Changes between Version 5 and Version 6 of DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation


Ignore:
Timestamp:
10/26/15 11:32:16 (5 years ago)
Author:
jpolcher
Comment:

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  • DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation

    v5 v6  
    118118Within the Earth2Observe project a paper on the Tier 1 simulations has been submitted by Schellekens et al.. it include the following table : 
    119119 
    120 [[Image(Table3.png, 60%)]] 
     120[[Image(Table3_B.png, 60%)]] 
    121121 
    122122For this dataset it was the Trunk of July 2014 which was run but with the new driver. This meant a more accurate calculation of ETP from the WFDEI_CRU forcing. One immediately notes that evaporation is too high in ORCHIDEE and thus sets us apart from the other models. In order to test how much this is the result of years of accepting too high turbulence in order to compensate for too low ETPs produced the old driver, I re-ran the same code but dividing z0 by 10. The simulation is not yet finished so only the 90s are analysed. 
     
    124124The change in z0 is pictured below : 
    125125 
    126 [[Image(Z0_Diff.png, 60%)]] 
     126[[Image(Z0_Diff_B.png, 60%)]] 
    127127 
    128128This modification leads to a weak but significant reduction of evaporation as pictures below : 
    129129 
    130 [[Image(Evap_Diff.png, 60%)]] 
     130[[Image(Evap_Diff_B.png, 60%)]] 
    131131 
    132132Globally this translate into a reduction of evaporation of about 3.9%.