Köhler, Peter; Nehrbass-Ahles, Christoph; Schmitt, Jochen; Stocker, Thomas F; Fischer, Hubertus (2017): Continuous record of the atmospheric greenhouse gas methane (CH4), pre-processed data (Version 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.871267, In supplement to: Köhler, P et al. (2017): A 156 kyr smoothed history of the atmospheric greenhouse gases CO2, CH4, and N2O and their radiative forcing. Earth System Science Data, 9(1), 363-387, https://doi.org/10.5194/essd-9-363-2017
Always quote citation above when using data! You can download the citation in several formats below.
Alert New version:
Köhler, Peter; Nehrbass-Ahles, Christoph; Schmitt, Jochen; Stocker, Thomas F; Fischer, Hubertus (2017): Continuous record of the atmospheric greenhouse gas methane (CH4), pre-processed data (Version 2). PANGAEA, https://doi.org/10.1594/PANGAEA.876008
Related to:
Köhler, Peter; Nehrbass-Ahles, Christoph; Schmitt, Jochen; Stocker, Thomas F; Fischer, Hubertus (2017): Continuous records of the atmospheric greenhouse gases CO2, CH4, and N2O and their radiative forcing since the penultimate glacial maximum. Earth System Science Data Discussions, https://doi.org/10.5194/essd-2017-6
Comment:
Final file used for spline with n=4145 entries (37 duplicates recalculated). file goes back until 799472 BP, but only those younger than 156.3 kyr BP are taken for the spline to have a time series that goes as far back as the CO2 time series.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Köhler, Peter | Geocode | |
| 2 | Methane, dry-air mole fraction | CH4 | nmol/mol | Köhler, Peter | nmol/mol = ppb | |
| 3 | Methane, dry-air mole fraction, standard deviation | CH4 std dev | ± | Köhler, Peter | 1-sigma uncertainty (ppb) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8290 data points
Download Data
View dataset as HTML (shows only first 2000 rows)