Zobrazeno 1 - 10
of 623
pro vyhledávání: '"A. Kerkweg"'
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 2597-2615 (2024)
Aqueous-phase chemical processes in clouds, fog, and deliquescent aerosols are known to alter atmospheric composition and acidity significantly. Traditionally, global and regional models predict aerosol composition by relying on thermodynamic equilib
Externí odkaz:
https://doaj.org/article/29ec3ca95f4a42f5be989b2d9a87b7bd
Autor:
R. Eichinger, S. Rhode, H. Garny, P. Preusse, P. Pisoft, A. Kuchař, P. Jöckel, A. Kerkweg, B. Kern
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 5561-5583 (2023)
The columnar approach of gravity wave (GW) parameterisations in weather and climate models has been identified as a potential reason for dynamical biases in middle-atmospheric dynamics. For example, GW momentum flux (GWMF) discrepancies between model
Externí odkaz:
https://doaj.org/article/0b844767772a476d953226f5d1d14d43
Autor:
V. Kumar, J. Remmers, S. Beirle, J. Fallmann, A. Kerkweg, J. Lelieveld, M. Mertens, A. Pozzer, B. Steil, M. Barra, H. Tost, T. Wagner
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 5241-5269 (2021)
We present high spatial resolution (up to 2.2×2.2 km2) simulations focussed over south-west Germany using the online coupled regional atmospheric chemistry model system MECO(n) (MESSy-fied ECHAM and COSMO models nested n times). Numerical simulation
Externí odkaz:
https://doaj.org/article/8b21c859f11f4655baad94d0659758e3
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 495-519 (2021)
Dry deposition to vegetation is a major sink of ground-level ozone and is responsible for about 20 % of the total tropospheric ozone loss. Its parameterization in atmospheric chemistry models represents a significant source of uncertainty for the glo
Externí odkaz:
https://doaj.org/article/2e02d6b785974b0bb3e0ce5182b0cbe7
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 7843-7873 (2020)
Land transport is an important emission source of nitrogen oxides, carbon monoxide, and volatile organic compounds. The emissions of nitrogen oxides affect air quality directly. Further, all of these emissions serve as a precursor for the formation o
Externí odkaz:
https://doaj.org/article/d06426d0cccb40f196bf69543e797b76
Autor:
A.-L. Nickl, M. Mertens, A. Roiger, A. Fix, A. Amediek, A. Fiehn, C. Gerbig, M. Galkowski, A. Kerkweg, T. Klausner, M. Eckl, P. Jöckel
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 1925-1943 (2020)
Methane is the second most important greenhouse gas in terms of anthropogenic radiative forcing. Since pre-industrial times, the globally averaged dry mole fraction of methane in the atmosphere has increased considerably. Emissions from coal mining a
Externí odkaz:
https://doaj.org/article/f4b0753a02944893ba4c9433f91f6b26
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 363-383 (2020)
Anthropogenic and natural emissions influence the tropospheric ozone budget, thereby affecting air quality and climate. To study the influence of different emission sources on the ozone budget, often source apportionment studies with a tagged tracer
Externí odkaz:
https://doaj.org/article/95156cc1550d4767bf89b3e931fe475d
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 1059-1076 (2018)
As part of the Modular Earth Submodel System (MESSy), the Multi-Model-Driver (MMD v1.0) was developed to couple online the regional Consortium for Small-scale Modeling (COSMO) model into a driving model, which can be either the regional COSMO mode
Externí odkaz:
https://doaj.org/article/6cce2b990b8e46f39622490ef065ffc9
Publikováno v:
Geoscientific Model Development, Vol 9, Iss 10, Pp 3545-3567 (2016)
For the first time, a simulation incorporating tropospheric and stratospheric chemistry using the newly developed MECO(n) model system is performed. MECO(n) is short for MESSy-fied ECHAM and COSMO models nested n times. It features an online coupling
Externí odkaz:
https://doaj.org/article/85399a5c06384eeab849ede73deecd63
Autor:
P. Jöckel, H. Tost, A. Pozzer, M. Kunze, O. Kirner, C. A. M. Brenninkmeijer, S. Brinkop, D. S. Cai, C. Dyroff, J. Eckstein, F. Frank, H. Garny, K.-D. Gottschaldt, P. Graf, V. Grewe, A. Kerkweg, B. Kern, S. Matthes, M. Mertens, S. Meul, M. Neumaier, M. Nützel, S. Oberländer-Hayn, R. Ruhnke, T. Runde, R. Sander, D. Scharffe, A. Zahn
Publikováno v:
Geoscientific Model Development, Vol 9, Iss 3, Pp 1153-1200 (2016)
Three types of reference simulations, as recommended by the Chemistry–Climate Model Initiative (CCMI), have been performed with version 2.51 of the European Centre for Medium-Range Weather Forecasts – Hamburg (ECHAM)/Modular Earth Submodel System
Externí odkaz:
https://doaj.org/article/de431a7af0fb4ce88d1b1c5b1335bfc7