1. 1.A.3.a - Civil Aviation & 1C1.a – Aviation Bunkers Scott McKibbon, Sr. Program Engineer Manager – Transportation Sector Greenhouse Gas Division Environment Canada October 4 th, 2007

2. 2 1.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Domestic and International Aviation fuel sales Sector Summary Tables Aviation Model Aviation Turbo fuel sales reported in the RESD 1 st Generation Methodology Fuel Sales Based Early Inventories used fuel sales reported in National Energy Balance (RESD) to split International from Domestic Sales to Domestic Airlines were allocated to Civil (Domestic) Aviation, Sales to Foreign considered International (Bunker) travel. 1 st Generation Methodology last used for 2004 Submission (1990-2002 Inventory)

3. 3 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Line #33 Canadian Airlines 1.A.3.a Civil Aviation 1C1.a Aviation Bunkers Line #34 Foreign Airlines 1C1.a Aviation Bunkers Line #45 Public Administration 1.A.3.a Civil Aviation Line #46 Commercial and Other Institutional 1.A.3.a Civil Aviation Civil Aviation 1.A.3.a Turbo Fuel Methodology Turbo-fuel sales reported in the RESD Need Method to split

4. 4 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Domestic and International Aviation fuel sales Sector Summary Tables Aviation Model Aviation Turbo fuel sales reported in the RESD Enplaned and deplaned passengers Regional allocates fuel sold to Canadian carries for domestic flights Tonne kilometres traveled by Canadian Carriers Calculate the percentage of the fuel sold to Canadian carriers used for domestic travel 2 nd Generation Methodology Tonne-kilometer (freight) Based

5. 5 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Turbo Fuel Methodology Tonne kilometres traveled by Canadian Carriers Tonne Kilometres are reported by Statistics Canada for Canadian Carriers by sector (Dom/Int/Other Int) and include both passenger and freight activity Method developed by Transport Canada for Revenue Canada to estimate the tax revenue expected as a result of fuel sold to Canadian Carriers for domestic flights Assumption is that 50% of international tonne kilometres flown by Canadian Airlines uses domestically purchased fuel

6. 6 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Turbo Fuel Methodology Enplaned and deplaned passenger activity by sector is reported by Statistics Canada Regionally allocates domestic portion of the fuel sold to Canadian carriers to individual Canadian provinces for domestic reporting Enplaned and deplaned passengers

7. 7 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a 1 st vs. 2 nd Generation Methodology

8. 8 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Validation of Results Comparing our results with SAGE to verify our initial assumption on the percentage of international Tonne- Kilometres flown by Canadian Carriers on domestically purchased fuel (Initial assumption was 50%) SAGE (System for Assessing Aviation's Global Emissions) was developed by the FAA to predict aircraft fuel burn and emissions for civil aviation globally. Adjusting from 50% to 69% minimized difference between initial results and SAGE output.

9. 9 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a

10. 10 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a

11. 11 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a

12. 12 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Domestic and International Aviation fuel sales Sector Summary Tables Aviation Model Aviation fuel sales reported in the RESD EFs from Jaques(1992) Aviation Gasoline Methodology Overview

13. 13 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Aviation Gasoline Methodology Aviation fuel sales reported in the RESD Line #33 Canadian Airlines 1.A.3.a Civil Aviation Line #34 Foreign Airlines 1C1.a Aviation Bunkers Line #45 Public Administration 1.A.3.a Civil Aviation Line #46 Commercial and Other Institutional 1.A.3.a Civil Aviation

14. 14 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Tier 3a Model based on flight movement data is under development. CH 4 and N 2 O emission Factors will be reviewed with the implementation of the new model. 3rd Generation Methodology Origin-Destination Based

15. 15 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Barriers experienced populating Tier 3a model Available sources of O-D data (TC, NAV, OAG) Canadian Airport tower management transferred from Govt to Private Agency (Nov 1996) Known shortfalls (Pros/Cons) of these sources Cost vs. benefit of data source procurement 3rd Generation Methodology Origin-Destination Based

16. 16 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Civil Aviation 1.A.3.a Describe current Data set (TC 1981-1996) Describe omissions and potential errors Describe decisions to fill out/in database attributes and identify success with process 3rd Generation Methodology Origin-Destination Based

17. 17 October 4th, 20071.A.3 - Fuel Combustion – Transport Emissions Questions Scott McKibbon, Sr. Program Engineer Manager – Transportation Sector Greenhouse Gas Division Environment Canada scott.mckibbon@ec.gc.ca 1-819-953-1657