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~~DISCUSSION~~ | ~~DISCUSSION~~ | ||
- | //Go to =>// [ [[pmip3:design:pi:index|PI]] ] - [ [[pmip3:design:21k:index|21ka]] ] - [ [[pmip3:design:lm:index|LM]] ] | + | <html><a name="page_top_tag"> </a></html> |
- | ====== 6ka Experimental Design ====== | + | //Go to =>// [ [[pmip3:design:pi:index|PI]] ] - [ **6ka** ] - [ [[pmip3:design:21k:index|21ka]] ] - [ [[pmip3:design:lm:index|LM]] ] - [ [[pmip3:design:li:index|LI]] ] - [ [[pmip3:design:plio:index|Plio]] ] |
+ | ====== 6ka Experimental Design ====== | ||
+ | |||
+ | <note warning>**Page in progress**: this is not the final version!\\ \\ Use the [[index#page_bottom_tag|discussion]] panel at the end of the page for comments </note> | ||
===== Boundary conditions ===== | ===== Boundary conditions ===== | ||
+ | |||
+ | ==== Summary of 6ka boundary conditions ==== | ||
+ | |||
+ | |||
+ | ^ ^ PMIP3/CMIP5 ^ Minimum 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 | 1365 W/m<sup>2</sup> | As in PI | | ||
+ | | Vegetation | prescribed or interactive as in CMIP5 PI | | | ||
+ | | Ice sheets | Remnant Laurentide ice-sheet (provided) | Same as PI | | ||
+ | | Topography and coastlines | Modification of Hudson Bay coastlines (provided) | Same as PI | | ||
+ | |||
+ | Please use the [[index#page_bottom_tag|discussion]] panel to **comment** this table! | ||
+ | |||
+ | |||
+ | ==== 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 ([[http://pmip2.lsce.ipsl.fr/synth/biome4.shtml|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]]) | ||
+ | |||
+ | |||
+ | |||
===== 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 | | | ||
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