Changes between Version 9 and Version 10 of ESM2025-N-cycle/Meetings


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Timestamp:
10/05/22 16:34:33 (19 months ago)
Author:
klaurent
Comment:

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  • ESM2025-N-cycle/Meetings

    v9 v10  
    33[[PageOutline]] 
    44 
     5 
     6=== On Wednesday, 5th October ===  
     7 
     8In person with Didier and Nicolas.  
     9 
     10Review of the latest results for the present day run (because Didier wasn't present at the last meeting), with: 
     11  1. Data used (BBG, NAT and ANT); 
     12  2. Results of vertical profiles and total loss for 2000 (year with an imposed rescaling at 316 ppb); 
     13  3. Results over the whole period (2000-2007) with vertical concentration, surface concentration, total loss and burden. 
     14 
     15Show first result of countries/great regions repartition. Mainly, discussion due to a reduction in seasonality when removing soil emissions from the agricultural sector (with the help of a factor). Interrogation of which repartition country/great region to use: the EDGAR/Minx one (more precise and fine than the other two found in CEDS/Hoesly articles). 
     16 
     17What to do before 1970? Discussion on reconstruction emissions for pre industrial period (from a proxy or with surface concentration + total loss): 
     18  * The idea of a proxy from NMVOC/CEDS could be interesting because the evolution of emissions seems to be similar between NMVOC and N,,2,,O (by great regions and/or sectors).  
     19  * An other idea (but more atypical) could be to see the difference between burden and total loss to the atmosphere in order to determine the sources. And then, using natural and biomass burning emissions (considered as good), we can determine emissions from anthropogenic sources (globally, not sector by sector). 
     20 
     21__//**TO DO**//__ 
     22 * Continue to explore the CEDS inventory and the analysis by country (aggregate by great region and then use mask to reconstruct global emissions). 
     23 * Make a test: from total loss distribution and burden (of CMIP6 simulation): try to recover anthropogenic emissions. 
     24 * Use a proxy-like from NMVOC to reconstruct anthropogenic emissions from 1850 to 1970. 
     25 * Compare EDGAR emissions and CEDS emissions (global and by great regions). 
     26 
     27The main objective of the coming weeks will be to have natural, biomass burning and anthropogenic emissions from 1850 to 1970 (in order to use them into the coupled model). 
     28 
     29For the next ESM2025 meeting, maybe prepare some slides (on subject: //Forcing  data and emissions compiled and harmonized (i.e. any new forcing not available from CMIP6 - e.g. anthropogenic CH4 emissions) for use in XCA2 demonstration simulations//) 
     30 
     31 
    532=== On Wednesday, 21th September ===  
    633 
     
    835 
    936Presentation of recent results for the present day run, with: 
    10  1) Data used (BBG, NAT and ANT); 
    11  2) Results of vertical profiles and total loss for 2000 (year with an imposed rescaling at 316 ppb); 
    12  3) Results over the whole period (2000-2007) with vertical concentration, surface concentration, total loss and burden. 
     37 1. Data used (BBG, NAT and ANT); 
     38 2. Results of vertical profiles and total loss for 2000 (year with an imposed rescaling at 316 ppb); 
     39 3. Results over the whole period (2000-2007) with vertical concentration, surface concentration, total loss and burden. 
    1340 
    1441Oceanic emissions seem constant over 150 years: Marion says it is okay, because N2O concentration are not so modified with increase of temperature and so on.