Zobrazeno 1 - 10
of 3 578
pro vyhledávání: '"Gierens, A."'
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 6547-6568 (2024)
Cloud radar Doppler spectra are of particular interest for investigating cloud microphysical processes, such as ice formation, riming and ice multiplication. When hydrometeor types within a cloud radar observation volume have different terminal fall
Externí odkaz:
https://doaj.org/article/4805922b01a44d979eb15f3f9e283a70
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Ice saturation (and supersaturation) is a frequent phenomenon in cold regions of the upper troposphere. Its existence is essential for the formation of ice clouds and a necessary condition for the persistence of contrails. Its spatial and te
Externí odkaz:
https://doaj.org/article/64335d6df6e3467faeb4f0f6ba2b2014
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 7911-7925 (2024)
The total aviation effective radiative forcing is dominated by non-CO2 effects. The largest contributors to the non-CO2 effects are contrails and contrail cirrus. There is the possibility of reducing the climate effect of aviation by avoiding flying
Externí odkaz:
https://doaj.org/article/75e03b581f31433fb2620a2df726aa21
Autor:
Robert Sausen, Sina Hofer, Klaus Gierens, Luca Bugliaro, Rüdiger Ehrmanntraut, Ilona Sitova, Kacper Walczak, Anja Burridge-Diesing, Milena Bowman, Nick Miller
Publikováno v:
Meteorologische Zeitschrift, Vol 33, Iss 1, Pp 83-98 (2024)
This paper describes the first-ever operational contrail avoidance trial in the real world, which took place in the region of Maastricht Upper Area Control (including the northwest of Germany, the Benelux countries and part of the North Sea) in the y
Externí odkaz:
https://doaj.org/article/4f97e6c23af24915a04ae1ace2741973
Publikováno v:
Meteorologische Zeitschrift, Vol 33, Iss 1, Pp 43-49 (2024)
In order to counteract global warming, the European Green Deal was made to improve the journey to a sustainable future. This also has an impact on aviation, because in the future the growth in air traffic must no longer lead to rising emissions, but
Externí odkaz:
https://doaj.org/article/76bceb3339c9487aa9da1e580aef3e9b
Autor:
Klaus Gierens
Publikováno v:
Meteorologische Zeitschrift, Vol 33, Iss 1, Pp 51-54 (2024)
We present a formulation for calculations of photon transmission for random cloud stacks (maximum-random overlap) that can be applied in contrail avoidance experiments, for instance. Other applications are not excluded. In contrail avoidance experime
Externí odkaz:
https://doaj.org/article/773ee607965f4d4eb6a28fa9258426d2
Autor:
Wachsmuth, Svenja, Hauser, Luca-Lars, Gierens, Fee C., Wolf, Svenja A., Hermann, Hans-Dieter, Höner, Oliver
Publikováno v:
In Psychology of Sport & Exercise January 2025 76
Autor:
D. Sperber, K. Gierens
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15609-15627 (2023)
A significant share of aviation's climate impact is due to persistent contrails. Thus, avoiding the creation of contrails that exert a warming impact is a crucial step in approaching the goal of sustainable air transportation. For this purpose, a rel
Externí odkaz:
https://doaj.org/article/bd81c90669124cb581130e86757bdc22
Autor:
G. Chellini, R. Gierens, K. Ebell, T. Kiszler, P. Krobot, A. Myagkov, V. Schemann, S. Kneifel
Publikováno v:
Earth System Science Data, Vol 15, Pp 5427-5448 (2023)
We present a comprehensive quality-controlled 15-month dataset of remote sensing observations of low-level mixed-phase clouds (LLMPCs) taken at the high Arctic site of Ny-Ålesund, Svalbard, Norway. LLMPCs occur frequently in the Arctic region and ex
Externí odkaz:
https://doaj.org/article/e881462da5424f0387c62fdec0f0ae6c
