Changes between Version 33 and Version 34 of DevelopmentActivities/ORCHIDEE-CN/NH3


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Timestamp:
2017-07-11T15:13:11+02:00 (7 years ago)
Author:
taudoux
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  • DevelopmentActivities/ORCHIDEE-CN/NH3

    v33 v34  
    1 = Work of Thomas Audoux carried out during an internship on NH3 = 
     1= Work of Thomas Audoux carried out during an internship on NH3 fluxes in ORCHIDEE model = 
    22This has been done with rev 4164. My work is divided in 3 parts, the first part corresponds to the work done for the internship report. Then, the second part is a brief bibliography about emission factors. Finally, the last part corresponds to the second part of my internship: analyzing ammonia emission factor. 
    33== I. Evaluation of ammonia emissions results calculated by the model ( Fertilizer =0 ) == 
     
    2525 * Humidity 
    2626 * pH 
    27  * Nitrogen Pools (Soil_NH4, Soil_NO3, Soil_NOX and Soil_N2O) [[BR]] 
     27 * Nitrogen Pools (Soil_NH4, Soil_NO3, Soil_NOX and Soil_N2O) 
    2828 * Emissions (NH3) and Depositions (NHX) [[BR]] 
    2929path : /home/users/taudoux/documents/Results/Parameters/ [[BR]] 
     
    5252 * Text documents in which are listed the different values. 
    5353 
    54    === Comparison with data used by LMDz-INCA model === 
    55 path : /home/users/taudoux/documents/Results/Comparison/  [[BR]] 
    56  
    57 Figure, created using "bar_plot_donnees.py", in which for each site are listed the average emission of NH3 for both model. 
    5854 
    5955 
     
    6460||  [[Image(nh3_em_nh4_soil.png, 50%)]]  ||  [[Image(nh3_em_n2o_soil.png, 50%)]]  ||  [[Image(nh3_em_nox_soil.png, 50%)]]  ||  [[Image(nh3_em_no3_soil.png, 50%)]]  || 
    6561 
    66 [[BR]]  
    67  
     62Figure, created using "bar_plot_donnees.py", in which for each site are listed the average emission of NH3 for both model. 
    6863 
    6964||||||||=  Correlation with NH3 emissions (g(NH3-N).m⁻².day⁻¹)   =|| 
     
    7974||  [[Image(Comparison.png, 50%)]]  || 
    8075 
    81  
     76path : /home/users/taudoux/documents/Results/Comparison/   
    8277 
    8378[[BR]] 
     
    125120 
    126121 
    127 === Code was changed ===  
     122=== Code was changed (v1) ===  
    128123'''Separation of nitrogen input. Initially fertilizer, bnf and atmospheric deposition were in the same loop ''' 
    129124 
     
    145140 * Temperature 
    146141 * Humidity  
    147  * Nitrogen Pools (Soil_NH4, Soil_NO3, Soil_NOX and Soil_N2O) and Leaching (NH4 and NO3)  
    148  * Emissions (NH3, N2, N2O, NOx)  
     142 * Nitrogen Pools (soil_nh4, soil_no3, Soil_nox and soil_n2o) and Leaching (NH4 and NO3)  
     143 * Emissions (NH3, N2, N2O, NOX)  
    149144 * GPP  
    150  * Nitrogen input summed (fertilizer, NHx and NOx depositions)  
     145 * Nitrogen input summed (fertilizer, NHX and NOX depositions)  
     146 * SOIL_ACTIVE_N , SOIL_SURF_N , SOIL_SLOW_N , SOIL_PASSIVE_N , TOTAL_M_N LITTER_STR_AB_N , LITTER_MET_AB_N , LITTER_STR_BE_N , LITTER_MET_BE_N , LITTER_WOD_AB_N , LITTER_WOD_BE_N 
    151147 
    152148Respectively in the folders Parameters (T° and Hum), Pools_fluxes, NH3_EM, DEP_FERT and GPP. 
     
    270266 
    271267=== C. EF of each parameters on each site for NH4%=0.5 and 0.8 === 
     268 
    272269path : /home/users/taudoux/documents/Results/B/EFc/ [[BR]] 
    273270Python : barplot_c.py (arg1= Name of the site) using files.txt in which values of nitrogen emissions and leaching are listed in order to plot EF in function of nitrogen inputs (fertilizer, NHx and NOx depositions).  
     
    355352 
    356353 
    357 In order to know if the loops are closed : [[BR]]  
    358 Loop at inorganic nitrogen scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; NH4 and NO3 Plant Uptake ; difference between nitrogen pools shown previously) divided by all nitrogen inputs (NOX and NHX deposition; Mineralisation but also Fertilizer) [[BR]] 
     354The values we found seem to be a little odd... So, in order to know if they are exploitable, we looked at the closure of different loops : 
     355 
     356* Loop at inorganic nitrogen scale : 
     357 
     358We stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; NH4 and NO3 Plant Uptake ; difference between nitrogen pools shown previously) divided by all nitrogen inputs (NOX and NHX deposition; Mineralisation but also Fertilizer) [[BR]] 
     359 
    359360path : /home/users/taudoux/documents/Results/B/EFe/ [[BR]]  
    360361python : barplot_e.py arg1=name of the site [[BR]] 
    361362 
    362 Values in abscissa are all the nitrogen inputs but the fertilization is for each point : 0 , 54.8 , 82.2 , 109.6 , 140 , 164.4 , 191.8 , 219.2 , 365.25 kg/ha/y. 
     363Values in abscissa correspond to all nitrogen inputs but the fertilization is for each point : 0 , 54.8 , 82.2 , 109.6 , 140 , 164.4 , 191.8 , 219.2 , 365.25 kg/ha/y. 
    363364 
    364365||||= DK-Ris =|| 
     
    397398 
    398399 
    399 Loop at ORCHIDEE scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; ; difference between nitrogen pools shown previously + difference between SOIL_ACTIVE_N , SOIL_SURF_N , SOIL_SLOW_N , SOIL_PASSIVE_N , TOTAL_M_N LITTER_STR_AB_N , LITTER_MET_AB_N , LITTER_STR_BE_N , LITTER_MET_BE_N , LITTER_WOD_AB_N , LITTER_WOD_BE_N); divided by all nitrogen inputs (NOX and NHX deposition and Fertilizer) [[BR]] 
     400* Loop at ORCHIDEE scale :  
     401We stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; ; difference between nitrogen pools shown previously + difference between SOIL_ACTIVE_N , SOIL_SURF_N , SOIL_SLOW_N , SOIL_PASSIVE_N , TOTAL_M_N LITTER_STR_AB_N , LITTER_MET_AB_N , LITTER_STR_BE_N , LITTER_MET_BE_N , LITTER_WOD_AB_N , LITTER_WOD_BE_N); divided by all nitrogen inputs (NOX and NHX deposition and fertilizer) [[BR]] 
     402 
    400403path : /home/users/taudoux/documents/Results/B/EFebis/ [[BR]] 
    401404barplot_ebis.py arg1=name of the site 
     
    436439 
    437440 
    438 We can see that there is a problem with NO3 stocks that are continually increasing or leached. It must be a problem with the denitrification. So we looked at the parameterization and saw that a variable called "anvf" takes an important role about denitrifiers. In order to know its effect, we ran a simulation in which this variable was deleted. [[BR]] 
     441We can see that there is a '''problem with NO3 stocks that are continually increasing or leached'''. It must be a problem with the denitrification. So we looked at the parameterization and saw that a variable called "anvf" takes an important role about denitrifiers. In order to know its effect, we ran a simulation in which this variable was deleted. [[BR]] 
    439442Here are the results : [[BR]] 
     443 
    440444path : /home/users/taudoux/documents/Results/B/EFi/ [[BR]] 
    441445python : barplot_init.py arg1=name of the site 
     
    460464 
    461465 
    462 Code was whanged : run_off, the variable "harvest_above_n" were added and ''the denitrifiers activity was changed'' (UPPER BOUND). [[BR]]  
    463  
    464 path of files.txt : /home/users/taudoux/documents/Results/B/Simul 
     466=== Code was changed (v2) ===  
     467Run_off, the variable "harvest_above_n" were added and ''the denitrifiers activity was changed'' (UPPER BOUND). [[BR]]  
     468 
     469path of files.txt : /home/users/taudoux/documents/Results/B/Simul_ratio0.5_v2[[BR]] 
    465470We looked again at the differents loops. [[BR]]  
    466471 
    467 Loop at inorganic nitrogen scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; NH4 and NO3 Plant Uptake ; difference between nitrogen pools shown previously) divided by all nitrogen inputs (NOX and NHX deposition; Mineralisation but also Fertilizer) [[BR]] 
     472* Loop at inorganic nitrogen scale  
    468473 
    469474path : /home/users/taudoux/documents/Results/B/EFf/  
    470475python : barplot_f.py arg1=name of the site 
    471476 
    472 Values in abscissa are all the nitrogen inputs but the fertilization is for each point : 0 , 54.8 , 82.2 , 109.6 , 140 , 164.4 , 191.8 , 219.2 , 365.25 kg/ha/y. 
    473  
    474477||= DK-Ris =|| 
    475478||= 0.5 =|| 
     
    506509||= [[Image(US-Ne3_0.5f.png, 50%)]] =|| 
    507510 
    508 Loop at ORCHIDEE scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; ; difference between nitrogen pools shown previously + difference between SOIL_ACTIVE_N , SOIL_SURF_N , SOIL_SLOW_N , SOIL_PASSIVE_N , TOTAL_M_N LITTER_STR_AB_N , LITTER_MET_AB_N , LITTER_STR_BE_N , LITTER_MET_BE_N , LITTER_WOD_AB_N , LITTER_WOD_BE_N) and the variable harvest_above_n; divided by all nitrogen inputs (NOX and NHX deposition and Fertilizer) [[BR]] 
     511* Loop at ORCHIDEE scale  
     512 
    509513path : /home/users/taudoux/documents/Results/B/EFg/[[BR]] 
    510514python : barplot_g.py arg1=name of the site 
     515 
    511516||= DK-Ris =|| 
    512517||= 0.5 =|| 
     
    544549 
    545550 
    546 Code was changed : ''the denitrifiers activity was changed'' (LOWER BOUND) 
     551=== Code was changed  ===  
     552 
     553''the denitrifiers activity was changed'' (LOWER BOUND) 
    547554path of files.txt : /home/users/taudoux/documents/Results/B/RundBis [[BR]] 
    548555 
     
    550557We looked again at the differents loops. [[BR]]  
    551558 
    552 Loop at inorganic nitrogen scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; NH4 and NO3 Plant Uptake ; difference between nitrogen pools shown previously) divided by all nitrogen inputs (NOX and NHX deposition; Mineralisation but also Fertilizer) [[BR]] 
    553  
     559* Loop at inorganic nitrogen scale  
    554560path : /home/users/taudoux/documents/Results/B/EFfbis/ [[BR]] 
    555561python : barplot_fbis.py arg1=name of the site 
    556562 
    557 Values in abscissa are all the nitrogen inputs but the fertilization is for each point : 0 , 54.8 , 82.2 , 109.6 , 140 , 164.4 , 191.8 , 219.2 , 365.25 kg/ha/y. 
    558  
    559563||= DK-Ris =|| 
    560564||= 0.5 =|| 
     
    591595||= [[Image(US-Ne3_0.5fbis.png, 50%)]] =|| 
    592596 
    593 Loop at ORCHIDEE scale : we stacked in barplot all the nitrogen outputs (N2, N2O, NH3, NOX emissions ; NH4 and NO3 Leaching; ; difference between nitrogen pools shown previously + difference between SOIL_ACTIVE_N , SOIL_SURF_N , SOIL_SLOW_N , SOIL_PASSIVE_N , TOTAL_M_N LITTER_STR_AB_N , LITTER_MET_AB_N , LITTER_STR_BE_N , LITTER_MET_BE_N , LITTER_WOD_AB_N , LITTER_WOD_BE_N) and the variable harvest_above_n; divided by all nitrogen inputs (NOX and NHX deposition and Fertilizer) [[BR]] 
     597* Loop at ORCHIDEE scale  
    594598 
    595599path : /home/users/taudoux/documents/Results/B/EFgbis/ [[BR]] 
    596600python : barplot_gbis.py arg1=name of the site 
     601 
    597602||= DK-Ris =|| 
    598603||= 0.5 =|| 
    599 ||= [[Image(DK-Ris_0.5gbis.png, 50%)]] =| 
     604||= [[Image(DK-Ris_0.5gbis.png, 50%)]]  
    600605 
    601606||= FR-Gri =|| 
     
    629634||= [[Image(US-Ne3_0.5gbis.png, 50%)]] =|| 
    630635 
    631 Those results seem to suit good compared to others. So, in order to compare values of the emission with data we can find in the literature we calculate the emission factors of different fluxes.  Plot EF in function of nitrogen inputs (fertilizer, NHx and NOx depositions) 
     636Those results seem to suit better compared to others. So, in order to compare values of the emission with data we can find in the literature we calculate the emission factors of different fluxes.  Plot EF in function of nitrogen inputs (fertilizer, NHx and NOx depositions) [[BR]] 
    632637 
    633638path : /home/users/taudoux/documents/Results/B/EFz/ [[BR]] 
     
    669674 
    670675Globally, by comparing with the first simulation, we can see that NH3 and NOx Emission Factor decreased in favor of NO3 and NH4 leaching. Moreover, the nitrogen seems to no longer be blocked at the nitrate state making it possible to be denitrified and emitted by N2, N2O, NOx emissions or to be leached as NOx. 
     676 
     677---- 
     678 
     679=== Brief look at the global simulation done by Palmira MESSINA === 
     680This has been done with rev ?.  [[BR]] 
     681 
     682I looked how ammonia emissions respond in this global simulation in order to see if the behavior previously seen site to site is the same on a larger scale. 
     683 
     684||||||||=  Average emission of ammonia (g(NH3-N).m⁻².day⁻¹) in function of the parameter considered    =|| 
     685||= Temperature (K) =||= Humidity (-) =||= pH (-) =||= Deposition g(NHx).m^-2 =|| 
     686||=  [[Image(nh3_em_t2m_g.gif, 50%)]]  =||=  [[Image(nh3_em_hum_g.gif, 50%)]]  =||=  [[Image(nh3_em_pH_g.gif, 50%)]]  =||=  [[Image(nh3_em_nhx_dep_g.gif, 50%)]]  =|| 
     687||= SOIL NH4 g(NH4).m^-2 =||= SOIL N2O g(N2O).m^-2 =||= SOIL NOX g(NOx).m^-2 =||= SOIL NO3 g(NO3).m^-2 =|| 
     688||=  [[Image(nh3_em_soil_nh4_g.gif, 50%)]]  =||=  [[Image(nh3_em_soil_n2o_g.gif, 50%)]]  =||=  [[Image(nh3_em_soil_nox_g.gif, 50%)]]  =||=  [[Image(nh3_em_soil_no3_g.gif, 50%)]]  =||