# monthly mean of baseline data from 2010/08 to 2023/12; created: 29-Jan-2025 # comment: AGAGE Medusa measurements. Output from GCWerks. See Miller et al. (2008). DOI:10.1021/ac702084k, and Arnold et al. (2012) DOI:10.1021/ac300373e # # data_owner_email: crl@nilu.no, oh@nilu.no # data_owner: Chris R Lunder, Ove Hermansen # station_long_name: Zeppelin, Ny-Ålesund # inlet_base_elevation_masl: 475.000000 # inlet_latitude: 78.907200 # inlet_longitude: 11.886700 # inlet_date: 2010-12-16 12:30:00 # inlet_comment: new tower # inlet_base_elevation_masl_1: 475.000000 # inlet_latitude_1: 78.907200 # inlet_longitude_1: 11.886700 # inlet_date_1: 2001-01-01 00:00:01 # # CREDIT FOR USE: This is a formal notification for data users. # For scientific purposes access to these data is unlimited and # provided without charge. By their use you accept that an offer # of co-authorship will be made through personal contact with the # data providers or owners whenever substantial use is made of # their data. In all cases an acknowledgement must be made to the # data providers or owners and the data centre when these data are # used within a publication. # # CONTACT POINT: chris.lunder@nilu.no; raywang@eas.gatech.edu # # 1st column, time in farction of year # 2nd column, year (YYYY) # 3rd column, month (1 to 12) # 4th column, mean (monthly mean value) # 5th column, std. dev. (standard deviation of monthly mean) # 6th column, numb (number of measurements for monthly mean) # time year month mean std. dev. numb 2010.625 2010 8 NaN NaN 0 2010.708 2010 9 11.638 0.467 173 2010.792 2010 10 12.135 0.463 291 2010.875 2010 11 12.241 0.402 329 2010.958 2010 12 12.260 0.346 131 2011.042 2011 1 12.119 0.293 237 2011.125 2011 2 11.852 0.167 118 2011.208 2011 3 11.711 0.201 276 2011.292 2011 4 11.604 0.169 283 2011.375 2011 5 10.922 0.308 260 2011.458 2011 6 10.261 0.369 209 2011.542 2011 7 10.305 0.478 176 2011.625 2011 8 10.891 0.684 163 2011.708 2011 9 11.852 0.548 222 2011.792 2011 10 12.434 0.306 315 2011.875 2011 11 12.669 0.251 270 2011.958 2011 12 12.812 0.352 127 2012.042 2012 1 12.164 0.298 235 2012.125 2012 2 11.877 0.292 142 2012.208 2012 3 11.824 0.195 230 2012.292 2012 4 11.784 0.206 186 2012.375 2012 5 11.178 0.315 279 2012.458 2012 6 10.496 0.199 141 2012.542 2012 7 NaN NaN 0 2012.625 2012 8 NaN NaN 0 2012.708 2012 9 11.833 0.263 179 2012.792 2012 10 12.313 0.323 210 2012.875 2012 11 12.841 0.259 174 2012.958 2012 12 12.748 0.323 227 2013.042 2013 1 12.442 0.350 214 2013.125 2013 2 12.281 0.236 128 2013.208 2013 3 12.302 0.161 199 2013.292 2013 4 12.284 0.227 302 2013.375 2013 5 11.650 0.253 274 2013.458 2013 6 11.280 0.413 70 2013.542 2013 7 10.986 0.524 150 2013.625 2013 8 11.577 0.490 230 2013.708 2013 9 12.161 0.259 134 2013.792 2013 10 13.221 0.512 255 2013.875 2013 11 14.187 0.257 242 2013.958 2013 12 14.419 0.269 135 2014.042 2014 1 13.854 0.296 204 2014.125 2014 2 13.585 0.250 94 2014.208 2014 3 13.581 0.276 310 2014.292 2014 4 13.869 0.234 99 2014.375 2014 5 13.133 0.382 208 2014.458 2014 6 12.139 0.384 295 2014.542 2014 7 12.178 0.421 195 2014.625 2014 8 11.993 0.749 225 2014.708 2014 9 12.799 0.592 294 2014.792 2014 10 13.916 0.305 243 2014.875 2014 11 14.440 0.330 268 2014.958 2014 12 13.820 0.523 154 2015.042 2015 1 13.649 0.353 226 2015.125 2015 2 13.680 0.429 230 2015.208 2015 3 13.049 0.306 164 2015.292 2015 4 12.807 0.217 240 2015.375 2015 5 12.680 0.206 191 2015.458 2015 6 12.999 0.307 117 2015.542 2015 7 13.204 0.718 265 2015.625 2015 8 13.087 0.663 283 2015.708 2015 9 13.518 0.545 142 2015.792 2015 10 NaN NaN 0 2015.875 2015 11 NaN NaN 0 2015.958 2015 12 NaN NaN 0 2016.042 2016 1 NaN NaN 0 2016.125 2016 2 NaN NaN 0 2016.208 2016 3 15.054 0.221 158 2016.292 2016 4 14.490 0.188 121 2016.375 2016 5 13.852 0.341 201 2016.458 2016 6 12.744 0.325 88 2016.542 2016 7 12.900 0.364 79 2016.625 2016 8 13.036 0.416 263 2016.708 2016 9 13.001 0.424 223 2016.792 2016 10 14.031 0.522 121 2016.875 2016 11 14.984 0.604 155 2016.958 2016 12 15.965 0.370 86 2017.042 2017 1 15.944 0.313 170 2017.125 2017 2 15.261 0.306 162 2017.208 2017 3 14.876 0.390 100 2017.292 2017 4 15.029 0.171 145 2017.375 2017 5 14.598 0.273 211 2017.458 2017 6 13.539 0.495 166 2017.542 2017 7 13.196 0.384 44 2017.625 2017 8 13.842 0.282 180 2017.708 2017 9 14.170 0.493 126 2017.792 2017 10 15.682 0.808 192 2017.875 2017 11 17.385 0.428 166 2017.958 2017 12 17.811 0.337 165 2018.042 2018 1 16.786 0.635 128 2018.125 2018 2 16.434 0.457 178 2018.208 2018 3 16.664 0.290 182 2018.292 2018 4 16.733 0.193 194 2018.375 2018 5 16.250 0.336 255 2018.458 2018 6 14.828 0.543 216 2018.542 2018 7 14.357 0.535 208 2018.625 2018 8 13.615 0.812 161 2018.708 2018 9 12.809 0.592 174 2018.792 2018 10 12.802 0.788 202 2018.875 2018 11 12.431 0.481 93 2018.958 2018 12 13.178 0.654 137 2019.042 2019 1 13.114 0.473 150 2019.125 2019 2 12.397 0.393 170 2019.208 2019 3 12.173 0.399 183 2019.292 2019 4 11.836 0.465 153 2019.375 2019 5 11.539 0.639 163 2019.458 2019 6 10.588 0.672 129 2019.542 2019 7 10.447 0.484 150 2019.625 2019 8 10.785 0.398 154 2019.708 2019 9 10.813 0.307 147 2019.792 2019 10 11.001 0.577 52 2019.875 2019 11 11.591 0.345 55 2019.958 2019 12 12.944 0.279 98 2020.042 2020 1 13.568 0.398 152 2020.125 2020 2 13.731 0.359 186 2020.208 2020 3 13.007 0.309 92 2020.292 2020 4 12.456 0.581 152 2020.375 2020 5 11.902 0.313 219 2020.458 2020 6 11.874 0.400 198 2020.542 2020 7 12.605 0.314 33 2020.625 2020 8 12.517 0.421 156 2020.708 2020 9 12.581 0.559 109 2020.792 2020 10 13.017 0.506 259 2020.875 2020 11 13.703 0.389 258 2020.958 2020 12 13.727 0.413 213 2021.042 2021 1 12.820 0.356 227 2021.125 2021 2 13.008 0.347 174 2021.208 2021 3 13.135 0.269 228 2021.292 2021 4 12.634 0.355 194 2021.375 2021 5 11.438 0.460 268 2021.458 2021 6 11.356 0.316 234 2021.542 2021 7 11.379 0.478 123 2021.625 2021 8 10.997 0.377 236 2021.708 2021 9 11.256 0.496 170 2021.792 2021 10 12.695 0.347 221 2021.875 2021 11 13.910 0.475 231 2021.958 2021 12 14.002 0.444 244 2022.042 2022 1 13.682 0.362 185 2022.125 2022 2 13.282 0.570 53 2022.208 2022 3 12.745 0.288 260 2022.292 2022 4 12.177 0.263 176 2022.375 2022 5 11.730 0.481 213 2022.458 2022 6 11.774 0.303 13 2022.542 2022 7 10.794 0.372 116 2022.625 2022 8 NaN NaN 0 2022.708 2022 9 12.081 0.505 29 2022.792 2022 10 12.956 0.392 87 2022.875 2022 11 12.716 0.250 46 2022.958 2022 12 12.489 0.250 183 2023.042 2023 1 12.071 0.513 108 2023.125 2023 2 12.062 0.245 238 2023.208 2023 3 11.974 0.212 295 2023.292 2023 4 11.807 0.256 219 2023.375 2023 5 11.149 0.229 124 2023.458 2023 6 10.354 0.446 277 2023.542 2023 7 10.248 0.370 184 2023.625 2023 8 10.916 0.367 243 2023.708 2023 9 11.643 0.266 190 2023.792 2023 10 12.328 0.294 267 2023.875 2023 11 12.897 0.249 281 2023.958 2023 12 13.029 0.257 273