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Global model simulations of the impact of the transport sectors on atmospheric aerosol and climate

Righi, Mattia and Hendricks, Johannes and Sausen, Robert (2013) Global model simulations of the impact of the transport sectors on atmospheric aerosol and climate. European Geosciences Union General Assembly 2013, 8-12 Apr 2013, Vienna, Austria. (Unpublished)

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Abstract

The transport sector, including land transport, shipping and aviation, is one of the major sources of tropospheric aerosol. Land transport, in particular, is a relevant source of pollution in highly populated areas (e.g. megacities), with significant impacts on climate and health. Transport emissions are expected to grow in the near future, especially in the developing countries. In this work we use the EMAC-MADE global aerosol model to quantify the impact of transport emissions on global aerosol, for both present-day (2000) and future (2030) scenarios. Number emissions are also included in the model and derived from mass emissions under different assumptions on the size distribution of particles emitted by the three transport modes. Additional sensitivity experiments are performed to quantify the effects of the uncertainties behind such assumptions. The model simulations reveal that land transport is the most important source of black carbon pollution in the densely populated regions of Eastern U.S. and Europe. High particle concentrations are simulated for Southeast Asian areas, although pollution in this region is mostly due to non-transport sources. Shipping strongly contributes to aerosol sulphate concentrations along the most-traveled routes of the Northern Atlantic and Northern Pacific oceans, with significant impact along the coastlines and nearby major harbors and with large effects on cloud properties. The impacts on particle number concentrations are very sensitive to the assumptions on size distribution of emitted particles, with the largest uncertainties simulated for the land transport sector. The model results further reveal significant climate impacts of transport-induced particles.

Item URL in elib:https://elib.dlr.de/84580/
Document Type:Conference or Workshop Item (Poster)
Title:Global model simulations of the impact of the transport sectors on atmospheric aerosol and climate
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Righi, MattiaMattia.Righi (at) dlr.deUNSPECIFIED
Hendricks, JohannesJohannes.Hendricks (at) dlr.deUNSPECIFIED
Sausen, Robertrobert.sausen (at) dlr.deUNSPECIFIED
Date:9 October 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:Aerosol Global modelling Transport impacts
Event Title:European Geosciences Union General Assembly 2013
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:8-12 Apr 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Verkehrsentwicklung und Umwelt (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Righi, Dr. Mattia
Deposited On:04 Nov 2013 09:32
Last Modified:04 Nov 2013 09:32

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