WP1 - State of the Art

The objective of this work package is to provide an overview of the state of the art on the scientific background of the relation between aircraft design and its climate impact. In order to achieve this overall objective, the following more detailed objectives have to be accomplished:

  • Analysis of previous research related to the overall climate impact of aviation.
  • Analysis of previous research on climate impact metrics, corresponding temporal scales and their application to different problems.
  • Analysis of previous research on the sensitivity of the overall climate impact with regard to operating parameters such as cruise speed and altitude, as well as on the analysis of the interaction between atmospheric conditions and operating parameters.
  • Analysis of previous research on aircraft design optimization studies regarding climate impact reduction.

The description of the state of the art on the relation between aircraft design and climate impact is split into four tasks, which represent four key areas in atmospheric and aircraft design research and reflect both the individual competences of the consortium and the four detailed objectives.

A literature review will be performed to analyse and summarise previous research related to the overall climate impact of aviation. Special emphasis is given on non-CO2 effects, such as stemming from emissions of nitrogen oxides, water vapour, particulate matters, as well as contrail, and contrail-cirrus effects.

Previous research on climate metrics will be analysed, identifying the range of metrics the impact of a metrics choice
on the results and on how to use the climate metrics, linking climate metrics to specific climate targets.

A literature review will be performed in order to analyse the sensitivity of the overall climate impact with with regard
to operating parameters such as cruise altitude and speed. Additionally, previous research focusing on the interaction
between atmospheric conditions, resulting climate sensitivities and potential operational strategies avoiding climate
sensitive regions is considered (e.g. lateral rerouting, altitude adaptions). The literature review will contain the findings
from previous projects such as CATS, REACT4C, ATM4E, and WeCare.

A literature review will be performed on research focussing on aircraft design studies, which include climate impact
assessments or even optimisations.