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exp_design:lig127 [2016/05/05 21:29] masa created |
exp_design:lig127 [2017/02/01 14:49] jypeter [Associated publication] Updated paper reference |
====== Design for the last Interglacial (at 127 ky BP) run====== | ====== Design for the last Interglacial (at 127 ky BP) run====== |
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| <WRAP info round center 60%> |
| You will find on this page information about the experiment design for the PMIP4 [[.:lig127|last Interglacial (at 127 ky BP)]] experiment. |
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| Please make sure to read the [[#Associated_publication|Associated publication]] before setting up your experiments or using the output data, and read any //how-to// sections associated with specific boundary conditions. |
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| Get in touch with the following people if you have questions: |
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| | [[ottobli@ucar.edu|Bette Otto-Bliesner]] | Scientific questions | |
| | [[Jean-Yves.Peterschmitt@lsce.ipsl.fr|Jean-Yves Peterschmitt]] | Technical questions or missing data| |
| </WRAP> |
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===== Associated publication ===== | ===== Associated publication ===== |
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Otto-Bliesner et al, in prep | **The PMIP4 contribution to CMIP6 – Part 2: Two Interglacials, Scientific Objective and Experimental Design for Holocene and Last Interglacial Simulations**, Otto-Bliesner et al, GMD, under review [[https://dx.doi.org/10.5194/gmd-2016-279|doi:10.5194/gmd-2016-279]] |
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===== Specifications ===== | ===== Specifications ===== |
^ ^PMIP4-CMIP6 specifications ^ | ^ ^PMIP4-CMIP6 specifications ^ |
| PMIP4-CMIP6 name | <wrap em>lig127k</wrap> | | | PMIP4-CMIP6 name | <wrap em>lig127k</wrap> | |
| Astronomical parameters | **eccentricity** = \\ **obliquity** = ° \\ **perihelion-180°** = ° \\ **Date of vernal equinox** : March 21 at noon | | | Astronomical parameters | **eccentricity** = 0.039378 \\ **obliquity** = 24.04° \\ **perihelion-180°** = 275.41° \\ **Date of vernal equinox** : March 21 at noon | |
| Trace gases | **CO<sub>2</sub>** = 287 ppm \\ **CH<sub>4</sub>** = 724 ppb \\ **N<sub>2</sub>O** = 262 ppb \\ **CFC** = 0 \\ **O<sub>3</sub>** = same as in CMIP6 piControl | | | Trace gases | **CO<sub>2</sub>** = 275 ppm \\ **CH<sub>4</sub>** = 685 ppb \\ **N<sub>2</sub>O** = 255 ppb \\ **CFC** = 0 \\ **O<sub>3</sub>** = same as in CMIP6 piControl | |
| Solar activity | Same as in CMIP6 piControl | | | Solar activity | Same as in CMIP6 piControl (TSI = 1360.747 W.m-2) | |
| Ice sheets | Same as in CMIP6 piControl | | | Ice sheets | Same as in CMIP6 piControl | |
| Topography and coastlines | Same as in CMIP6 piControl | | | Topography and coastlines | Same as in CMIP6 piControl | |
| Aerosols | Modified sources, atmospheric concentrations or radiative forcing, depending on model complexity and model configuration used for DECK and historical experiments \\ cf. documenting papers: Otto-Bliesner et al, in prep and Kageyama et al, subm. \\ [[:data:aerosols|Access to data]]| | | Aerosols | Modified sources, atmospheric concentrations or radiative forcing, depending on model complexity and model configuration used for DECK and historical experiments \\ cf. documenting papers: Otto-Bliesner et al, in prep and Kageyama et al, subm. \\ [[:data:aerosols|Access to data]]| |
| Vegetation | Depending on model complexity and model configuration used for DECK and historical experiments: \\ Interactive vegetation **or** Interactive carbon cycle (LAI) **or** Prescribed to present-day values or lig127k values computed from off-line vegetation model \\ The methodology to represent vegetation should be the same as for the CMIP6 piControl simulation \\ cf. documenting papers: Otto-Bliesner et al, in prep and Kageyama et al, subm. | | | Vegetation | Depending on model complexity and model configuration used for DECK and historical experiments: \\ Interactive vegetation **or** Interactive carbon cycle (LAI) **or** Prescribed to present-day values or lig127k values computed from off-line vegetation model \\ The methodology to represent vegetation should be the same as for the CMIP6 piControl simulation \\ cf. documenting papers: Otto-Bliesner et al, in prep and Kageyama et al, subm. | |
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| ===== Collaboration ===== |
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| * The PMIP4-CMIP6 **lig127k** simulation is being coordinated with [[http://www.climate-cryosphere.org/activities/targeted/ismip6|ISMIP6]]. The output from the lig127k simulation will be used by ISMIP6 to force standalone ice sheet experiments (//lastInterglacialforcedism//). This will increase our understanding of the sensitivity of the ice sheets, complementing the suite of standalone ISMIP6 ice sheet experiments. |
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| * The PMIP4-CMIP6 **midHolocene** and **lig127k** simulations are also expected to be relevant to analyses in [[http://www.climate-cryosphere.org/activities/groups/seaicemodeling/simip|SIMIP]]’s assessment of the role of sea-ice changes in climate changes and [[https://cmip.ucar.edu/aer-chem-mip|AerChemMIP]]’s assessment of the role of dust |
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| ===== Sensitivity experiments ===== |
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| ==== Sensitivity to Prescribed Vegetation ==== |
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| ==== Sensitivity to Prescribed Ice Sheets ==== |
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| ==== Simulation to explore the effects of the H11 event ==== |
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