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pmip3:cmip6:design:6k:index [2015/03/24 22:24]
masa
pmip3:cmip6:design:6k:index [2016/06/20 17:34] (current)
jypeter Added link to experimental design on PMIP4 web site
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 ====== PMIP-CMIP6 Experimental Design Discussion: Mid-Holocene ====== ====== PMIP-CMIP6 Experimental Design Discussion: Mid-Holocene ======
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 +
 +<note warning>​The PMIP4 experimental design available on the PMIP3 wiki has been **superseded** by the experimental design detailed on the [[https://​pmip4.lsce.ipsl.fr/​doku.php/​exp_design|PMIP4 web site]]</​note>​
  
 <note tip>\\ Please submit your comments in the Discussion section at the end of this page</​note>​ <note tip>\\ Please submit your comments in the Discussion section at the end of this page</​note>​
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 The reference experiment to which the mid-Holocene is compared to is the pre-industrial control, which is part of the DECK. The reference experiment to which the mid-Holocene is compared to is the pre-industrial control, which is part of the DECK.
  
-For the mid-Holocene,​ our proposed experimental set-up for PMIP-CMIP6 is unchanged compared to the PMIP3-CMIP5 set-up:+For the **mid-Holocene**, our proposed experimental set-up for PMIP-CMIP6 is unchanged compared to the [[pmip3:​design:​6k:​final|PMIP3-CMIP5 set-up]]:
  
-The main forcing is the insolation, and the astronomical parameters must be set to:+===== Orbital parameters ===== 
 + 
 +The main forcing is the ** insolation ​**, and the astronomical parameters must be set to:
  
 **eccentricity** = 0.018682 ​ **eccentricity** = 0.018682 ​
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 **perihelion-180°** = 0.87° **perihelion-180°** = 0.87°
  
-**Concentration ​of atmospheric trace gases:**+**Date of vernal equinox** = March 21 at noon 
  
-CO2 280 ppm+**solar constant** ​same as in pre-industrial
  
-CH4 650 ppb+===== Concentration of atmospheric trace gases =====
  
-N2O 270 ppb+**CO<​sub>​2</​sub>​** ​280 ppm
  
-CFC 0+**CH<​sub>​4</​sub>​** ​650 ppb
  
-O3 same as in CMIP5 PI +**N<​sub>​2</​sub>​O** ​270 ppb
  
 +**CFC** = 0
  
-** Topography/bathymetry/​coastlines ​**: unchanged compared to pre-industrial+**O<​sub>​3<​/sub>** = same as in CMIP5 PI 
  
-** Vegetation and land surface:** 
  
-Computed using a dynamical vegetation module,+===== Topography/​bathymetry/​coastlines =====
  
-Or prescribed as in PI, with phenology computed for models with active carbon cycle or prescribed from data+Unchanged compared to pre-industrial 
 + 
 +===== Vegetation and land surface ===== 
 + 
 +  * Computed using a dynamical vegetation module, 
 +  * or prescribed as in PI, with phenology computed for models with active carbon cycle 
 +  * or prescribed from data
  
 No change in ice sheet extent No change in ice sheet extent
  
  
-** Carbon cycle **+===== Carbon cycle =====
  
 Interactive,​ with atmospheric concentration prescribed and ocean and land carbon fluxes diagnosed as recommended in CMIP5 Interactive,​ with atmospheric concentration prescribed and ocean and land carbon fluxes diagnosed as recommended in CMIP5
  
-** Dust cycle ** +===== Dust cycle ===== 
-We invite the modelling groups planning to run simulations with an interactive dust cycle to comment on the most appropriate methodology for their model, in particular as to their ability to use interactive vegetation description.+ 
 +We invite the modelling groups planning to run simulations with an interactive dust cycle to comment on the most appropriate methodology for their model, in particular as to their ability to use an interactive vegetation description.
  
  
pmip3/cmip6/design/6k/index.1427232299.txt.gz · Last modified: 2015/03/24 22:24 by masa