2024-02-01 オランダ・デルフト工科大学（TUDelft)
◆エスターの研究では、航空交通管理の観点から飛行機雲の軽減の可能性を分析しています。これは、わずかな高度調整で多数の飛行機雲の形成を防げた可能性があり、安全性や燃料効率を損なうことなく緩和戦略を提供できたことを実証している。
◆この研究は、CNS/ATMグループのJunzi Sun博士と Prof.dr.ir Jacco Hoekstra氏と共同で実施されています。
＜関連情報＞
- https://www.tudelft.nl/en/2024/lr/minimising-contrails-through-altitude-diversions-of-aircraft
- https://www.sciencedirect.com/science/article/pii/S2590198223002002?via%3Dihub
高度転換による飛行機雲の最小化： グローバルデータを活用した実証研究 Contrail minimization through altitude diversions: A feasibility study leveraging global data
Esther Roosenbrand, Junzi Sun, Jacco Hoekstra
Transportation Research Interdisciplinary Perspectives Available online:3 November 2023
DOI:https://doi.org/10.1016/j.trip.2023.100953
Highlights
•Global contrail formation assessed using OpenSky, Spire, and weather balloon data.
•Quantified altitude changes needed to prevent contrail formation.
•Strong geographical and seasonal influences on contrail-forming flights.
•Analysis addresses and refutes practicality concerns for altitude deviations.
•Half of altitude deviations safely possible within current aviation regulations.
Abstract
As global flight volume rises, the aviation industry is facing increasing climate challenges. One major factor is the impact of contrails, which trap outgoing terrestrial radiation and counteract emission reduction benefits from emission-optimized flight routes. Our study quantifies contrail-forming flights globally and assesses altitude adjustments necessary to avoid these regions. Using the Integrated Global Radiosonde Archive and global flight data from 2021-2022, we highlight several contrail-prone regions with high air traffic volumes and high potential for contrail-formation. We propose an operational strategy in altitude diversion, which can halve the amount of persistent contrails. Further, we analyse the additional carbon emissions caused by the altitude diversions and safety risks in terms of potential new conflicts. Our findings provide actionable strategies for policymakers to balance climate mitigation and operational challenges in aviation.
