CSIRO (with the Australian Antarctic Division and ANSTO)

Law Dome ice core 2000-year CO2, CH4, N2O and delta-13C-CO2

Greenhouse gases in air from Law Dome ice cores (DSS, DSS0506, DE08, DE08-2) and firn (DE08-2, DSSW20K), East Antarctica: CO2 (ppm), CH4 (ppb) and N2O (ppb) over the last 2000 years and delta-13C of CO2 (per mil) over the last 1000 years, by core and by gas age, plus smoothing-spline fits and growth rates (CO2 and N2O splines from 154 AD, CH4 from 155 AD, delta-13C from 1020 AD; the CO2 spline ends in 1996). Each gas in the spline sheet has its own year column. Static dataset (CSIRO version 3; data last updated November 2018).

Free to reuse with creditarchivedFetched automatically

Numbers published from it

Carbon dioxide over the last 2,000 years (Law Dome ice cores)

Licence and credit

Licence: CC BY 4.0
What the terms say: “Creative Commons Attribution 4.0 International Licence”
From the producer's terms, checked 2026-10-04; re-checked automatically every week.
Credit we give: Rubino et al., Law Dome Ice Core 2000-Year CO2, CH4, N2O and d13C-CO2, v3, CSIRO, doi:10.25919/5bfe29ff807fb; Rubino et al. (2019), Earth System Science Data 11, 473-492, doi:10.5194/essd-11-473-2019. CC BY 4.0.
Copy of the raw file: Allowed: we keep a public copy of every version we use.
Cite as: Rubino, Mauro; Etheridge, David; Thornton, David; Allison, Colin; Francey, Roger; Langenfelds, Ray; Steele, Paul; Trudinger, Cathy; Spencer, Darren; Curran, Mark; Van Ommen, Tas; & Smith, Andrew (2019): Law Dome Ice Core 2000-Year CO2, CH4, N2O and d13C-CO2. v3. CSIRO. Data Collection. https://doi.org/10.25919/5bfe29ff807fb. Rubino, Mauro; Etheridge, David; Thornton, David; Howden, Russell; Allison, Colin; Francey, Roger; Langenfelds, Ray; Steele, Paul; Trudinger, Cathy; Spencer, Darren; Curran, Mark; van Ommen, Tas; Smith, Andrew. Revised records of atmospheric trace gases CO2, CH4, N2O, and δ13C-CO2 over the last 2000 years from Law Dome, Antarctica. Earth System Science Data. 2019; 11:473-492. https://doi.org/10.5194/essd-11-473-2019

Files

Law_Dome_GHG_2000years.xlsx: sheets ReadMe, CO2byCore, CO2byAge, CH4byCore, CH4byAge, N2ObyCore, N2ObyAge, d13CbyCore, d13CbyAge and "Splines fits" (year AD, spline value and growth rate for each gas).
https://data.csiro.au/dap/ws/v2/collections/63432/data/53592973

Status

Programme: Static science dataset. CSIRO published version 3 of the collection on 4 September 2024 with metadata changes only; the data file dates from November 2018.
Updates: Static (occasional recalibration versions)
Last check: Unchanged since the last fetch (2026-10-05T11:04:11Z)