1. Emissions Inventory BUNKER EMISSIONS IN PORTUGAL SUBMISSION 2004 WORKSHOP ON EMISSIONS OF GREENHOUSE GASES FROM AVIATION AND NAVIGATION EEA-COPENHAGEN, 17-18 May 2004

2. Emissions Inventory Good Practice Table 2.9 Distinction Between Domestic and International Flights DomesticIntern. Depart and Arrive in Same Country yesNo Depart from one country and arrive in another Noyes Depart in one country, stop in the same country without dropping or picking up any passengers or freight, then depart again to arrive in another country Noyes Depart in one country, stop in the same country and drop or pick passengers or freight, then depart finally arriving in another country Domestic Stage Intern. Stage Depart in one country, stop in the same country, only pick up more passengers or freight and then depart finally arriving in another country Noyes Depart in one country with a destination in another country, and makes an intermediate stop in the destination country where no passengers or cargo are loades NoYes

3. Emissions Inventory AIR TRAFFIC EMISSIONS Methodology 2003 Cruise Fuel Sales National (flag) International (flag) LTO Cruise LTO Domestic International Domestic International Domestic International Domestic International 2004

4. Emissions Inventory Fuel Sales (toe/yr) Source: General-Directorate of Energy Increase on Sales -26 % 1990->2002 -Decrease after 2000 - Increase JP National

5. Emissions Inventory LTO IN AIRPORTS ANA, Aeroportos S.A. INE (National Statistics) LTO Increase - Steady - Sharp Increase after 1998 - 82 % from 1990 to 2002 - Anual Average rate 5.22 %

6. Emissions Inventory MOVEMENTS PER PLANE TYPE (ANA Airports) Example: Lisbon Airport Source: ANA – Aeroportos de Portugal S.A.

7. Emissions Inventory LTO per ORIGIN-DESTINY Source: All data from INE (National Statistics). Year 2000

8. Emissions Inventory CRUISE per OD Source: INE 2000 for National Carriers Indicator: Fuel Consumption  p.km per OD

9. Emissions Inventory Tier 1/ Tier 2 - LTO / CRUISE Tier 1 Emissions = FC * EF (eq. 2.7) EF assuming 10% of fuel is burnt in LTO Tier 2a Emissions = LTO emi + CRUISE emi (eq. 2.8) LTO emi = LTO * EF LTO (eq. 2.9) LTO FC = LTO * EF FC (eq. 2.10) Cruise emi = (Total FC - LTO FC )* EF CRUISE (eq. 2.11) Tier 2b Emissions = LTO emi + CRUISE emi (eq. 2.8) LTO emi =  p [LTO (p) * EF LTO(p) ] LTO FC =  p [LTO (p) * EF FC (p) ] Cruise emi = (Total FC - LTO FC )* EF CRUISE

10. Emissions Inventory EF (Submission 2003) Tier 2a

11. Emissions Inventory EF (submission 2004) Tier 2b

12. Emissions Inventory EF Reference Submission 2003 UNL-FCT-GASA (1999) EMEP/CORINAIR 94 IPCC Revised 1996 Submission 2004 EMEP/CORINAIR 3 rd ed EMB; BEC; SF3; DHT; DO8; D28; DO2; F50; AN2; ATP; 146; 100; F28; 737; DC9; DC8; OUTROS; M80; 757; 727; 320; 310; 767; AB3; 340; AB4; D10; 747 EPA/FAEED (USA) PAG; HS7; EMB; DHT; DFL; SF3; BEC; ACD; CVF; AN2; 146; B11; BAT; F28; 100; DC9; 320; CRV; 737; D9S; M80; OUTROS; 727; 757; 310; DC8; 767; AB4; AB3; TU6; TUPOLEV; 707; 340; TU5; D10; L10; L15; M11; 747

13. Emissions Inventory AIR TRAFFIC EMISSIONS - GWP

14. Emissions Inventory COMPARISON WITH OTHER ESTIMATES

15. Emissions Inventory WATER-BORNE NAVIGATION Fuel Sales (General Directorate of Energy) -Prevalence of Internal Bunkers - Decrease of 14 % from 1990 to 2002 Emission Factors

16. Emissions Inventory GREEN-HOUSE GAS EMISSIONS (GWP) 1A COMBUSTION IN ENERGY Source: IA - Domestic Air Traffic – 0.6 % 1A1 - National Navigation Bunkers – 1.2 -> 0.4 % 1A1