Changes between Version 1 and Version 2 of DevelopmentActivities/ORCHIDEE-CNP/issues


Ignore:
Timestamp:
2016-03-16T10:11:03+01:00 (8 years ago)
Author:
dgoll
Comment:

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  • DevelopmentActivities/ORCHIDEE-CNP/issues

    v1 v2  
    88 
    99=== MAJOR ISSUE: the soil and litter CN ratios for spinup_analytic=== 
    10 The running average is too slow. We need to shorten the average window, like it is done for other longterm variables in ORCHIDEE. 
     10The running averages of the stoichiometry of the respective pools are reset every spinup cycle to zero.  
     11Therefore, the running averages are always too small. According to NV, this doesn't happen in his setup. I modified the calculation and ensured that the variables are written out in the restart file in a clean way. The modifications should ensure that the running averages work for all setups.   
    1112 
    1213== UNRESOLVED == 
    … …  
    1415=== Reading in N inputs === 
    1516The variables storing the N inputs in the restart file are all undef. Not quite sure why. I set them all to zero. 
    16  
    1717 
    1818=== Soil type inconsistency in ORCHIDEE-CN-P === 
    … …  
    2929The effect of long-term nitrogen stress on the ratio between roots and leaves of O-CN is commented out in the ORCHIDEE-CN.  We should reintroduce the effect of nutrient stress on that ratio.  
    3030This task is hampered by my difficulties to understand how water stress is affecting the ratio in DOFOCO vs ORCHIDEE-CN. 
     31 
     32 
     33=== Endless accumualtion of heartwood === 
     34I experience that the heartwood pool is still accumulating biomass after 500 yr of simulation. This could be due to the parameter for turnover of sapwood which was changed from  730 days (trunk) to 11680 days (can) or as we use only one size class of trees (ncirc_class=1).