# 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 9 239.944 0.468 256 2010.792 2010 10 240.130 0.506 308 2010.875 2010 11 240.292 0.445 323 2010.958 2010 12 240.241 0.466 161 2011.042 2011 1 239.834 0.343 281 2011.125 2011 2 239.337 0.442 125 2011.208 2011 3 238.883 0.366 329 2011.292 2011 4 238.599 0.407 314 2011.375 2011 5 238.756 0.410 143 2011.458 2011 6 NaN NaN 0 2011.542 2011 7 237.714 0.306 286 2011.625 2011 8 237.007 0.338 318 2011.708 2011 9 237.450 0.402 307 2011.792 2011 10 237.966 0.331 312 2011.875 2011 11 238.264 0.329 298 2011.958 2011 12 238.118 0.379 77 2012.042 2012 1 238.097 0.471 175 2012.125 2012 2 238.344 0.444 202 2012.208 2012 3 237.701 0.463 302 2012.292 2012 4 237.150 0.384 188 2012.375 2012 5 236.405 0.440 305 2012.458 2012 6 235.758 0.291 138 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 9 233.478 0.335 49 2013.792 2013 10 234.228 0.457 295 2013.875 2013 11 234.461 0.379 213 2013.958 2013 12 234.454 0.361 65 2014.042 2014 1 234.201 0.362 214 2014.125 2014 2 233.856 0.393 261 2014.208 2014 3 233.855 0.486 299 2014.292 2014 4 233.714 0.286 97 2014.375 2014 5 234.394 0.290 208 2014.458 2014 6 234.636 0.268 311 2014.542 2014 7 234.502 0.299 284 2014.625 2014 8 234.315 0.296 251 2014.708 2014 9 234.064 0.279 308 2014.792 2014 10 234.049 0.320 212 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 4 231.290 0.281 118 2016.375 2016 5 231.327 0.250 229 2016.458 2016 6 231.468 0.391 164 2016.542 2016 7 231.153 0.321 183 2016.625 2016 8 230.798 0.326 301 2016.708 2016 9 230.372 0.289 244 2016.792 2016 10 231.253 0.420 156 2016.875 2016 11 231.392 0.309 157 2016.958 2016 12 231.522 0.365 105 2017.042 2017 1 231.098 0.303 218 2017.125 2017 2 230.476 0.332 189 2017.208 2017 3 230.020 0.306 209 2017.292 2017 4 229.722 0.250 164 2017.375 2017 5 230.074 0.264 212 2017.458 2017 6 229.963 0.241 203 2017.542 2017 7 229.818 0.206 63 2017.625 2017 8 229.627 0.221 217 2017.708 2017 9 229.742 0.246 193 2017.792 2017 10 230.116 0.210 229 2017.875 2017 11 230.162 0.202 176 2017.958 2017 12 230.102 0.235 176 2018.042 2018 1 230.003 0.197 105 2018.125 2018 2 229.822 0.200 198 2018.208 2018 3 229.688 0.206 196 2018.292 2018 4 229.561 0.170 193 2018.375 2018 5 229.489 0.205 267 2018.458 2018 6 229.288 0.261 220 2018.542 2018 7 228.878 0.214 259 2018.625 2018 8 228.476 0.304 184 2018.708 2018 9 228.445 0.202 185 2018.792 2018 10 228.812 0.281 218 2018.875 2018 11 229.341 0.256 153 2018.958 2018 12 229.385 0.236 220 2019.042 2019 1 229.177 0.218 219 2019.125 2019 2 228.943 0.246 207 2019.208 2019 3 228.591 0.261 209 2019.292 2019 4 228.377 0.227 191 2019.375 2019 5 228.308 0.226 220 2019.458 2019 6 227.962 0.261 135 2019.542 2019 7 227.197 0.295 166 2019.625 2019 8 226.726 0.310 165 2019.708 2019 9 226.534 0.249 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 2 226.089 0.211 14 2020.208 2020 3 226.087 0.308 99 2020.292 2020 4 226.018 0.220 162 2020.375 2020 5 225.775 0.297 214 2020.458 2020 6 225.537 0.259 120 2020.542 2020 7 224.761 0.352 62 2020.625 2020 8 224.308 0.359 157 2020.708 2020 9 224.215 0.295 180 2020.792 2020 10 224.296 0.260 297 2020.875 2020 11 224.361 0.352 275 2020.958 2020 12 224.531 0.304 244 2021.042 2021 1 224.128 0.310 238 2021.125 2021 2 223.925 0.375 213 2021.208 2021 3 223.847 0.321 303 2021.292 2021 4 223.459 0.290 260 2021.375 2021 5 223.244 0.301 296 2021.458 2021 6 222.923 0.304 262 2021.542 2021 7 222.280 0.360 274 2021.625 2021 8 221.722 0.344 302 2021.708 2021 9 221.394 0.368 294 2021.792 2021 10 221.846 0.317 270 2021.875 2021 11 222.009 0.477 264 2021.958 2021 12 222.093 0.499 264 2022.042 2022 1 221.679 0.613 275 2022.125 2022 2 221.386 0.377 34 2022.208 2022 3 221.337 0.270 270 2022.292 2022 4 221.177 0.246 235 2022.375 2022 5 220.865 0.263 259 2022.458 2022 6 220.505 0.227 60 2022.542 2022 7 NaN NaN 0 2022.625 2022 8 NaN NaN 0 2022.708 2022 9 219.590 0.349 60 2022.792 2022 10 219.481 0.396 113 2022.875 2022 11 219.744 0.336 44 2022.958 2022 12 218.990 0.485 224 2023.042 2023 1 218.737 0.358 131 2023.125 2023 2 218.653 0.319 283 2023.208 2023 3 218.574 0.320 314 2023.292 2023 4 218.372 0.374 150 2023.375 2023 5 218.130 0.349 122 2023.458 2023 6 217.640 0.371 294 2023.542 2023 7 217.090 0.329 282 2023.625 2023 8 216.584 0.333 308 2023.708 2023 9 216.287 0.308 246 2023.792 2023 10 215.831 0.321 261 2023.875 2023 11 216.089 0.345 301 2023.958 2023 12 216.295 0.369 300