Changes between Version 115 and Version 116 of DevelopmentActivities/ORCHIDEE-DOFOCO


Ignore:
Timestamp:
2017-06-20T12:49:06+02:00 (7 years ago)
Author:
luyssaert
Comment:

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  • DevelopmentActivities/ORCHIDEE-DOFOCO

    v115 v116  
    2727=== Age classes === 
    2828=== Diameter classes === 
     29Diameter classes were introduced to better simulate the canopy structure. Given that the canopy is the interface between the land and the atmosphere this feature has effects well beyond forest management. Stand structure affects albedo, transpiration, photosynthesis, soil temperature, roughness length, and recruitment. The computational cost of using diameter classes is negligible and when a reasonable low number of diameter classes is used, the memory cost is also very small. The number of diameter classes is the same for all PFTs and is set by the parameter NCIRC. ORCHIDEE-CN, ORCHIDEE-CNP, and ORCHIDEE-MICT are all coded and used for NCIRC = 1. ORCHIDEE-DOFOCO and ORCHIDEE-CN-CAN are coded and tested for NCIRC = 3. 
     30 
     31 
     32CIRC_CLASS_DIST__00001=1 
     33#CIRC_CLASS_DIST__00002=3 
     34#CIRC_CLASS_DIST__00003=1  
     35  
     36 
    2937=== CWRR vs Choinell === 
    3038=== Albedo === 
    … …  
    3644A: use the energy scheme as found in the original enerbil.f90 
    3745 
    38 B: use the multi-layer energy scheme for a single canopy layer. This collapses the multi-layer energy scheme to the original enerbil code, but if you wish to take water stress into account in your simulation, you need to choose this method.  
     46B: use the multi-layer energy scheme for a single canopy layer. This collapses the multi-layer energy scheme to the original enerbil code, but if you wish to take hydraulic water stress with feedback on stomatal conductance into account in your simulation, you need to choose this method.  
    3947 
    4048Several flags exist to control these choices. For simplicity, a flag has been made to automatically control several of the flags related to the multi-layering, called '''multi_layer_control'''.  Multi_layer_control has 4 possibilities 
    … …  
    48564 – single layer, using the original enerbil scheme (i.e. choice A above) 
    4957 
    50 The default setting of  multi_layer_control in ORHIDEE-CN-CAN is 1. This is well tested and save to use. More details of the flags controlling the multi-layer can be found below and within the model code. 
     58The default setting of  multi_layer_control in ORHIDEE-CN-CAN is 1. This is well tested and considered save to use. More details of the flags controlling the multi-layer can be found below and within the model code. 
    5159 
    5260The flags controlled by the multi_layer_control are: