Changes between Version 6 and Version 7 of DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation


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Timestamp:
2016-01-14T09:29:16+01:00 (8 years ago)
Author:
fwang
Comment:

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  • DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation

    v6 v7  
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     139== Results added on 12 Jan. 2015 by Fuxing WANG == 
     1401. Regarding the question of the u* in SU's formula, sensitivity tests were done with LMDZOR (nudged):  [[BR]] 
     141 (1) u* = [ c1 - c2 * exp(-c3 * cdrag_foliage * lai(:,jv)) ] * wind;  (2) u* from lmdz. 
    139142 
     143 The simulations are:[[BR]] 
     144 SU01Z0MH1: replace z0m and z0h by SU formula, u* by (1) method [[BR]] 
     145 SU01Z0MH2: same as SU01Z0MH1, but u* by (2) method [[BR]] 
     146 
     147 Results are shown in fig. z0mh_s01_mh_jan.pdf  [[BR]] 
     148 https://forge.ipsl.jussieu.fr/orchidee/attachment/wiki/DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation/z0mh_s01_mh_january.pdf [[BR]] 
     149 The impacts of using different u* on temp_sol can be as large as 1-2K for vegetated area. [[BR]] 
     150 
     1512. The results by using SU formula with cdrag (neutual) corrected: [[BR]] 
     152 https://forge.ipsl.jussieu.fr/orchidee/attachment/wiki/DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation/z0mh_SU.pdf [[BR]] 
     153 In the figure, CTL means simulation using trunk. SU means simulation using SU formular (same as Nicolas V.). [[BR]] 
     154 The Ts increases by ~0.5K for most regions with the maximum increases being 1-1.5 K (JJA over desert).  [[BR]] 
     155 The latent heat flux decreases by ~3W/m2 for most regions. [[BR]] 
     156