4 999.000 2011 11 3 -8.281 2011 12 12 -8.272 2012 1 10 -8.298 2012 2 19 -8.256 2012 3 16 -8.242 2012 4 18 -8.257 2012 5 15 -8.234 2012 6 11 -8.245 2012 7 17 -8.280 2012 8 16 -8.293 2012 9 17 -8.272 2012 10 12 -8.255 2012 11 20 -8.286 2012 12 17 -8.301 2013 1 20 -8.293 2013 2 9 -8.304 2013 3 12 -8.320 2013 4 24 -8.332 2013 5 31 -8.335 2013 6 10 -8.332 2013 7 25 -8.349 2013 8 18 -8.353 2013 9 24 -8.358 2013 10 16 999.000 2013 11 24 -8.353 2013 12 18 -8.353 2014 1 26 -8.353 2014 2 13 -8.386 2014 3 19 -8.368 2014 4 20 -8.384 2014 5 12 -8.367 2014 6 11 -8.387 2014 7 11 -8.372 2014 8 15 999.000 2014 9 9 -8.400 2014 10 3 -8.405 2014 11 9 -8.418 2014 12 23 -8.398 2015 1 9 -8.387 2015 2 16 -8.276 2015 3 11 -8.295 2015 4 20 -8.310 2015 5 18 -8.340 2015 6 15 -8.305 2015 7 14 -8.325 2015 8 16 -8.348 2015 9 13 999.000 2015 10 15 -8.343 2015 11 16 -8.356 2015 12 13 -8.389 2016 1 8 -8.418 2016 2 6 -8.490 2016 4 13 -8.495 2016 6 9 -8.509 2016 8 2 -8.506 2016 10 2 -8.517 2016 12 8 -8.509 2017 2 9 -8.443 2017 3 12 -8.456 2017 4 19 -8.471 2017 5 6 -8.448 2017 6 8 -8.449 2017 7 6 -8.494 2017 8 4 -8.470 2017 9 19 -8.495 2017 10 14 -8.511 2017 11 10 -8.501 2017 12 7 -8.525 2018 1 15 -8.509 2018 2 2 -8.569 2018 2 15 -8.531 2018 3 22 -8.566 2018 4 18 -8.480 2018 5 3 -8.524 2018 6 19 -8.482 2018 7 19 -8.556 2018 8 23 -8.538 2018 9 21 -8.621 2018 10 15 -8.824 2018 11 12 999.000 2018 12 16 -8.735 2019 1 17 -8.479 2019 1 28 -8.558 2019 2 4 -8.075 2019 2 12 999.000 2019 2 19 -8.543 2019 2 24 -8.524 2019 3 4 -8.519 2019 3 12 -8.534 2019 3 18 -8.523 2019 3 25 -8.549 2019 4 4 -8.531 2019 4 8 -8.741 2019 4 16 -8.522 2019 4 25 -8.515 2019 5 2 -8.515 2019 5 6 -8.509 2019 5 14 -8.507 2019 5 16 -8.553 2019 5 20 -8.529 2019 5 30 -8.491 2019 6 3 -8.524 2019 6 10 -8.496 2019 6 19 -8.537 2019 6 25 999.000 2019 7 5 -8.540 2019 7 8 -8.543 2019 7 19 -8.554 2019 7 26 -8.573 2019 7 30 -8.586 2019 8 7 -8.581 2019 8 17 -8.571 2019 9 23 -8.567 2019 10 4 -8.570 2019 10 8 -8.565 2019 10 17 -8.595 2019 10 24 -8.624 2019 10 28 -8.592 2019 11 10 -8.568 2019 11 15 -8.612 2019 11 20 -8.575 2019 11 27 -8.601 2019 12 5 -8.561 2019 12 10 -8.625 2019 12 17 -8.606 2019 12 23 -8.583 2019 12 30 -8.605 2020 1 6 -8.644 2020 1 15 -8.595 2020 1 20 -8.563 2020 1 26 -8.583