# 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 9 464.527 11.517 235 2010.792 2010 10 481.712 6.860 317 2010.875 2010 11 498.876 7.585 314 2010.958 2010 12 518.264 5.928 146 2011.042 2011 1 533.529 3.923 272 2011.125 2011 2 540.551 3.346 127 2011.208 2011 3 546.896 4.509 326 2011.292 2011 4 551.576 3.361 289 2011.375 2011 5 544.054 5.721 263 2011.458 2011 6 511.328 16.639 294 2011.542 2011 7 470.094 8.419 277 2011.625 2011 8 457.888 11.464 321 2011.708 2011 9 464.191 6.141 308 2011.792 2011 10 467.578 6.696 283 2011.875 2011 11 492.833 7.884 258 2011.958 2011 12 513.371 8.295 188 2012.042 2012 1 522.030 5.592 252 2012.125 2012 2 529.988 4.853 194 2012.208 2012 3 544.517 4.597 272 2012.292 2012 4 552.224 4.781 202 2012.375 2012 5 548.757 7.665 299 2012.458 2012 6 521.879 7.558 140 2012.542 2012 7 NaN NaN 0 2012.625 2012 8 NaN NaN 0 2012.708 2012 9 477.254 8.834 269 2012.792 2012 10 486.020 7.496 313 2012.875 2012 11 499.583 8.468 191 2012.958 2012 12 521.836 7.869 279 2013.042 2013 1 539.403 9.274 300 2013.125 2013 2 548.328 5.794 275 2013.208 2013 3 560.981 6.950 214 2013.292 2013 4 567.126 3.677 304 2013.375 2013 5 557.708 5.961 288 2013.458 2013 6 529.277 11.371 229 2013.542 2013 7 486.445 11.004 200 2013.625 2013 8 471.089 8.896 255 2013.708 2013 9 466.273 8.424 180 2013.792 2013 10 477.411 7.263 318 2013.875 2013 11 493.859 8.760 245 2013.958 2013 12 516.835 10.740 261 2014.042 2014 1 535.964 3.697 221 2014.125 2014 2 543.852 4.025 298 2014.208 2014 3 550.210 3.528 313 2014.292 2014 4 555.167 3.849 76 2014.375 2014 5 543.961 3.505 150 2014.458 2014 6 526.575 7.808 314 2014.542 2014 7 487.955 17.057 250 2014.625 2014 8 452.493 14.602 221 2014.708 2014 9 463.157 7.281 305 2014.792 2014 10 473.584 7.383 226 2014.875 2014 11 496.272 8.307 148 2014.958 2014 12 520.289 11.170 294 2015.042 2015 1 539.429 7.607 246 2015.125 2015 2 545.563 5.029 243 2015.208 2015 3 550.866 3.307 196 2015.292 2015 4 552.670 2.778 303 2015.375 2015 5 546.536 5.593 200 2015.458 2015 6 520.998 11.772 146 2015.542 2015 7 482.090 9.362 291 2015.625 2015 8 470.843 10.029 285 2015.708 2015 9 460.105 10.842 130 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 3 574.185 3.013 193 2016.292 2016 4 582.596 2.404 101 2016.375 2016 5 572.690 8.822 229 2016.458 2016 6 540.460 10.935 127 2016.542 2016 7 492.347 16.088 208 2016.625 2016 8 463.460 10.022 277 2016.708 2016 9 465.467 7.964 205 2016.792 2016 10 488.041 9.954 140 2016.875 2016 11 502.523 5.420 223 2016.958 2016 12 514.927 5.738 105 2017.042 2017 1 532.125 6.086 219 2017.125 2017 2 547.074 4.369 162 2017.208 2017 3 557.226 3.955 211 2017.292 2017 4 563.471 4.180 138 2017.375 2017 5 559.384 5.785 214 2017.458 2017 6 527.111 14.586 195 2017.542 2017 7 487.490 16.734 67 2017.625 2017 8 455.699 10.277 195 2017.708 2017 9 466.723 13.596 189 2017.792 2017 10 484.272 5.629 238 2017.875 2017 11 497.760 12.986 170 2017.958 2017 12 516.655 8.053 197 2018.042 2018 1 533.763 4.758 137 2018.125 2018 2 544.451 5.038 185 2018.208 2018 3 554.778 4.139 196 2018.292 2018 4 561.825 4.283 189 2018.375 2018 5 557.644 6.457 263 2018.458 2018 6 528.246 14.333 205 2018.542 2018 7 487.606 11.189 222 2018.625 2018 8 461.191 10.218 164 2018.708 2018 9 459.152 5.163 180 2018.792 2018 10 471.910 8.613 218 2018.875 2018 11 492.829 7.844 140 2018.958 2018 12 511.313 8.339 207 2019.042 2019 1 520.810 6.577 219 2019.125 2019 2 534.689 5.019 201 2019.208 2019 3 544.690 5.798 222 2019.292 2019 4 555.648 3.135 188 2019.375 2019 5 548.261 8.224 201 2019.458 2019 6 508.942 11.692 133 2019.542 2019 7 473.543 10.021 154 2019.625 2019 8 451.634 10.401 162 2019.708 2019 9 464.342 6.379 160 2019.792 2019 10 470.008 8.428 179 2019.875 2019 11 492.322 5.452 125 2019.958 2019 12 517.269 8.516 146 2020.042 2020 1 523.152 9.167 186 2020.125 2020 2 530.558 4.370 186 2020.208 2020 3 536.181 4.201 119 2020.292 2020 4 547.740 2.700 164 2020.375 2020 5 538.690 6.555 213 2020.458 2020 6 518.826 7.932 142 2020.542 2020 7 481.260 8.385 51 2020.625 2020 8 457.870 13.217 160 2020.708 2020 9 459.661 9.195 134 2020.792 2020 10 477.090 8.116 229 2020.875 2020 11 490.530 7.410 266 2020.958 2020 12 505.382 7.166 233 2021.042 2021 1 527.849 3.872 211 2021.125 2021 2 538.136 4.955 172 2021.208 2021 3 546.404 3.318 268 2021.292 2021 4 546.631 3.306 256 2021.375 2021 5 540.513 5.911 299 2021.458 2021 6 515.730 9.697 254 2021.542 2021 7 480.798 14.665 264 2021.625 2021 8 461.888 9.794 275 2021.708 2021 9 462.180 9.707 269 2021.792 2021 10 486.124 9.912 271 2021.875 2021 11 496.042 6.763 262 2021.958 2021 12 518.301 7.079 279 2022.042 2022 1 529.732 6.980 303 2022.125 2022 2 539.274 3.336 52 2022.208 2022 3 551.520 4.355 239 2022.292 2022 4 559.652 2.491 233 2022.375 2022 5 556.635 3.680 222 2022.458 2022 6 534.878 3.808 51 2022.542 2022 7 496.482 5.962 97 2022.625 2022 8 NaN NaN 0 2022.708 2022 9 473.472 5.815 56 2022.792 2022 10 475.049 6.013 124 2022.875 2022 11 506.539 4.632 24 2022.958 2022 12 511.782 4.605 202 2023.042 2023 1 526.278 3.917 104 2023.125 2023 2 533.811 3.758 278 2023.208 2023 3 541.706 4.496 254 2023.292 2023 4 551.625 2.927 279 2023.375 2023 5 546.454 7.758 120 2023.458 2023 6 522.515 7.823 232 2023.542 2023 7 480.074 13.619 280 2023.625 2023 8 472.140 8.678 211 2023.708 2023 9 468.601 6.816 230 2023.792 2023 10 477.555 7.400 257 2023.875 2023 11 497.096 10.451 301 2023.958 2023 12 519.469 7.940 290