data:gases [PMIP4]

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====== PMIP4 gases data ======

===== CO2 =====

^ Experiment ^ Value (ppm) ^
| midHolocene | 264.4 |
| lgm | 190 |
| past1000 | Time varying\\ Meinshausen et al., [[http://www.geosci-model-dev.net/special_issue590.html|CMIP6 GMD special issue]] |
| lig127k | 275 |
| midPliocene-eoi400 | 400 |
| LDv1-LGMspin | //Same as lgm// |
| LDv1-transpin\\ LDv1 | Transient, as per [[exp_design:degla#References_cited|Bereiter et al. (2015)]]\\ [ [[ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/antarctica2015co2composite.txt|Bereiter et al data access]] ] (md5sum = ''c54a033d8cbf588bc2b95d3b92ff9b1c'') |
| PDGv1-PGMspin | 191 |
| PDGv1 | **CO<sub>2</sub>** = Transient, as per [[exp_design:degla_t2#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] |


===== CH4 =====

^ Experiment ^ Value (ppb) ^
| midHolocene | 597 |
| lgm | 375 |
| past1000 | Time varying\\ Meinshausen et al., [[http://www.geosci-model-dev.net/special_issue590.html|CMIP6 GMD special issue]] |
| lig127k | 685 |
| midPliocene-eoi400 | //Same as in CMIP6 piControl// |
| LDv1-LGMspin | //Same as lgm// |
| LDv1-transpin\\ LDv1 | Transient, as per Loulergue et al. (2008)\\ **Get reference and data below!** |
| PDGv1-PGMspin | 385 |
| PDGv1 | Transient, as per [[exp_design:degla_t2#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] |


==== Loulergue et al CH4 data ====

  * Reference: Loulergue, L., Schilt, A., Spahni, R., Masson-Delmotte, V., Blunier, T., Lemieux, B., Barnola, J.-M., Raynaud, D., Stocker, T. F. and Chappellaz, J.: Orbital and millennial-scale features of atmospheric CH4 over the past 800,000 years, Nature, 453(7193), 383–386, [[http://www.nature.com/nature/journal/v453/n7193/full/nature06950.html|doi:10.1038/nature06950]], 2008.
  * Data: {{ :data:pmip4_deglac_ch4_loulergue_et_al_2008_aicc2012.txt}}
  * History:\\ July 13th 2016: data uploaded to PMIP4 site, md5sum = ''338187b58a48d8cb5496f0d7c98528bb''

===== N20 =====

^ Experiment ^ Value (ppb) ^
| midHolocene | 262 |
| lgm | 200 |
| past1000 | Time varying\\ Meinshausen et al., [[http://www.geosci-model-dev.net/special_issue590.html|CMIP6 GMD special issue]] |
| lig127k | 255 |
| midPliocene-eoi400 | //Same as in CMIP6 piControl// |
| LDv1-LGMspin | //Same as lgm// |
| LDv1-transpin\\ LDv1 | Transient, as per Schilt et al. (2010)\\ **Get reference and data below!** |
| PDGv1-PGMspin | 201 |
| PDGv1 | Linear increase from 201 ppb at 140 ka to 218.74 ppb at 134.5 ka\\ then transient, as per [[exp_design:degla_t2#References_cited| the spline of Koehler et al. (2017)]]: [ [[https://doi.pangaea.de/10.1594/PANGAEA.871273|Access to data]] ] |


==== Schilt et al N20 data ====

  * Reference: Schilt, A., Baumgartner, M., Schwander, J., Buiron, D., Capron, E., Chappellaz, J., Loulergue, L., Schüpbach, S., Spahni, R., Fischer, H. and Stocker, T. F.: Atmospheric nitrous oxide during the last 140,000 years, Earth Planet. Sci. Lett., 300(1–2), 33–43, [[http://www.sciencedirect.com/science/article/pii/S0012821X10006023|doi:10.1016/j.epsl.2010.09.027]], 2010.
  * Data: {{ :data:pmip4_deglac_n20_schilt_et_al_2010_aicc2012.txt}}
  * History:\\ July 13th 2016: data uploaded to PMIP4 site, md5sum = ''a99f2d791256774f3296871aaf4ee9bd''

===== CFC =====

^ Experiment ^ Value ^
| midHolocene | 0 |
| lgm | 0 |
| past1000 | 0  |
| lig127k | 0 |
| midPliocene-eoi400 | //Same as in CMIP6 piControl// |
| LDv1-LGMspin\\ LDv1-transpin\\ LDv1 | \\ //Same as lgm// |
| PDGv1-PGMspin\\ PDGv1 | 0 |

===== O3 =====

^ Experiment ^ Value ^
| midHolocene\\ lgm\\ lig127k\\ midPliocene-eoi400 \\ LDv1-LGMspin\\ LDv1-transpin\\ LDv1\\ PDGv1-PGMspin\\ PDGv1 | \\ \\ \\ //Same as in CMIP6 piControl// |
| past1000 | For models without interactive ozone chemistry, we suggest that O3 modulation is derived in a similar way from the modulation of the UV part of the solar spectrum as in the historical simulations (c.f. [[http://www.geosci-model-dev-discuss.net/gmd-2016-91/|Matthes et al., CMIP6 GMD special issue 2016]]) |