Zobrazeno 1 - 10
of 3 858
pro vyhledávání: '"P. Konopka"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 2033-2043 (2024)
Water vapour in the upper troposphere and lower stratosphere (UTLS) is a key radiative agent and a crucial factor in the Earth's climate system. Here, we investigate a common regional moist bias in the Pacific UTLS during Northern Hemisphere summer i
Externí odkaz:
https://doaj.org/article/9cf727ad438249fea8bbf584e7754941
Autor:
P. Konopka, C. Rolf, M. von Hobe, S. M. Khaykin, B. Clouser, E. Moyer, F. Ravegnani, F. D'Amato, S. Viciani, N. Spelten, A. Afchine, M. Krämer, F. Stroh, F. Ploeger
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12935-12947 (2023)
During the StratoClim Geophysica campaign, air with total water mixing ratios up to 200 ppmv and ozone up to 250 ppbv was observed within the Asian summer monsoon anticyclone up to 1.7 km above the local cold-point tropopause (CPT). To investigate th
Externí odkaz:
https://doaj.org/article/4fff99d919b346fd8d883474adc11500
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7589-7609 (2023)
Atmospheric convection plays a key role in tracer transport from the planetary boundary layer to the free troposphere. Lagrangian transport simulations driven by meteorological fields from global models or reanalysis products, such as the European Ce
Externí odkaz:
https://doaj.org/article/92b83ed83962490a8c4a197dd62dc3c1
Autor:
P. Konopka, M. Tao, M. von Hobe, L. Hoffmann, C. Kloss, F. Ravegnani, C. M. Volk, V. Lauther, A. Zahn, P. Hoor, F. Ploeger
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 7471-7487 (2022)
Pure Lagrangian, i.e., trajectory-based transport models, take into account only the resolved advective part of transport. That means neither mixing processes between the air parcels (APs) nor unresolved subgrid-scale advective processes like convect
Externí odkaz:
https://doaj.org/article/5410be560437456da2d1937c27b66ae1
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 3841-3860 (2022)
Air mass transport within the summertime Asian monsoon circulation provides a major source of anthropogenic pollution for the upper troposphere and lower stratosphere (UTLS). Here, we investigate the quasi-horizontal transport of air masses from the
Externí odkaz:
https://doaj.org/article/36a2bec6cf304fe08fcb5dcd9189d063
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 1059-1079 (2022)
Extreme convective events in the troposphere not only have immediate impacts on the surface, but they can also influence the dynamics and composition of the lower stratosphere (LS). One major impact is the moistening of the LS by overshooting convect
Externí odkaz:
https://doaj.org/article/11066c8ffb1b4889a2b9835fd6a80215
Autor:
L. Krasauskas, J. Ungermann, P. Preusse, F. Friedl-Vallon, A. Zahn, H. Ziereis, C. Rolf, F. Plöger, P. Konopka, B. Vogel, M. Riese
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 10249-10272 (2021)
This paper presents measurements of ozone, water vapour and nitric acid (HNO3) in the upper troposphere/lower stratosphere (UTLS) over North Atlantic and Europe. The measurements were acquired with the Gimballed Limb Observer for Radiance Imaging of
Externí odkaz:
https://doaj.org/article/841e6be4933e44c0922c18f741d1b313
Autor:
F. Ploeger, M. Diallo, E. Charlesworth, P. Konopka, B. Legras, J. C. Laube, J.-U. Grooß, G. Günther, A. Engel, M. Riese
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 8393-8412 (2021)
This paper investigates the global stratospheric Brewer–Dobson circulation (BDC) in the ERA5 meteorological reanalysis from the European Centre for Medium-Range Weather Forecasts (ECMWF). The analysis is based on simulations of stratospheric mean a
Externí odkaz:
https://doaj.org/article/ac6eee7bd1f94efc800b52aca9c3452c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 6627-6645 (2021)
Inter-hemispheric transport may strongly affect the trace gas composition of the atmosphere, especially in relation to anthropogenic emissions, which originate mainly in the Northern Hemisphere. This study investigates the transport from the boundary
Externí odkaz:
https://doaj.org/article/fb94ff0d92284b35b47c04791eee2043
Autor:
M. von Hobe, F. Ploeger, P. Konopka, C. Kloss, A. Ulanowski, V. Yushkov, F. Ravegnani, C. M. Volk, L. L. Pan, S. B. Honomichl, S. Tilmes, D. E. Kinnison, R. R. Garcia, J. S. Wright
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 1267-1285 (2021)
Every year during the Asian summer monsoon season from about mid-June to early September, a stable anticyclonic circulation system forms over the Himalayas. This Asian summer monsoon (ASM) anticyclone has been shown to promote transport of air into t
Externí odkaz:
https://doaj.org/article/81a5a427e6f94bd0a4f07430c4101adb