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pmip3:design:6k:index [2009/02/05 18:50] pasb |
pmip3:design:6k:index [2009/02/10 16:27] jypeter Cosmetic changes |
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//Go to =>// [ [[pmip3:design:pi:index|PI]] ] - [ [[pmip3:design:21k:index|21ka]] ] - [ [[pmip3:design:lm:index|LM]] ] | //Go to =>// [ [[pmip3:design:pi:index|PI]] ] - [ [[pmip3:design:21k:index|21ka]] ] - [ [[pmip3:design:lm:index|LM]] ] | ||
- | ====== 6ka Experimental Design ====== | ||
+ | ====== 6ka Experimental Design ====== | ||
+ | |||
+ | <note warning>**Page in progress**: this is not the final version\\ \\ Use the discussion panel below for comments</note> | ||
===== Boundary conditions ===== | ===== Boundary conditions ===== | ||
- | **Summary of 6ka boundary conditions ** | + | ==== Summary of 6ka boundary conditions ==== |
+ | |||
+ | |||
+ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
+ | | Orbital parameters | **ecc** = 0.018682\\ **obl** = 24.105°\\ **peri-180°** = 0.87° | | | ||
+ | | Date of vernal equinox | March 21 at noon | | | ||
+ | | Trace gases | **CO<sub>2</sub>** = 280 ppm\\ **CH<sub>4</sub>** = 650 ppb\\ **N<sub>2</sub>O** = 270 ppb\\ **CFC** = 0\\ **O<sub>3</sub>** = same as PI | | | ||
+ | | Aerosols | Same as PI | | | ||
+ | | | | | | ||
+ | | Solar constant | 1365W/m<sup>2</sup> | As in PI | | ||
+ | | Vegetation | Interactive | See specific note below | | ||
+ | | Ice sheets | Remnant Laurentide ice-sheet (provided) | Same as PI | | ||
+ | | Topography and coastlines | Modification of Hudson Bay coastlines (provided) | Same as PI | | ||
+ | |||
+ | |||
+ | ==== Vegetation ==== | ||
+ | |||
+ | Depending on the complexity of the model used the vegetation will be either \\ | ||
+ | |||
+ | - computed by the model \\ | ||
+ | - prescribed to PI (some ESM may only compute vegetation phenology and carbon cycle)\\ | ||
+ | - prescribed to 6ka vegetation reconstructed from a combination of model output and data analyses (please use the map provided here) \\ | ||
+ | - Obtained from asynchronous coupling with a DVGM (Biome 4 model provided) | ||
+ | |||
+ | |||
+ | ==== For Earth System Models with interactive carbone cycle ==== | ||
+ | |||
+ | The simulations are forced by CO2 concentrations. Please use the same protocol as in CMIP5 to store the carbone fluxes and the variables needed for PCMIP (see list here) | ||
+ | |||
+ | ==== Insolation ==== | ||
+ | |||
+ | Note that insolation should follows PMIP requirements. Please check it carefully using the following tables ([[http://pmip2.lsce.ipsl.fr/design/tables/inso_tables_6k.shtml|6ka BP insolation tables]]) | ||
+ | |||
+ | |||
- | ^ ^ PMIP3 ^ Alternative solution ^ | ||
- | | Orbital parameters | ecc= , obl= , peri= | | | ||
- | | date of the Vernal equinox | March 21 at Noon | | | ||
- | | Trace Gazes | | | | ||
===== Initial conditions ===== | ===== Initial conditions ===== | ||
+ | |||
+ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
+ | | Initial conditions | Branch off PI after adjustement | Same as in PI | | ||
+ | | Model spin up | Same as in PI | | | ||