# 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 9 533.807 0.732 236 2010.792 2010 10 533.356 0.788 212 2010.875 2010 11 533.514 0.703 225 2010.958 2010 12 533.445 0.779 134 2011.042 2011 1 533.198 0.542 280 2011.125 2011 2 532.598 0.841 122 2011.208 2011 3 531.708 0.657 328 2011.292 2011 4 531.402 0.647 303 2011.375 2011 5 532.330 0.832 139 2011.458 2011 6 531.944 0.571 301 2011.542 2011 7 530.934 0.571 307 2011.625 2011 8 530.553 0.673 316 2011.708 2011 9 530.617 0.659 312 2011.792 2011 10 530.653 0.523 315 2011.875 2011 11 530.554 0.464 298 2011.958 2011 12 530.661 0.519 215 2012.042 2012 1 530.458 0.605 250 2012.125 2012 2 530.673 0.800 203 2012.208 2012 3 530.348 0.711 308 2012.292 2012 4 529.703 0.676 194 2012.375 2012 5 528.871 0.949 291 2012.458 2012 6 527.809 0.576 127 2012.542 2012 7 NaN NaN 0 2012.625 2012 8 NaN NaN 0 2012.708 2012 9 NaN NaN 0 2012.792 2012 10 NaN NaN 0 2012.875 2012 11 NaN NaN 0 2012.958 2012 12 NaN NaN 0 2013.042 2013 1 NaN NaN 0 2013.125 2013 2 NaN NaN 0 2013.208 2013 3 NaN NaN 0 2013.292 2013 4 NaN NaN 0 2013.375 2013 5 NaN NaN 0 2013.458 2013 6 NaN NaN 0 2013.542 2013 7 NaN NaN 0 2013.625 2013 8 NaN NaN 0 2013.708 2013 9 NaN NaN 0 2013.792 2013 10 NaN NaN 0 2013.875 2013 11 NaN NaN 0 2013.958 2013 12 NaN NaN 0 2014.042 2014 1 NaN NaN 0 2014.125 2014 2 NaN NaN 0 2014.208 2014 3 NaN NaN 0 2014.292 2014 4 NaN NaN 0 2014.375 2014 5 NaN NaN 0 2014.458 2014 6 NaN NaN 0 2014.542 2014 7 NaN NaN 0 2014.625 2014 8 NaN NaN 0 2014.708 2014 9 NaN NaN 0 2014.792 2014 10 NaN NaN 0 2014.875 2014 11 NaN NaN 0 2014.958 2014 12 NaN NaN 0 2015.042 2015 1 NaN NaN 0 2015.125 2015 2 NaN NaN 0 2015.208 2015 3 NaN NaN 0 2015.292 2015 4 NaN NaN 0 2015.375 2015 5 NaN NaN 0 2015.458 2015 6 NaN NaN 0 2015.542 2015 7 NaN NaN 0 2015.625 2015 8 NaN NaN 0 2015.708 2015 9 NaN NaN 0 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 NaN NaN 0 2016.292 2016 4 516.410 0.522 116 2016.375 2016 5 516.604 0.440 228 2016.458 2016 6 516.908 0.393 161 2016.542 2016 7 516.407 0.799 181 2016.625 2016 8 515.351 0.448 301 2016.708 2016 9 514.668 0.453 243 2016.792 2016 10 515.063 0.549 132 2016.875 2016 11 514.696 0.532 156 2016.958 2016 12 NaN NaN 0 2017.042 2017 1 514.659 0.454 199 2017.125 2017 2 514.525 0.499 190 2017.208 2017 3 514.013 0.496 212 2017.292 2017 4 513.358 0.427 146 2017.375 2017 5 513.072 0.344 214 2017.458 2017 6 512.276 0.375 204 2017.542 2017 7 511.674 0.480 65 2017.625 2017 8 511.003 0.362 211 2017.708 2017 9 510.957 0.393 201 2017.792 2017 10 511.178 0.335 235 2017.875 2017 11 511.429 0.336 181 2017.958 2017 12 511.456 0.398 182 2018.042 2018 1 511.384 0.448 127 2018.125 2018 2 511.217 0.334 199 2018.208 2018 3 511.293 0.337 195 2018.292 2018 4 510.862 0.343 193 2018.375 2018 5 510.166 0.375 264 2018.458 2018 6 509.401 0.608 212 2018.542 2018 7 508.237 0.414 263 2018.625 2018 8 507.558 0.509 180 2018.708 2018 9 507.427 0.363 185 2018.792 2018 10 507.455 0.360 220 2018.875 2018 11 507.747 0.399 154 2018.958 2018 12 507.724 0.352 221 2019.042 2019 1 507.589 0.386 221 2019.125 2019 2 507.612 0.412 205 2019.208 2019 3 507.278 0.421 221 2019.292 2019 4 506.951 0.386 193 2019.375 2019 5 506.714 0.433 220 2019.458 2019 6 506.206 0.452 135 2019.542 2019 7 504.925 0.590 170 2019.625 2019 8 504.057 0.635 179 2019.708 2019 9 503.418 0.356 14 2019.792 2019 10 NaN NaN 0 2019.875 2019 11 NaN NaN 0 2019.958 2019 12 NaN NaN 0 2020.042 2020 1 NaN NaN 0 2020.125 2020 2 502.710 0.655 15 2020.208 2020 3 502.719 0.636 123 2020.292 2020 4 502.603 0.512 169 2020.375 2020 5 502.366 0.629 215 2020.458 2020 6 501.934 0.465 105 2020.542 2020 7 501.489 0.856 61 2020.625 2020 8 500.914 0.948 159 2020.708 2020 9 500.313 1.086 182 2020.792 2020 10 499.777 0.777 295 2020.875 2020 11 499.864 0.786 271 2020.958 2020 12 500.437 0.676 238 2021.042 2021 1 499.971 0.589 232 2021.125 2021 2 499.828 0.548 192 2021.208 2021 3 499.643 0.469 297 2021.292 2021 4 498.966 0.497 263 2021.375 2021 5 498.809 0.450 298 2021.458 2021 6 498.229 0.501 261 2021.542 2021 7 497.604 0.802 272 2021.625 2021 8 496.575 0.850 300 2021.708 2021 9 495.990 0.814 291 2021.792 2021 10 496.659 0.676 264 2021.875 2021 11 496.458 0.947 259 2021.958 2021 12 496.409 1.097 263 2022.042 2022 1 495.441 1.223 255 2022.125 2022 2 494.980 0.770 37 2022.208 2022 3 495.332 0.502 265 2022.292 2022 4 495.304 0.415 230 2022.375 2022 5 495.014 0.499 263 2022.458 2022 6 494.488 0.532 60 2022.542 2022 7 NaN NaN 0 2022.625 2022 8 NaN NaN 0 2022.708 2022 9 NaN NaN 0 2022.792 2022 10 NaN NaN 0 2022.875 2022 11 492.549 0.586 43 2022.958 2022 12 491.360 0.878 225 2023.042 2023 1 491.468 0.536 125 2023.125 2023 2 491.403 0.565 274 2023.208 2023 3 491.062 0.657 314 2023.292 2023 4 490.650 0.869 152 2023.375 2023 5 490.141 0.588 121 2023.458 2023 6 489.162 0.759 294 2023.542 2023 7 488.436 0.734 280 2023.625 2023 8 487.685 0.610 308 2023.708 2023 9 487.275 0.653 246 2023.792 2023 10 485.974 0.583 259 2023.875 2023 11 486.166 0.556 299 2023.958 2023 12 486.684 0.497 302