1.A.3.a ii (ii) - Domestic Civil Aviation: Cruise

Last updated on 14 Mar 2018 08:44 (cf. Authors)

Short description

NFR-Code Name of Category Method AD EF Key Category 1
1.A.3.a ii (ii) Domestic Civil Aviation: Cruise T1, T2, T3 NS, M CS, D, M not included in key category analysis

In NFR category 1.A.3.a ii (ii) - Domestic Civil Aviation: Cruise emissions from domestic flights between German airports during cruise stage (above 3,000 feet of altitude) are reported.

In the following, information on sub-category specific activity data, (implied) emission factors and emission estimates are provided.

Method

Actitvity Data

Specific annual jet kerosene consumptions during cruise-stage are calculated within TREMOD AV as described in the superordinate chapter on 1.A.3.a - Civil Aviation.

Table 1: annual jet kerosene consumption during cruise-stage, in terajoules
1990 1995 2000 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
19,810 21,518 24,801 23,234 23,882 24,651 24,989 23,698 23,500 23,752 22,424 20,452 20,766 21,541 22,082

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, 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 11.3 12.0 12.3 11.0 9.61 8.96 9.01 8.94 8.84 8.58 8.56 9.33 9.48 9.44 8.49
NOx 373 371 380 362 360 369 386 395 401 400 406 420 421 424 431
SOx 25.1 15.2 8.5 6.34 5.92 5.50 5.07 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65
PM 1 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65 4.65
BC 2 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23 2.23
CO 98 102 100 87 86 81 80 83 85 86 83 74 75 82 77

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".

Trend discussion for Key Sources

NFR 1.A.3.a ii (ii) - Domestic Civil Aviation - Cruise is not included in the national emission totals and hence not included in the key category analysis.

Recalculations

Activity data:

As mentioned in the superordinate chapter on 1.A.3.a, the percentual shares of kerosene consumed during L/TO were revised for 2014 and 2015 within TREMOD AV.
In addition, the percentual shares of kerosene consumed during L/TO were revised for 2014 and 2015.

Hence, the amount of kerosene allocated to sub-category 1.A.3.a ii (ii) had to be revised accordingly:

Table 3: Revised 2014 & 2015 kerosene consumption in 1.A.3.a ii (ii), in terajoules
2014 2015
Submission 2018 20,766 21,541
Submission 2017 20,701 20,701
absolute change 65 840
relative change 0.31% 4.06%

Emission factors:

Several country-specific EF values for have been revised within TREMOD AV for 2014 and 2015:

Table 4: Revised 2014 & 2015 emission-factor values, in [kg/TJ]
2014 2015
NMVOC
Submission 2018 9.477 9.436
Submission 2017 9.370 9.370
absolute change 0.107 0.066
relative change 1.14% 0.71%
NOx
Submission 2018 421.04 424.15
Submission 2017 421.89 421.89
absolute change -0.86 2.26
relative change -0.20% 0.53%
CO
Submission 2018 75.13 81.76
Submission 2017 74.52 74.52
absolute change 0.61 7.24
relative change 0.81% 9.71%

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
URL: http://www.bafa.de/bafa/de/energie/mineraloel_rohoel/amtliche_mineraloeldaten/index.html, (Aufruf: 10.11.2017), Eschborn.
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, Copenhagen, 2016
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