Citation:

essd-9-363-2017

Name: Continuous record of the atmospheric greenhouse gas methane (CH4), raw data (Version 2)
Published: 2017-06-08
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Related to:

Buizert, Christo; Adrian, Betty; Ahn, Jinho; Albert, Mary; Alley, Richard B; Baggenstos, Daniel; Bauska, Thomas K; Bay, Ryan C; Bencivengo, Brian B; Bentley, Charles R; Brook, Edward J; Chellman, Nathan J; Clow, Gary D; Cole-Dai, Jihong; Conway, Howard; Cravens, Eric; Cuffey, Kurt M; Dunbar, Nelia W; Edwards, Jon S; Fegyveresi, John M; Ferris, David G; Fitzpatrick, Joan J; Fudge, Tyler J; Gibson, Chris J; Gkinis, Vasileios; Goetz, Joshua J; Gregory, Stephanie; Hargreaves, Geoffrey M; Iverson, Nels; Johnson, Jay A; Jones, Tyler R; Kalk, Michael L; Kippenhan, Matthew J; Koffman, Bess G; Kreutz, Karl; Kuhl, Tanner W; Lebar, Donald A; Lee, James E; Marcott, Shaun A; Markle, Bradley R; Maselli, Olivia J; McConnell, Joseph R; McGwire, Kenneth C; Mitchell, Logan E; Mortensen, Nicolai B; Neff, Peter D; Nishiizumi, Kunihiko; Nunn, Richard M; Orsi, Anais J; Pasteris, Daniel R; Pedro, Joel B; Pettit, Erin C; Buford Price, Paul; Priscu, John C; Rhodes, Rachael H; Rosen, Julia L; Schauer, Andrew J; Schoenemann, Spruce W; Sendelbach, Paul J; Severinghaus, Jeffrey P; Shturmakov, Alexander J; Sigl, Michael; Slawny, Kristina R; Souney, Joseph M; Sowers, Todd A; Spencer, Matthew K; Steig, Eric J; Taylor, Kendrick C; Twickler, Mark S; Vaughn, Bruce H; Voigt, Donald E; Waddington, Edwin D; Welten, Kees C; Wendricks, Anthony W; White, James W C; Winstrup, Mai; Wong, Gifford J; Woodruff, Thomas E (2015): Precise interpolar phasing of abrupt climate change during the last ice age. Nature, 520(7549), 661-665, https://doi.org/10.1038/nature14401

Buizert, Christo; Cuffey, Kurt M; Severinghaus, Jeffrey P; Baggenstos, Daniel; Fudge, Tyler J; Steig, Eric J; Markle, Bradley R; Winstrup, Mai; Rhodes, Rachael H; Brook, Edward J; Sowers, Todd A; Clow, Gary D; Cheng, Hai; Edwards, Ross L; Sigl, Michael; McConnell, Joseph R; Taylor, Kendrick C (2015): The WAIS Divide deep ice core WD2014 chronology - Part 1: Methane synchronization (68–31 ka BP) and the gas age–ice age difference. Climate of the Past, 11(2), 153-173, https://doi.org/10.5194/cp-11-153-2015

Dlugokencky, Edward J; Lang, Patricia M; Mund, John; Crotwell, Andy; Crotwell, Molly; Thoning, Kirk W: Atmospheric Methane Dry Air Mole Fractions from the NOAA ESRL Carbon Cycle Cooperative Global Air Sampling Network, 1983-2015. Version: 2016-07-07 - ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ - ftp://aftp.cmdl.noaa.gov/data/trace_gases/ch4/flask/surface/ch4_spo_surface-flask_1_ccgg_month.txt, hdl:10013/epic.51033.d001

Loulergue, Laetitia; Schilt, Adrian; Spahni, Renato; Masson-Delmotte, Valerie; Blunier, Thomas; Lemieux, Bénédicte; Barnola, Jean-Marc; Raynaud, Dominique; Stocker, Thomas F; Chappellaz, Jérôme A (2008): Orbital and millennial-scale features of atmospheric CH4 over the past 800,000 years. Nature, 453(7193), 383-386, https://doi.org/10.1038/nature06950

MacFarling Meure, C; Etheridge, David; Trudinger, Cathy M; Steele, P; Langenfelds, Ray L; van Ommen, T; Smith, Andrew; Elkins, J (2006): Law Dome CO2, CH4 and N2O ice core records extended to 2000 years BP. Geophysical Research Letters, 33(14), 4 pp, https://doi.org/10.1029/2006GL026152

Marcott, Shaun A; Bauska, Thomas K; Buizert, Christo; Steig, Eric J; Rosen, Julia L; Cuffey, Kurt M; Fudge, Tyler J; Severinghaus, Jeffrey P; Ahn, Jinho; Kalk, Michael L; McConnell, Joseph R; Sowers, Todd A; Taylor, Kendrick C; White, James W C; Brook, Edward J (2014): Centennial-scale changes in the global carbon cycle during the last deglaciation. Nature, 514(7524), 616-619, https://doi.org/10.1038/nature13799

Mitchell, Logan E; Brook, Edward J; Lee, James E; Buizert, Christo; Sowers, Todd A (2013): Constraints on the Late Holocene Anthropogenic Contribution to the Atmospheric Methane Budget. Science, 342(6161), 964-966, https://doi.org/10.1126/science.1238920

Mitchell, Logan E; Brook, Edward J; Sowers, Todd A; McConnell, Joseph R; Taylor, Kendrick C (2011): Multidecadal variability of atmospheric methane, 1000–1800 C.E. Journal of Geophysical Research, 116(G2), https://doi.org/10.1029/2010JG001441

Rhodes, Rachael H; Brook, Edward J; Blunier, Thomas; McConnell, Joseph R; Romanini, Daniele (2017): West Antarctic Ice Sheet (WAIS) Divide ice core ultra-high resolution continuous CH4 measurements 67.2-9.8 ka BP. PANGAEA, https://doi.org/10.1594/PANGAEA.875982

Rhodes, Rachael H; Brook, Edward J; Chiang, John C H; Blunier, Thomas; Maselli, Olivia J; McConnell, Joseph R; Romanini, Daniele; Severinghaus, Jeffrey P (2015): Enhanced tropical methane production in response to iceberg discharge in the North Atlantic. Science, 348(6238), 1016-1019, https://doi.org/10.1126/science.1262005

Sigl, Michael; Fudge, Tyler J; Winstrup, Mai; Cole-Dai, Jihong; Ferris, David G; McConnell, Joseph R; Taylor, Kendrick C; Welten, Kees C; Woodruff, Thomas E; Adolphi, Florian; Bisiaux, Marion M; Brook, Edward J; Buizert, Christo; Caffee, Marc W; Dunbar, Nelia W; Edwards, Ross L; Geng, Lei; Iverson, Nels; Koffman, Bess G; Layman, Lawrence; Maselli, Olivia J; McGwire, Kenneth C; Muscheler, Raimund; Nishiizumi, Kunihiko; Pasteris, Daniel R; Rhodes, Rachael H; Sowers, Todd A (2016): The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP). Climate of the Past, 12(3), 769-786, https://doi.org/10.5194/cp-12-769-2016

Previous version:

Köhler, Peter; Nehrbass-Ahles, Christoph; Schmitt, Jochen; Stocker, Thomas F; Fischer, Hubertus (2017): Continuous record of the atmospheric greenhouse gas methane (CH4), raw data (Version 1). PANGAEA, https://doi.org/10.1594/PANGAEA.871263

Coverage:

Median Latitude: -78.372888 * Median Longitude: -16.679112 * South-bound Latitude: -90.000000 * West-bound Longitude: -112.086000 * North-bound Latitude: -66.733330 * East-bound Longitude: 123.350000

Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00

Minimum Elevation: 1390.0 m * Maximum Elevation: 5927.0 m

Event(s):

EDC (EPICA Dome C) * Latitude: -75.100000 * Longitude: 123.350000 * Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00 * Elevation: 3233.0 m * Recovery: 3300 m * Location: Dome C, Antarctica * Campaign: * Method/Device: Ice drill (ICEDRILL) * Comment: Drill site is 56 km from the site of a previous Dome C core that provided records extending into the last glacial period, and 560 km from the site of the Vostok cores. The completion of the Dome C core was delayed when the first drilling became stuck at 788 m in 1999 (EDC96).

Law_Dome * Latitude: -66.733330 * Longitude: 112.833330 * Elevation: 1390.0 m * Location: Antarctica * Method/Device: Ice drill (ICEDRILL)

South_Pole * Latitude: -90.000000 * Longitude: 0.000000 * Elevation: 2835.0 m * Location: South Pole * Campaign: * Basis: Sampling/drilling ice * Method/Device: Ice drill (ICEDRILL)

Comment:

Final file of data selection with n=30214 entries. Revised version: 2017-06-08. The data with event label "WDC_continuous" are used here as published on the NOAA data base (hdl:10013/epic.51034.d001). They contain WDC CH4 data measured during continuous flow analysis which have already been post-processed to a spline with constant temporal resolution of 2 years, including the support from some discrete WDC data points to improve the data set, whenever larger gaps in the continuous record appeared.

The data with the event label "WDC_discrete_OSU" contain WDC CH4 data which have been measured from discrete samples on the Oregon State University (OSU). The data with the event label "WDC_discrete_PSU_adjusted" contain WDC CH4 data which have been measured from discrete samples on the Pennsylvania State University (PSU), which have been adjusted by +9.9 ppb to account for interlab offsets between OSU and PSU as described in the paper.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Köhler, Peter
2	AGE	Age	ka BP	Köhler, Peter	Geocode
3	Methane, dry-air mole fraction	CH4	nmol/mol	Köhler, Peter	nmol/mol = ppb
4	Methane, dry-air mole fraction, standard deviation	CH4 std dev	±	Köhler, Peter	1-sigma uncertainty (ppb)
5	Comment	Comment		Köhler, Peter
6	Reference/source	Reference		Köhler, Peter

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

120008 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)