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New insights into nucleation, life cycle and climate impact of contrail cirrus

Voigt, Christiane (2015) New insights into nucleation, life cycle and climate impact of contrail cirrus. In: Annual Fall Meeting of the American Geophysical Union (ISSN: 0377-0273) (A11S-0). Americal Geosciences Union Fall Meeting 2015, 2015-12-14 - 2015-12-18, San Francisco. ISSN 0377-0273.

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Official URL: https://agu.confex.com/agu/fm15


Current growth rates in aviation demand a profound scientific data base in order to accurately assess the aviation impact on climate. A major contribution results from contrail cirrus and their radiative forcing is suggested to outbalance aviation CO2 and NOx effects. Direct observations of contrail cirrus throughout their life cycle are scarce and prone to substantial ambiguities currently limiting our understanding of the climate impact by aviation. Here, we give new insights into the nucleation, growth, life cycle and climate impact from contrail cirrus based on results from suite of aircraft experiments. NASA’s ACCESSII mission focusses on aircraft emissions and initial stages of contrail formation. Nascent contrails were detected at cruise altitudes near 100 m distance to the engine exit. Contrail growth to 10-min contrail age is investigated during DLR’s CONCERT campaigns. Finally, the objective of ML-CIRRUS with the HALO research aircraft is to study the life cycle and climate impact of contrail cirrus with a novel in-situ/remote sensing payload. The contrail measurements are related to previous observations and discussed in the context of recent developments in contrail modeling. Highlights include the quantification of the effects of aircraft type, engine technology and alternative fuels on contrail microphysics and climate.

Item URL in elib:https://elib.dlr.de/100314/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Abstract Number A11S-02
Title:New insights into nucleation, life cycle and climate impact of contrail cirrus
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Journal or Publication Title:Annual Fall Meeting of the American Geophysical Union (ISSN: 0377-0273)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:contrail, cirrus, climate
Event Title:Americal Geosciences Union Fall Meeting 2015
Event Location:San Francisco
Event Type:international Conference
Event Start Date:14 December 2015
Event End Date:18 December 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Voigt, Dr.rer.nat. Christiane
Deposited On:04 Dec 2015 07:01
Last Modified:24 Apr 2024 20:05

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