meta data for this page
  •  

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
sector:energy:fuel_combustion:transport:navigation:international_maritime_navigation [2022/03/17 07:55] – [Discussion of emission trends] kotzullasector:energy:fuel_combustion:transport:navigation:international_maritime_navigation [2022/03/22 12:08] (current) – [Recalculations] kotzulla
Line 24: Line 24:
 | <WRAP left round info 100%>  AD<sub>1.A.3.d i</sub> = PAD<sub>NEB line 6</sub> - AD<sub>1.A.3.d ii (a) - IMO</sub>  - AD<sub>1.A.4.c iii - IMO</sub> - AD<sub>1.A.5.b iii - IMO</sub>  </WRAP>  | with \\   * AD<sub>1.A.3.d i</sub> - tier1 activity data for International maritime navigation\\   * PAD<sub>NEB line 6</sub> - primary over-all fuel deliveries data from NEB line 6 - 'International Maritime Bunkers'\\   * AD<sub>1.A.3.d ii (a) - IMO</sub> - tier3 activity data for IMO-registered ships involved in national maritime navigation\\   * AD<sub>1.A.4.c iii - IMO</sub> - tier3 activity data for IMO-registered ships involved in national fishing\\   * AD<sub>1.A.5.b iii - IMO</sub> - tier3 activity data for IMO-registered ships involved in military navigation  | | <WRAP left round info 100%>  AD<sub>1.A.3.d i</sub> = PAD<sub>NEB line 6</sub> - AD<sub>1.A.3.d ii (a) - IMO</sub>  - AD<sub>1.A.4.c iii - IMO</sub> - AD<sub>1.A.5.b iii - IMO</sub>  </WRAP>  | with \\   * AD<sub>1.A.3.d i</sub> - tier1 activity data for International maritime navigation\\   * PAD<sub>NEB line 6</sub> - primary over-all fuel deliveries data from NEB line 6 - 'International Maritime Bunkers'\\   * AD<sub>1.A.3.d ii (a) - IMO</sub> - tier3 activity data for IMO-registered ships involved in national maritime navigation\\   * AD<sub>1.A.4.c iii - IMO</sub> - tier3 activity data for IMO-registered ships involved in national fishing\\   * AD<sub>1.A.5.b iii - IMO</sub> - tier3 activity data for IMO-registered ships involved in military navigation  |
  
 +As a result, activity data can fluctuate strongly from year to year. 
 +
 +However, this effect can be explained with the fact that large ocean-going ships do not need to bunker fuels on every single harbour but can go on for weeks without any additional fuel uptake. 
 +
 +This can be further increased with increasing differences in fuel prices. 
  
 __Table 1: Annual fuel consumption, in terajoules__ __Table 1: Annual fuel consumption, in terajoules__
Line 83: Line 88:
 **NFR 1.A.3.d i** is **not considered in the key category analysis**. **NFR 1.A.3.d i** is **not considered in the key category analysis**.
  
-Emission trends for unregulated pollutants (such as **NH<sub>3</sub>**, **NO<sub>x</sub>**, **NMVOC** and **CO**, all **HM** and **POPs**) with only slight changes in the annual over-all IEFs applied, follow the trends in fuel consumption and the shares of diesel and heavy fuel oil:+Basically, with no significant technical improvements with respect to mitigation technologies, trends in emissions depend more or less directly the amounts of fuels bunkered in German harbours and the contributions of diesel oil/light heating oil and heavy fuel oil to the over-all fuel input.
  
-{{ :sector:energy:fuel_combustion:transport:navigation:em_1a3di_nox.png?700 }}+Here, as the amounts of fuels allocated to international maritime navigation represent the remains of annual over-all inland fuel deliveries minus fuel consumption in domestic shipping, activity data and, hence, emissions, fluctuate strongly from year to year (see also information on activity data as stated above).
  
-On the other hand, the emission trends for **SO<sub>x</sub>** and **PM**, both depending on the fuel's sulphur content, follow not only the trends in fuel consumption but do also reflect fuel-sulphur legislation:+Therefore, especially emission trends for unregulated pollutants (such as **NH<sub>3</sub>**, **NO<sub>x</sub>**, **NMVOC** and **CO**, all **HM** and **POPs**) with only slight changes in the annual over-all IEFs applied, follow the trends in fuel consumption and the shares of diesel and heavy fuel oil: 
 + 
 +{{ :sector:energy:fuel_combustion:transport:navigation:em_1a3di_nox.png?700 }}
  
-{{ :sector:energy:fuel_combustion:transport:navigation:1a3di_em_so2.png?700 }}+In contrast, emission trends for **SO<sub>x</sub>** and **PM**, both depending on the fuel's sulphur content, follow not only the trends in fuel consumption but do also reflect fuel-sulphur legislation:
  
 +{{:sector:energy:fuel_combustion:transport:navigation:1a3di_em_so2.png?700| Annual sulphur oxides emissions }}
 +{{:sector:energy:fuel_combustion:transport:navigation:em_1a3di_pm.png?700| Annual particulate matter emissions }}
 ===== Recalculations ===== ===== Recalculations =====
  
Line 116: Line 125:
 In addition, all country-specific **emission factors have been revised** compared to last year's submission but cannot be displayed here. In addition, all country-specific **emission factors have been revised** compared to last year's submission but cannot be displayed here.
  
-<WRAP center round info 60%> + 
-For more information on recalculated emission estimates for Base Year and 2019, please see the pollutant-specific recalculation tables following chapter [[general:recalculations:start | 8.1 - Recalculations]].+<WRAP center round info 65%> 
 +For **pollutant-specific information on recalculated emission estimates for Base Year and 2019**, please see the recalculation tables following [[general:recalculations:start|chapter 8.1 - Recalculations]].
 </WRAP> </WRAP>