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pmip3:design:6k:final [2009/11/16 18:21]
pasb
pmip3:design:6k:final [2015/03/02 10:48] (current)
jypeter Removed the sentence about the (non existing) 6k vegetation map
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 <​html><​a name="​page_top_tag">&​nbsp</​a></​html>​ <​html><​a name="​page_top_tag">&​nbsp</​a></​html>​
-//Go to =>// [ [[pmip3:​design:​pi:​final|PI]] ] - [ **6ka** ] - [ [[pmip3:​design:​21k:​final|21ka]] ] - [ [[pmip3:​design:​lm:​final|LM]] ] +//Go to =>// [ [[pmip3:​design:​pi:​final|PI]] ] - [ **6ka** ] - [ [[pmip3:​design:​21k:​final|21ka]] ] - [ [[pmip3:​design:​lm:​final|LM]] ] & Non-CMIP5 exps: [ [[pmip3:​design:​li:​final|LI]] ]
  
 ====== 6ka Experimental Design ====== ====== 6ka Experimental Design ======
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 ^      ^   ​PMIP3/​CMIP5 ​ ^  ^      ^   ​PMIP3/​CMIP5 ​ ^ 
 |  Orbital parameters ​ |  [ **ecc** = 0.018682 ] - [ **obl** = 24.105° ] - [ **peri-180°** = 0.87° ]  |  ​ |  Orbital parameters ​ |  [ **ecc** = 0.018682 ] - [ **obl** = 24.105° ] - [ **peri-180°** = 0.87° ]  |  ​
-|  Date of vernal equinox ​ |  March 21 at noon  ​+|  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 ]  |  +|  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 in CMIP5 PI ]  |  
-|  Aerosols ​ |  Same as PI  |  +|  Aerosols ​ |  Same as in CMIP5 PI  |  
-|  Solar constant ​ |   Same as PI  |+|  Solar constant ​ |   Same as in CMIP5 PI  | 
 |  Vegetation ​    ​| ​ prescribed or interactive as in CMIP5 PI  |  |  Vegetation ​    ​| ​ prescribed or interactive as in CMIP5 PI  | 
-|  Ice sheets ​     |    Same as PI *   | +|  Ice sheets ​     |    Same as in CMIP5 PI *   |  
-|  Topography and coastlines ​ |   Same as PI *  |+|  Topography and coastlines ​ |   Same as in CMIP5 PI *  | 
  
-* Sensitivity experiments will be proposed as part of a working group to test the uncertainties due to the remnant ice-sheet. If you are interested ​to participate ​to this working group contact Pascale Braconnot ​+* Sensitivity experiments will be proposed as part of a working group to test the uncertainties due to the remnant ice-sheet. If you are interested ​in participating ​to this working group contact Pascale Braconnot ​
  
  
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   * prescribed to PI (which means both vegetation types and LAI are prescribed )   * prescribed to PI (which means both vegetation types and LAI are prescribed )
   * Prescribed to PI with interactive LAI (models with interactive carbone cycle, but no vegetation dynamics)   * Prescribed to PI with interactive LAI (models with interactive carbone cycle, but no vegetation dynamics)
-  * Computed by the model (models with dynamic vegetation) ​+  * Computed by the model (models with dynamic vegetation)
  
-There are still questions concerning the possibility to have a 6ka reconstructed vegetation from a combination of model output and data analyses that could be used for sensitivity experiments. Please tell if you are interested by such a map and what would be the best variables (pft?) that should be provided (see comment from B. Otto-Bliesner in the discussion pannel).  ​+==== For Earth System Models with interactive carbon cycle ====
  
-==== For Earth System Models with interactive carbone cycle ====+The simulations should be forced by the prescribed 6ka CO2 concentrations. Please use the same protocol as in CMIP5 to store the diagnostic carbon fluxes and the variables needed for PCMIP (see   
 +[[http://​www.bridge.bris.ac.uk/​projects/​pcmip/​experiments.html|pcmip Project]] and [[http://​cmip-pcmdi.llnl.gov/​cmip5/​|CMIP5]])
  
-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 ==== ==== 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]]) 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]])
 +
 +Check carefully the date of the Vernal equinox, because it has implications when we compare paleo and PI seasonal cycle 
 +
 +==== 6ka  for groups only running PMIP3 experiments ====
 +If you only run PMIP3 experiments we recommand that you follow CMIP5 (see {{:​pmip3:​docs:​taylor_cmip5_dec31.pdf}}) or PMIP2 ([[http://​pmip2.lsce.ipsl.fr|PMIP2 web site]]) for the PI simulation
  
  
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 ^  ^  PMIP3  ^  Alternative solution ​ ^ ^  ^  PMIP3  ^  Alternative solution ​ ^
-| Initial conditions |  Branch off PI after adjustement ​ ​| ​ Same as in PI  |+| Initial conditions |  Branch off PI after adjustment ​ ​| ​ Same as in PI  |
 | Model spin up      |  Same as in PI  |  | | Model spin up      |  Same as in PI  |  |
  
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 [ [[pmip3:​|PMIP3 Wiki Home]] ] - [ [[pmip3:​|PMIP3 Wiki Home]] ] -
 [ [[pmip3:​wiki_help|Help!]] ] - [ [[pmip3:​wiki_help|Help!]] ] -
-[ [[wiki:​syntax|Wiki syntax]] ] <​html><​a name="​page_bottom_tag">&​nbsp</​a></​html>​ - [ [[index#​page_top_tag|Top]] ]+[ [[wiki:​syntax|Wiki syntax]] ] <​html><​a name="​page_bottom_tag">&​nbsp</​a></​html>​ - [ [[final#​page_top_tag|Top]] ]
pmip3/design/6k/final.1258392076.txt.gz · Last modified: 2009/11/16 18:21 by pasb