Differences

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--- pmip3:cmip6:design:6k:index [2015/03/24 21:17]
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+++ pmip3:cmip6:design:6k:index [2015/03/24 21:29]
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@@ Line 11: / Line 11: @@
 For the mid-Holocene, our proposed experimental set-up for PMIP-CMIP6 is unchanged compared to the PMIP3-CMIP5 set-up:
-The main forcing is the insolation, and the astronomical parameters must be set to:
+The main forcing is the ** insolation **, and the astronomical parameters must be set to:
 **eccentricity** = 0.018682
 **obliquity** = 24.105°
 **perihelion-180°** = 0.87°
+**solar constant** = same as in pre-industrial
 **Concentration of atmospheric trace gases:**
 CO2 = 280 ppm
 CH4 = 650 ppb
 N2O = 270 ppb
 CFC = 0
 O3 = same as in CMIP5 PI
+** Topography/bathymetry/coastlines **: 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
+** Carbon cycle **
+Interactive, with atmospheric concentration prescribed and ocean and land carbon fluxes diagnosed as recommended in CMIP5
+** 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 a interactive vegetation description.

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