Zobrazeno 1 - 10
of 119
pro vyhledávání: '"H. Garny"'
Autor:
H. Garny, R. Eichinger, J. C. Laube, E. A. Ray, G. P. Stiller, H. Bönisch, L. Saunders, M. Linz
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 4193-4215 (2024)
Observational monitoring of the stratospheric transport circulation, the Brewer–Dobson circulation (BDC), is crucial to estimate any decadal to long-term changes therein, a prerequisite to interpret trends in stratospheric composition and to constr
Externí odkaz:
https://doaj.org/article/38a5b59debb04d6089533ac994852a0c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1389-1413 (2024)
Sudden stratospheric warmings (SSWs) are abrupt disturbances to the Northern Hemisphere wintertime stratospheric polar vortex that can lead to pronounced regional changes in surface temperature and precipitation. SSWs also strongly impact the distrib
Externí odkaz:
https://doaj.org/article/57550135516e453fa40696b9b0f02454
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
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 10661-10675 (2023)
Stratospheric ozone is important for both stratospheric and surface climate. In the lower stratosphere during winter, its variability is governed primarily by transport dynamics induced by wave–mean flow interactions. In this work, we analyze inter
Externí odkaz:
https://doaj.org/article/c4ac02ffb3264e75a6e69aee0fa53be1
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 15659-15683 (2022)
Air masses within the Asian monsoon anticyclone (AMA) show anomalous signatures in various trace gases. In this study, we investigate how air masses are transported from the planetary boundary layer (PBL) to the AMA based on multiannual trajectory an
Externí odkaz:
https://doaj.org/article/5c9ed52a11fb473c91f2d8d10c4f0467
Autor:
F. Ploeger, H. Garny
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 5559-5576 (2022)
The expected effect of ozone recovery on the stratospheric Brewer–Dobson circulation (BDC) is a slow-down, strongest in the Southern Hemisphere (SH). In contrast, the BDC has been found to weaken more strongly in the Northern Hemisphere (NH) relati
Externí odkaz:
https://doaj.org/article/13424848a2894734a488d4797f7a3e82
Autor:
S. Loeffel, R. Eichinger, H. Garny, T. Reddmann, F. Fritsch, S. Versick, G. Stiller, F. Haenel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 1175-1193 (2022)
Mean age of air (AoA) is a common diagnostic for the strength of the stratospheric overturning circulation in both climate models and observations. AoA climatologies and AoA trends over the recent decades of model simulations and proxies derived from
Externí odkaz:
https://doaj.org/article/1a5e27121d1c450489f2ba7c47a41329
Autor:
M. Abalos, N. Calvo, S. Benito-Barca, H. Garny, S. C. Hardiman, P. Lin, M. B. Andrews, N. Butchart, R. Garcia, C. Orbe, D. Saint-Martin, S. Watanabe, K. Yoshida
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13571-13591 (2021)
The Brewer–Dobson circulation (BDC) is a key feature of the stratosphere that models need to accurately represent in order to simulate surface climate variability and change adequately. For the first time, the Climate Model Intercomparison Project
Externí odkaz:
https://doaj.org/article/00ba4e7b607644f49f7badc6f680c236
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 6811-6837 (2021)
Recent observations show a significant decrease in lower-stratospheric (LS) ozone concentrations in tropical and mid-latitude regions since 1998. By analysing 31 chemistry climate model (CCM) simulations performed for the Chemistry Climate Model Init
Externí odkaz:
https://doaj.org/article/811aba23e3f14588beb313655f70c354
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 5229-5257 (2020)
As models of the Earth system grow in complexity, a need emerges to connect them with simplified systems through model hierarchies in order to improve process understanding. The Modular Earth Submodel System (MESSy) was developed to incorporate chemi
Externí odkaz:
https://doaj.org/article/0c8636a60b674ea882fcb410867d10d6