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Process-oriented analysis of aircraft soot-cirrus interactions constrains the climate impact of aviation

Kärcher, Bernd and Mahrt, Fabian and Marcolli, Claudia (2021) Process-oriented analysis of aircraft soot-cirrus interactions constrains the climate impact of aviation. Communications Earth & Environment, pp. 1-20. Springer Nature. doi: 10.1038/s43247-021-00175-x. ISSN 2662-4435.

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Official URL: https://www.nature.com/articles/s43247-021-00175-x

Abstract

Fully accounting for the climate impact of aviation requires a process-level understanding of the impact of aircraft soot particle emissions on the formation of ice clouds. Assessing this impact with the help of global climate models remains elusive and direct observations are lacking. Here we use a high-resolution cirrus column model to investigate how aircraftemitted soot particles, released after ice crystals sublimate at the end of the lifetime of contrails and contrail cirrus, perturb the formation of cirrus. By allying cloud simulations with a measurement-based description of soot-induced ice formation, we find that only a small fraction (<1%) of the soot particles succeeds in forming cloud ice alongside homogeneous freezing of liquid aerosol droplets.

Item URL in elib:https://elib.dlr.de/142915/
Document Type:Article
Title:Process-oriented analysis of aircraft soot-cirrus interactions constrains the climate impact of aviation
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kärcher, BerndDLR, IPAhttps://orcid.org/0000-0003-0278-4980UNSPECIFIED
Mahrt, FabianUniversity of British Columbia, CNUNSPECIFIEDUNSPECIFIED
Marcolli, ClaudiaIAC, ETH ZurichUNSPECIFIEDUNSPECIFIED
Date:17 June 2021
Journal or Publication Title:Communications Earth & Environment
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1038/s43247-021-00175-x
Page Range:pp. 1-20
Publisher:Springer Nature
ISSN:2662-4435
Status:Published
Keywords:aviation, climate impact, soot emissions, contrails, cirrus
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Kärcher, Prof. Bernd
Deposited On:06 Jul 2021 11:27
Last Modified:24 May 2022 23:47

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