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exp_design:mh [2016/05/04 09:26]
jypeter
exp_design:mh [2020/04/07 12:34]
jypeter [Associated publication] Added link to supplement
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-====== Design for the  mid-Holocene run======+====== Design for the mid-Holocene run======
  
-PMIP4-CMIP6 name of the experiment: <wrap em>midHolocene</wrap>+<WRAP info round center 60%> 
 +You will find on this page information about the experiment design for the PMIP4 [[.:mh|mid-Holocene]] experiment.
  
-Associated publication: 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: 
 + 
 + 
 +| [[Pascale.Braconnot@lsce.ipsl.fr|Pascale Braconnot]] | 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 =====
  
  
 ^      ^PMIP4-CMIP6 specifications ^  ^      ^PMIP4-CMIP6 specifications ^ 
 +| PMIP4-CMIP6 name | <wrap em>midHolocene</wrap> |
 | Astronomical parameters  | **eccentricity** = 0.018682 \\ **obliquity** = 24.105° \\  **perihelion-180°** = 0.87°  \\  **Date of vernal equinox**  :  March 21 at noon  |   | Astronomical parameters  | **eccentricity** = 0.018682 \\ **obliquity** = 24.105° \\  **perihelion-180°** = 0.87°  \\  **Date of vernal equinox**  :  March 21 at noon  |  
-| Trace gases  | **CO<sub>2</sub>** = 264.36 ppm \\ **CH<sub>4</sub>** = 584.93 ppb \\ **N<sub>2</sub>O** = 258.56 ppb \\ **CFC** = 0 \\ **O<sub>3</sub>** = same as in CMIP6 piControl  |  +| Trace gases  | **CO<sub>2</sub>** = 264.ppm \\ **CH<sub>4</sub>** = 597 ppb \\ **N<sub>2</sub>O** = 262 ppb \\ **CFC** = 0 \\ **O<sub>3</sub>** = same as in CMIP6 piControl  |  
-Aerosols   Same as in CMIP5 PI  |  +Solar activity | Same as in CMIP6 piControl (TSI = 1360.747 W.m-2) |  
-Solar constant    Same as in CMIP5 PI  |  +Ice sheets      | Same as in CMIP6 piControl  |  
-Vegetation      prescribed or interactive as in CMIP5 PI  |  +Topography and coastlines  | Same as in CMIP6 piControl  |  
-Ice sheets         Same as in CMIP5 PI *   |  +Volcanic activity | Same as in CMIP6 piControl  
-Topography and coastlines    Same as in CMIP5 PI *  +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 mid-Holocene 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 **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 ====
 + 
  • exp_design/mh.txt
  • Last modified: 2020/04/07 12:38
  • by jypeter