Changes between Version 12 and Version 13 of DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation

Timestamp:

2016-02-23T15:35:40+01:00 (8 years ago)

Author:

nvuilsce

Comment:

--

DevelopmentActivities/CMIP6/DevelopmentsCMIP6/zo_evaporation

@@ -175 +175 @@
 Some authors have proposed formulations of z0 which vary with the LAI as it is roughly done for herbaceous PFTs into ORCHIDEE. For instance, [attachment:su_2001.pdf Su et al. (2001)] developed such formulation which has been used and tested recently at fluxnet sites by [attachment:ershadietal2015.pdf Ershadi et al. (2015)]. The formulation of Su et al., 2001 has been implemented into ORCHIDEE. Inclusion the Su formula for z0 leads to reduce/cancel the bias on latent heat flux at winter for deciduous forest (TeDBF pfts). Results obtained with this formulation are shown below:
 
-||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_BoENF/lh_month_9874/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_CROc3/lh_month_22172/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_CROc4/lh_month_21877/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_GRAc3/lh_month_7894/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeDBF/lh_month_3593/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeEBF/lh_month_15717/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeENF/lh_month_20645/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TrEBF/lh_month_21204/lh_month.gif,100%)]]||
+||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_BoENF/lh_month_20818/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_CROc3/lh_month_25383/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_CROc4/lh_month_3329/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_GRAc3/lh_month_7772/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_TeDBF/lh_month_15133/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_TeEBF/lh_month_27651/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_TeENF/lh_month_21186/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-Su-r3197/fluxnet_taylor_diff_Rough-Su-r3197_Rough-ctrl-r3197_TrEBF/lh_month_19904/lh_month.gif,100%)]]||
 
 === The "z0h=z0m/10" formulation ===
 In the formulation of Su and many others, one distinguishes for the roughness length for heat (z0h) and for momentum (z0m). Fuxing has studied in coupled mode how accounting for both z0m and z0h in the formulation of the drag coefficient impacts on the surface fluxes and properties (temperature). Here we look at the impact on force in-situ simulations of accounting for the formula where z0h=z0m/10.
 
-||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_BoENF/lh_month_9874/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_CROc3/lh_month_22172/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_CROc4/lh_month_21877/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_GRAc3/lh_month_7894/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeDBF/lh_month_3593/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeEBF/lh_month_15717/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TeENF/lh_month_20645/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p86ghatt/OL2/PROD/ref2425/FL1.CWRR.2425/fluxnet_taylor_diff_FL1.CWRR.2425_FL1.Choi.2425_TrEBF/lh_month_21204/lh_month.gif,100%)]]||
+||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_BoENF/lh_month_29372/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_CROc3/lh_month_16611/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_CROc4/lh_month_8621/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_GRAc3/lh_month_27165/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_TeDBF/lh_month_22779/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_TeEBF/lh_month_15465/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_TeENF/lh_month_20418/lh_month.gif,100%)]]||[[Image(http://dods.extra.cea.fr/work/p529vui/OL2/DEVT/Eval-ORCHIDEE/Roughness/Rough-z0h-r3197/fluxnet_taylor_diff_Rough-z0h-r3197_Rough-ctrl-r3197_TrEBF/lh_month_28661/lh_month.gif,100%)]]||