Searched for: author%3A%22Matthes%2C+Sigrun%22
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Thor, Robin N. (author), Mertens, M. (author), Matthes, Sigrun (author), Righi, Mattia (author), Hendricks, Johannes (author), Brinkop, Sabine (author), Graf, Phoebe (author), Grewe, V. (author), Jöckel, Patrick (author), Smith, Steven (author)
We report on an inconsistency in the latitudinal distribution of aviation emissions between the data products of phases 5 and 6 of the Coupled Model Intercomparison Project (CMIP). Emissions in the CMIP6 data occur at higher latitudes than in the CMIP5 data for all scenarios, years, and emitted species. A comparative simulation with the...
journal article 2023
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Simorgh, Abolfazl (author), Soler, Manuel (author), González-Arribas, Daniel (author), Matthes, Sigrun (author), Grewe, V. (author), Dietmüller, Simone (author), Baumann, Sabine (author), Yin, F. (author), Castino, F. (author)
The strong growth rate of the aviation industry in recent years has created significant challenges in terms of environmental impact. Air traffic contributes to climate change through the emission of carbon dioxide (CO<sub>2</sub>) and other non-CO<sub>2</sub> effects, and the associated climate impact is expected to soar further. The...
review 2022
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Rao, P.V. (author), Yin, F. (author), Grewe, V. (author), Yamashita, Hiroshi (author), Jöckel, Patrick (author), Matthes, Sigrun (author), Mertens, Mariano (author), Frömming, Christine (author)
One possibility to reduce the climate impact of aviation is the avoidance of climate-sensitive regions, which is synonymous with climate-optimised flight planning. Those regions can be identified by algorithmic Climate Change Functions (aCCFs) for nitrogen oxides (NOx), water vapour (H2O) as well as contrail cirrus, which provide a measure of...
journal article 2022
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Rao, P.V. (author), Yin, F. (author), Grewe, V. (author), Yamashita, Hiroshi (author), Jöckel, Patrick (author), Matthes, Sigrun (author), Mertens, Mariano (author), Frömming, Christine (author)
Aviation contributes to 3.5% of anthropogenic climate change in terms of Effective Radiative Forcing (ERF) and 5% in terms of temperature change. Aviation climate impact is expected to increase rapidly due to the growth of air transport sector in most regions of the world and the effects of the COVID-19 pandemic are expected to only have a...
abstract 2022
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Marks, Tobias (author), Dahlmann, Katrin (author), Grewe, V. (author), Gollnick, Volker (author), Linke, Florian (author), Matthes, Sigrun (author), Stumpf, Eike (author), Swaid, Majed (author), Unterstrasser, Simon (author)
The aerodynamic formation flight, which is also known as aircraft wake-surfing for efficiency (AWSE), enables aircraft to harvest the energy inherent in another aircraft’s wake vortex. As the thrust of the trailing aircraft can be reduced during cruise flight, the resulting benefit can be traded for longer flight time, larger range, less fuel...
journal article 2021
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Matthes, Sigrun (author), Lim, Ling (author), Burkhardt, Ulrike (author), Dahlmann, Katrin (author), Dietmüller, Simone (author), Grewe, V. (author), Haslerud, Amund S. (author), Hendricks, Johannes (author), Owen, Bethan (author), Pitari, Giovanni (author), Righi, Mattia (author), Skowron, Agnieszka (author)
Aviation is seeking for ways to reduce its climate impact caused by CO<sub>2</sub> emissions and non-CO<sub>2</sub> effects. Operational measures which change overall flight altitude have the potential to reduce climate impact of individual effects, comprising CO<sub>2</sub> but in particular non-CO<sub>2</sub> effects. We study the impact of...
journal article 2021
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Yamashita, Hiroshi (author), Yin, F. (author), Grewe, V. (author), Jöckel, Patrick (author), Matthes, Sigrun (author), Kern, Bastian (author), Dahlmann, Katrin (author), Frömming, Christine (author)
Climate-optimized routing is an operational measure to effectively reduce the climate impact of aviation with a slight increase in aircraft operating costs. This study examined variations in the flight characteristics among five aircraft routing strategies and discusses several characteristics of those routing strategies concerning typical...
journal article 2021
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Lührs, Benjamin (author), Linke, Florian (author), Matthes, Sigrun (author), Grewe, V. (author), Yin, F. (author)
Air traffic contributes to anthropogenic global warming by about 5% due to CO<sub>2</sub> emissions and non-CO<sub>2</sub> effects, which are primarily caused by the emission of NO<sub>x</sub> and water vapor as well as the formation of contrails. Since-in the long term-the aviation industry is expected to maintain its trend to grow,...
journal article 2021
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Frömming, Christine (author), Grewe, V. (author), Brinkop, Sabine (author), Jöckel, Patrick (author), Haslerud, Amund S. (author), Rosanka, Simon (author), Van Manen, Jesper (author), Matthes, Sigrun (author)
Emissions of aviation include CO2, H2O, NOx, sulfur oxides, and soot. Many studies have investigated the annual mean climate impact of aviation emissions. While CO2 has a long atmospheric residence time and is almost uniformly distributed in the atmosphere, non-CO2 gases and particles and their products have short atmospheric residence times...
journal article 2021
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Mertens, Mariano (author), Jöckel, Patrick (author), Matthes, Sigrun (author), Nützel, Matthias (author), Grewe, V. (author), Sausen, Robert (author)
The recent COVID-19 pandemic with its countermeasures, e.g. lock-downs, resulted in decreases in emissions of various trace gases. Here we investigate the changes of ozone over Europe associated with these emission reductions using a coupled global/regional chemistry climate model. We conducted and analysed a business as usual and a...
journal article 2021
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Castino, F. (author), Yin, F. (author), Grewe, V. (author), Soler, Manuel (author), Simorgh, Abolfazl (author), Yamashita, Hiroshi (author), Matthes, Sigrun (author), Baumann, Sabine (author), Linke, Florian (author)
Air traffic contributes to global warming through CO2 and non-CO2 effects, including the impact of NOx emissions on atmospheric ozone and methane, formation of contrails, and changes in the amount of stratospheric water vapour. The climate impact of non-CO2 effects is highly dependent on the background atmospheric conditions at the time and...
conference paper 2021
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Grewe, V. (author), Matthes, Sigrun (author), Dahlmann, K. (author)
The contribution of aviation to anthropogenic climate change results from CO2 and non-CO2 emissions. Latter comprises emissions of nitrogen oxides, water vapour, and aerosols as well as contrail and contrail-cirrus effects. A series of updates can be noted in recent studies related to the effects of NOx-emissions; the inclusion of two physical...
abstract 2020
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Frömming, C. (author), Grewe, V. (author), Brinkop, S. (author), Haslerud, Amund S. (author), Rosanka, S. (author), Matthes, Sigrun (author), van Manen, J. (author)
Emissions of aviation include CO2, H2O, NOx and particles. While CO2 has a long atmospheric residence time and is uniformly distributed in the atmosphere, non-CO2 gases, particles and their products have short atmospheric residence times and are heterogeneously distributed. Their climate effects depend on chemical and meteorological background...
abstract 2020
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Lührs, Benjamin (author), Linke, F. (author), Matthes, Sigrun (author), Grewe, V. (author), Yin, F. (author), Shine, K.P. (author)
Air traffic contributes to anthropogenic global warming by about 5% due to CO2 emissions (about 1/3) and non-CO2 effects (about 2/3) primarily caused by emissions of NOx and water vapour as well as the formation of contrails. Since aviation is expected to maintain its trend to grow over the next decades, mitigation measures are required...
abstract 2020
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Yamashita, H. (author), Yin, F. (author), Grewe, V. (author), Jockel, P. (author), Matthes, Sigrun (author), Kern, Bastian (author), Dahlmann, K. (author), Frömming, C. (author)
A climate-optimized routing is expected as an operational measure to reduce the climate impact of aviation, whereas this routing causes extra aircraft operating costs. This study performs some air traffic simulations of nine aircraft routing strategies which include the climate-optimized routing, and examines characteristics of those routings. A...
abstract 2020
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Dahlmann, K. (author), Matthes, Sigrun (author), Yamashita, H. (author), Unterstrasser, S. (author), Grewe, V. (author), Marks, Tobias (author)
An operational measure to aim for mitigation of aviation climate impact that is inspired by migrant birds is to fly in aerodynamic formation. This operational measure adapted to human aircraft would eventually save fuel and is, therefore, expected to reduce the climate impact of aviation. As this method changes beside the total emission also the...
abstract 2020
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Matthes, Sigrun (author), Lührs, Benjamin (author), Dahlmann, K. (author), Linke, F. (author), Grewe, V. (author), Yin, F. (author), Shine, K.P. (author)
Aviation can reduce its climate impact by controlling its CO2-emission and non-CO2 effects, e.g. aviation-induced contrail-cirrus and ozone caused by nitrogen oxide emissions. One option is the implementation of operational measures which aim to avoid those atmospheric regions that are in particular sensitive to non-CO2 aviation effects, e.g....
abstract 2020
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Yamashita, Hiroshi (author), Yin, F. (author), Grewe, V. (author), Jöckel, Partrick (author), Matthes, Sigrun (author), Kern, B. (author), Dahlmann, Katrin (author), Frömming, Christine (author)
Aviation contributes to climate change, and the climate impact of aviation is expected to increase further. Adaptations of aircraft routings in order to reduce the climate impact are an important climate change mitigation measure. The air traffic simulator AirTraf, as a submodel of the European Center HAMburg general circulation model (ECHAM)...
journal article 2020
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Matthes, Sigrun (author), Lührs, Benjamin (author), Dahlmann, Katrin (author), Grewe, V. (author), Linke, Florian (author), Yin, F. (author), Klingaman, Emma (author), Shine, Keith P. (author)
Aviation can reduce its climate impact by controlling its CO<sub>2</sub>-emission and non-CO<sub>2</sub> effects, e.g., aviation-induced contrail-cirrus and ozone caused by nitrogen oxide emissions. One option is the implementation of operational measures that aim to avoid those atmospheric regions that are in particular sensitive to non-CO...
journal article 2020
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Dahlmann, Katrin (author), Matthes, Sigrun (author), Yamashita, Hiroshi (author), Unterstrasser, Simon (author), Grewe, V. (author), Marks, Tobias (author)
An operational measure that is inspired by migrant birds aiming toward the mitigation of aviation climate impact is to fly in aerodynamic formation. When this operational measure is adapted to commercial aircraft it saves fuel and is, therefore, expected to reduce the climate impact of aviation. Besides the total emission amount, this...
journal article 2020
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