exp_design:lig127

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exp_design:lig127 [2016/05/05 21:29]
masa created 		exp_design:lig127 [2020/04/07 12:38]
jypeter [Associated publication] Added link to supplement
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 ====== Design for the last Interglacial (at 127 ky BP) run====== ====== Design for the last Interglacial (at 127 ky BP) run======
  
-===== Associated publication =====+<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.
  
-Otto-Bliesner et al, in prep+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.
  
 +Get in touch with the following people if you have questions:
 +
 +
 +| [[ottobli@ucar.edu|Bette Otto-Bliesner]] | Scientific questions |
 +| [[Jean-Yves.Peterschmitt@lsce.ipsl.fr|Jean-Yves Peterschmitt]] | Technical questions or missing data|
 +</WRAP>
 +
 +===== Associated publication =====
 +
 +**The PMIP4 contribution to CMIP6 – Part 2: Two interglacials, scientific objective and experimental design for Holocene and Last Interglacial simulations**, Otto-Bliesner, B. L., Braconnot, P., Harrison, S. P., Lunt, D. J., Abe-Ouchi, A., Albani, S., Bartlein, P. J., Capron, E., Carlson, A. E., Dutton, A., Fischer, H., Goelzer, H., Govin, A., Haywood, A., Joos, F., LeGrande, A. N., Lipscomb, W. H., Lohmann, G., Mahowald, N., Nehrbass-Ahles, C., Pausata, F. S. R., Peterschmitt, J.-Y., Phipps, S. J., Renssen, H., and Zhang, Q., Geosci. Model Dev., 10, 3979-4003, [[https://doi.org/10.5194/gmd-10-3979-2017|doi:10.5194/gmd-10-3979-2017]], 2017.\\ \\ [[https://www.geosci-model-dev.net/10/3979/2017/gmd-10-3979-2017-supplement.zip|Supplement (Otto-Bliesner et al, GMD, 2017)]]
 ===== Specifications ===== ===== Specifications =====
  
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 ^      ^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  | 
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 | 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. |
 +
 +===== Collaboration =====
 +
 +  * 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.
 +
 +  * 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
 +
 +===== Sensitivity experiments =====
 +
 +==== Sensitivity to Prescribed Vegetation ====
 +
 +==== Sensitivity to Prescribed Ice Sheets ====
 +
 +==== Simulation to explore the effects of the H11 event ====
  
  
  • exp_design/lig127.txt
  • Last modified: 2020/04/07 12:38
  • by jypeter