1.A.3.a i (i) - International Civil Aviation: LTO

Last updated on 14 Mar 2018 08:45 (cf. Authors)

Short description

NFR-Code Name of Category Method AD EF Key Category 1
1.A.3.a i (i) International Civil Aviation: LTO T1, T2, T3 NS, M CS, D, M no key category

In NFR category 1.A.3.a i (i) - Internatinal Civil Aviation: LTO emissions during LTO stage (Landing/Take-off: 0-3,000 feet) are reported.
In the following, information on sub-category specific AD, (implied) emission factors and emission estimates are provided.

Method

Actitvity Data

Specific jet kerosene consumption during LTO-stage is calculated within TREMOD AV as described above.

Table 1: annual jet kerosene consumption during LTO-stage, in terajoules
1990 1995 2000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
14,495 19,930 23,190 26,795 28,015 29,359 30,037 28,888 29,932 31,475 31,213 30,812 31,295 32,384 33,403

Emission factors

All country specific emission factors used for emission reporting were basically ascertained within UBA project FKZ 360 16 029 [2] and have since then been compiled, revised and maintained in TREMOD AV [1].

For more details, see superordinate chapter on 1.A.3.a - Civil Aviation.

Table 2: Annual country-specific emission factors for jet kerosene, in kg/TJ
1990 1995 2000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
NH3 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00
NMVOC 73 72 47 33 32 30 30 26 23 24 23 20 19 18 18
NOx 289 284 284 292 293 296 298 304 310 310 314 319 321 323 326
SOx 25.1 15.2 8.5 6.3 5.9 5.5 5.1 4.7 4.7 4.7 4.7 4.7 4.7 4.7 4.7
PM 1 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16 2.16
BC 2 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04 1.04
CO 275 254 255 239 239 234 235 233 229 229 227 221 217 213 209

1 EF(TSP) also applied for PM10 and PM2.5 (assumption: > 99% of TSP consists of PM2.5)
2 estimated via a f-BC of 0.48 as provided in [3], Chapter: 1.A.3.a, 1.A.5.b Aviation, page 49: "Conclusion".

Discussion of emission trends

NFR 1.A.3.a i (i) - International Civil Aviation - LTO is no key category.

Recalculations

As mentioned in the superordinate chapter on 1.A.3.a, the 2015 inland kerosene deliveries were revised based on an updated National Energy Balance 2015.
In addition, the percentual shares for domestic flights (see superordinate chapter) and of kerosene consumed during L/TO were revised for 2014 and 2015 within TREMOD AV.

Table 3: Revised percentual share of kerosene consumed during L/TO for international flights, in %
2014 2015
Submission 2018 9.425 9.799
Submission 2017 9.422 9.422
absolute change 0.004 0.377
relative change 0.04% 4.00%

Hence, the amounts of kerosene allocated to sub-category 1.A.3.a i (i) were revised accordingly:

Table 4: Revised 2014 & 2015 kerosene usage in 1.A.3.a i (i), in terajoules
2014 2015
Submission 2018 31,295 32,384
Submission 2017 31,296 31,275
absolute change -0.2 1,109
relative change -0.001% 3.55%

Furthermore, several country-specific emission factor values for 2015 have been revised within TREMOD AV:

Table 5: Revised country-specific emission factors for 2015
NH3 NMVOC NOx SO2 PM CO
Submission 2018 4.00 18.11 323.42 4.65 2.16 213.11
Submission 2017 4.00 19.07 320.86 4.65 2.16 217.43
absolute change 0.00 -0.96 2.56 0.00 0.00 -4.31
relative change 0.00% -5.03% 0.80% 0.00% 0.00% -1.98%

For specific information on recalculated emssion estimates reported for Base Year and 2015, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.

Uncertainties

For uncertainties information, see main chapter 1.A.3.a - Civil Aviation.

Planned improvements

For information on planned improvements, see main chapter 1.A.3.a - Civil Aviation.


Bibliography
1. Ifeu & Öko-Institut, 2017: TREMOD AV 2017
2. Ifeu & Öko-Institut, 2012: Implementierung eines eigenständigen Moduls zur Berechnung des Flugverkehrs in das bestehende TREMOD-System, Endbericht zum F+E-Vorhaben 360 16 029, URL: https://www.umweltbundesamt.de/publikationen/entwicklung-eines-modells-zur-berechnung; Berlin & Heidelberg, November 2012
3. EMEP/EEA, 2016: EMEP/EEA air pollutant emission inventory guidebook – 2016
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