Zobrazeno 1 - 10
of 106
pro vyhledávání: '"R. Eichinger"'
Publikováno v:
Weather and Climate Dynamics, Vol 5, Pp 895-912 (2024)
The stratospheric polar vortex (SPV) comprises strong westerly winds during winter in each hemisphere. Despite ample knowledge on the SPV's high variability and its frequent disruptions by sudden stratospheric warmings (SSWs) in the Northern Hemisphe
Externí odkaz:
https://doaj.org/article/5a47cd62a5fe4d9f9fa9903e9577a6f6
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:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract Climate models robustly project acceleration of the Brewer‐Dobson circulation (BDC) in response to climate change. However, the BDC trends simulated by comprehensive models are poorly constrained by observations, which cannot even determin
Externí odkaz:
https://doaj.org/article/a8ee70a1168c4b67ae3a760c7d79b17c
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:
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
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:
Weather and Climate Dynamics, Vol 1, Pp 481-495 (2020)
When orographic gravity waves (OGWs) break, they dissipate their momentum and energy and thereby influence the thermal and dynamical structure of the atmosphere. This OGW forcing mainly takes place in the middle atmosphere. It is zonally asymmetric a
Externí odkaz:
https://doaj.org/article/8a3d8923111546e79547399978259d86
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 8709-8725 (2020)
Mean age of air (AoA) is a diagnostic of transport along the stratospheric Brewer–Dobson circulation. While models consistently show negative trends, long-term time series (1975–2016) of AoA derived from observations show non-significant positive
Externí odkaz:
https://doaj.org/article/0db1e19ecb0b446ebb600f1607e28f65
Autor:
S. Lossow, C. Högberg, F. Khosrawi, G. P. Stiller, R. Bauer, K. A. Walker, S. Kellmann, A. Linden, M. Kiefer, N. Glatthor, T. von Clarmann, D. P. Murtagh, J. Steinwagner, T. Röckmann, R. Eichinger
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 287-308 (2020)
The annual variation of δD in the tropical lower stratosphere is a critical indicator for the relative importance of different processes contributing to the transport of water vapour through the cold tropical tropopause region into the stratosphere.
Externí odkaz:
https://doaj.org/article/42470c6297ec4f449319089c6ddc13ba
Autor:
P. Šácha, R. Eichinger, H. Garny, P. Pišoft, S. Dietmüller, L. de la Torre, D. A. Plummer, P. Jöckel, O. Morgenstern, G. Zeng, N. Butchart, J. A. Añel
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 7627-7647 (2019)
Climate model simulations show an acceleration of the Brewer–Dobson circulation (BDC) in response to climate change. While the general mechanisms for the BDC strengthening are widely understood, there are still open questions concerning the influen
Externí odkaz:
https://doaj.org/article/72fec094a1bf403cbd8478e766552dc5