Version 8 (modified by klaurent, 17 months ago) (diff) |
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Intermediate conclusions
Pre industrial run
Some miscellaneous characteristics:
- GES configuration,
- 39 vertical layers, resolution 144x142,
- from fictives years 1970 to 2015,
- no anthropogenic emissions,
- BBG emissions stayed at 1850 (as well as aircraft).
Quantities to remember:
- Total N2O loss: 10.73 TgN/y
- Total N2O emissions: 10.73 TgN/y
- Burden : 1368 TgN
CEDS emissions for N2O (and NH3)
List of categories and subcategories:
- Agriculture: ['3B_Manure-management', '3D_Soil-emissions']
- Energy: ['1A1a_Electricity-autoproducer', '1A1a_Electricity-public', '1A1a_Heat-production', '1A1bc_Other-transformation','1B1_Fugitive-solid-fuels', '1B2_Fugitive-petr', '7A_Fossil-fuel-fires']
- Industrial: ['1A2a_Ind-Comb-Iron-steel', '1A2b_Ind-Comb-Non-ferrous-metals', '1A2c_Ind-Comb-Chemicals', '1A2d_Ind-Comb-Pulp-paper', '1A2e_Ind-Comb-Food-tobacco', '1A2f_Ind-Comb-Non-metalic-minerals', '1A2g_Ind-Comb-Construction', '1A2g_Ind-Comb-machinery','1A2g_Ind-Comb-mining-quarying', '1A2g_Ind-Comb-other','1A2g_Ind-Comb-textile-leather', '1A2g_Ind-Comb-transpequip','1A2g_Ind-Comb-wood-products','1A5_Other-unspecified', '2A1_Cement-production', '2B_Chemical-industry', '7BC_Indirect-N2O-non-agricultural-N', '2B2_Chemicals-Nitric-acid', '2B3_Chemicals-Adipic-acid']
- Transportation: ['1A3b_Road', '1A3c_Rail','1A3dii_Domestic-navigation', '1A3eii_Other-transp']
- Residential, Commercial, Other: ['1A4a_Commercial-institutional', '1A4b_Residential', '1A4c_Agriculture-forestry-fishing']
- Solvents production and application: [ '2D_Other-product-use' ]
- Waste: ['5C_Waste-combustion', '5D_Wastewater-handling', '5E_Other-waste-handling']
- Int. Aviation / Shipping ['1A3di_International-shipping', '1A3ai_International-aviation', '1A3aii_Domestic-aviation']
NB: It exists also some other subcategories but, there are zero N2O emission.
EDGAR emissions
List of categories and subcategories:
- AFOLU : ['Biomass burning (CH4, N2O)', 'Managed soils and pasture (CO2, N2O)', 'Manure management (N2O, CH4)', 'Synthetic fertilizer application (N2O)']
- Buildings : ['Residential', 'Non-residential']
- Energy systems : ['Electricity & heat', 'Other (energy systems)', 'Oil and gas fugitive emissions', 'Petroleum refining']
- Industry : ['Chemicals', 'Other (industry)', 'Waste', 'Metals']
- Transport : ['Domestic Aviation', 'Other (transport)', 'Road', 'Inland Shipping', 'International Aviation', 'Rail ', 'International Shipping']
Exploration of inventories
- Bouwman Inventory :
- 846 N2O emission measurements in agricultural fields and 99 measurements for NO emissions
- The data set includes literature reference; location of the Measurement; climate; soil type, texture, organic C content, N content, drainage, and pH; residues left in the field; crop; fertilizer type; N application rate; method and timing of fertilizer application; NH4+ application rate (for organic fertilizers), N2O/NO emission/denitrification (expressed as total over the measurement period, as % of N rate, and as % of N rate accounting for control); measurement technique; length of measurement period; frequency of the measurements; and additional information, such as year/season of measurement, information on soil, crop or fertilizer management, specific characteristics of the fertilizer used, and specific weather events important for explaining the measured emissions.
- global gridded (1°x1° resolution) data bases of soil type, soil texture, NDVI (vegetation indices) and climate.
- global emission thus calculated is 6.8 Tg N2O-N y-1. The tropics (± 30° of the equator) contribute 5.4 Tg N2O-N y-1 and the emission from extra-tropical regions (poleward of 30°) is 1.4 Tg N2O-N y-1 .
- Transcom Inventory :
- "Emissions from natural soils (6–7 TgN yr −1 ) account for 60–70 % of global N2O emissions (Syakila and Kroeze, 2011; Zaehle et al., 2011). The remaining 30–40 % of emissions is from oceans (4.5 TgN yr −1 )"
- Five different inversion frameworks (chemistry transport model) : MOZART4 (2.5° × 1.88°), ACMt42167 (2.8° × 2.8°), TM3 (5.0° × 3.75°), TM5 (6.0° × 4.0°), LMDZ4 (3.75° × 2.5°).
- Data set from Orchidee O-CN, Pisces, edgar-4.1, gfed-2 and from different category (terrestrial biosphere, ocean, waste water, solid waste, solvents, fuel prod, ground transport, industry combustion, residential and other combustion, shipping, biomass burning)
- Values of N2O emissions per inventory :
(MtN/yr) | Ocean | Land | Total | (MtN2O/yr) | Ocean | Land | Total |
Bouwman | 3.595 | 7.531 | 11.126 | xxx | 5.650 | 11.835 | 17.485 |
Transcom | 4.222 | 10.573 | 14.795 | xxx | 6.634 | 16.614 | 23.248 |
Piscidee | 3.962 | 7.107 | 11.069 | xxx | 6.226 | 11.168 | 17.394 |
- Comparison between Incasflx outputs and masks on NetCDF files:
- Output INCASFLX - | - Notebook computing (FracMask?) - | - Notebook computing (0/1 Mask) - | |||||||
(MtN2O/yr) | Ocean | Land | Ratio O/L | Ocean | Land | Ratio O/L | Ocean | Land | Ratio O/L |
Bouwman | 5.6505 | 11.835 | 0.478 | 6.58 | 10.945 | 0.6012 | 5.973 | 11.552 | 0.517 |
32.3% | 67.7% | 37.6% | 62.4% | 34.1% | 65.9% | ||||
Transcom | 6.634 | 16.614 | 0.399 | 8.879 | 14.421 | 0.616 | 8.118 | 15.184 | 0.535 |
28.5% | 71.5% | 38.1% | 61.9% | 34.8% | 65.2% | ||||
Piscidee | 6.226 | 11.168 | 0.557 | 6.651 | 10.782 | 0.617 | 6.095 | 11.339 | 0.538 |
35.8% | 64.2% | 38.2% | 61.8% | 34.9% | 65.1% |
General remarks: Variable for Bouwman = fn2o_oce & fn2o_soil. Land emissions > Ocean emissions. Ocean emissions ~ 6 Mt/yr. Land emissions -> differences because of different period (pre-industrial & nowadays). Per line, Ocean+Land are equal independently of the calculation made.
Attachments (13)
- EDGAR_emissions.png (237.1 KB) - added by klaurent 17 months ago.
- CEDS_emissions.png (359.7 KB) - added by klaurent 17 months ago.
- global_em_N2O_accumulated.png (115.5 KB) - added by klaurent 15 months ago.
- global_em_N2O_alone.png (120.5 KB) - added by klaurent 15 months ago.
- global_em_alone_TgN.pdf (19.2 KB) - added by klaurent 15 months ago.
- global_em_accumulated_TgN.pdf (21.4 KB) - added by klaurent 15 months ago.
- global_em_alone_TgN.png (75.6 KB) - added by klaurent 15 months ago.
- global_em_accumulated_TgN.png (76.4 KB) - added by klaurent 15 months ago.
- final_em.png (48.1 KB) - added by klaurent 15 months ago.
- final_em_sect.png (364.6 KB) - added by klaurent 15 months ago.
- figure5_2spinup.png (170.0 KB) - added by klaurent 4 months ago.
- figure4_.png (105.4 KB) - added by klaurent 4 months ago.
- preindus_lifetimes.png (76.8 KB) - added by klaurent 4 months ago.
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