Zobrazeno 1 - 10
of 765
pro vyhledávání: '"V, Hahn"'
Autor:
R. S. Märkl, C. Voigt, D. Sauer, R. K. Dischl, S. Kaufmann, T. Harlaß, V. Hahn, A. Roiger, C. Weiß-Rehm, U. Burkhardt, U. Schumann, A. Marsing, M. Scheibe, A. Dörnbrack, C. Renard, M. Gauthier, P. Swann, P. Madden, D. Luff, R. Sallinen, T. Schripp, P. Le Clercq
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 3813-3837 (2024)
Powering aircraft by sustainable aviation fuels (SAFs) is a pathway to reduce the climate impact of aviation by lowering aviation lifecycle CO2 emissions and by reducing ice crystal numbers and radiative forcing from contrails. While the effect of SA
Externí odkaz:
https://doaj.org/article/c12a484cee7341c491df0e54ac25612c
Autor:
Samuel King, Xinyi E. Chen, Sarah W. S. Ng, Kimia Rostin, Samuel V. Hahn, Tylo Roberts, Janella C. Schwab, Parneet Sekhon, Madina Kagieva, Taylor Reilly, Ruo Chen Qi, Paarsa Salman, Ryan J. Hong, Eric J. Ma, Steven J. Hallam
Publikováno v:
Frontiers in Systems Biology, Vol 4 (2024)
The emergence of SARS-CoV-2 variants during the COVID-19 pandemic caused frequent global outbreaks that confounded public health efforts across many jurisdictions, highlighting the need for better understanding and prediction of viral evolution. Pred
Externí odkaz:
https://doaj.org/article/011ef3ffa8dc455f8f0b6b1cdd7029fe
Autor:
E. De La Torre Castro, T. Jurkat-Witschas, A. Afchine, V. Grewe, V. Hahn, S. Kirschler, M. Krämer, J. Lucke, N. Spelten, H. Wernli, M. Zöger, C. Voigt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 13167-13189 (2023)
Despite their proven importance for the atmospheric radiative energy budget, the effect of cirrus on climate and the magnitude of their modification by human activity is not well quantified. Besides anthropogenic pollution sources on the ground, avia
Externí odkaz:
https://doaj.org/article/ffca93cdc62945b088acb2cfca8aa5dc
Autor:
S. Kirschler, C. Voigt, B. E. Anderson, G. Chen, E. C. Crosbie, R. A. Ferrare, V. Hahn, J. W. Hair, S. Kaufmann, R. H. Moore, D. Painemal, C. E. Robinson, K. J. Sanchez, A. J. Scarino, T. J. Shingler, M. A. Shook, K. L. Thornhill, E. L. Winstead, L. D. Ziemba, A. Sorooshian
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 10731-10750 (2023)
Due to their fast evolution and large natural variability in macro- and microphysical properties, the accurate representation of boundary layer clouds in current climate models remains a challenge. One of the regions with large intermodel spread in t
Externí odkaz:
https://doaj.org/article/ef0f35cb25da447b89671700d86e4263
Autor:
V. Hahn, R. Meerkötter, C. Voigt, S. Gisinger, D. Sauer, V. Catoire, V. Dreiling, H. Coe, C. Flamant, S. Kaufmann, J. Kleine, P. Knippertz, M. Moser, P. Rosenberg, H. Schlager, A. Schwarzenboeck, J. Taylor
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 8515-8530 (2023)
Reflection of solar radiation by tropical low-level clouds has an important cooling effect on climate and leads to decreases in surface temperatures. Still, the effect of pollution on ubiquitous tropical continental low-level clouds and the investiga
Externí odkaz:
https://doaj.org/article/3f0f2891716f4432b45d1c58d2c26fc8
Autor:
M. Moser, C. Voigt, T. Jurkat-Witschas, V. Hahn, G. Mioche, O. Jourdan, R. Dupuy, C. Gourbeyre, A. Schwarzenboeck, J. Lucke, Y. Boose, M. Mech, S. Borrmann, A. Ehrlich, A. Herber, C. Lüpkes, M. Wendisch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7257-7280 (2023)
Airborne in situ cloud measurements were carried out over the northern Fram Strait between Greenland and Svalbard in spring 2019 and summer 2020. In total, 811 min of low-level cloud observations were performed during 20 research flights above the se
Externí odkaz:
https://doaj.org/article/8281142456e54770946fd235596a75be
Autor:
J. Lucke, T. Jurkat-Witschas, R. Heller, V. Hahn, M. Hamman, W. Breitfuss, V. R. Bora, M. Moser, C. Voigt
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 7375-7394 (2022)
Supercooled large droplet (SLD) icing can occur behind the protected surfaces of an aircraft and create severe aerodynamic disturbances, which represent a safety hazard for aviation. Liquid water content (LWC) measurements in icing conditions that co
Externí odkaz:
https://doaj.org/article/975438eff9824a09bfc58473c892f669
Autor:
S. Kirschler, C. Voigt, B. Anderson, R. Campos Braga, G. Chen, A. F. Corral, E. Crosbie, H. Dadashazar, R. A. Ferrare, V. Hahn, J. Hendricks, S. Kaufmann, R. Moore, M. L. Pöhlker, C. Robinson, A. J. Scarino, D. Schollmayer, M. A. Shook, K. L. Thornhill, E. Winstead, L. D. Ziemba, A. Sorooshian
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 8299-8319 (2022)
To determine the impact of dynamic and aerosol processes on marine low clouds, we examine the seasonal impact of updraft speed w and cloud condensation nuclei concentration at 0.43 % supersaturation (NCCN0.43%) on the cloud droplet number concentrati
Externí odkaz:
https://doaj.org/article/3b3d57b926eb4a15900a764d9fd9bb93
Autor:
A. Deroubaix, L. Menut, C. Flamant, P. Knippertz, A. H. Fink, A. Batenburg, J. Brito, C. Denjean, C. Dione, R. Dupuy, V. Hahn, N. Kalthoff, F. Lohou, A. Schwarzenboeck, G. Siour, P. Tuccella, C. Voigt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 3251-3273 (2022)
During the West African summer monsoon, pollutants emitted in urbanized coastal areas modify cloud cover and precipitation patterns. The Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa (DACCIWA) field campaign provided numerous aircraft-
Externí odkaz:
https://doaj.org/article/8acfb3f58ff3475d92d3645d60414988
Autor:
T. Bräuer, C. Voigt, D. Sauer, S. Kaufmann, V. Hahn, M. Scheibe, H. Schlager, F. Huber, P. Le Clercq, R. H. Moore, B. E. Anderson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 16817-16826 (2021)
Sustainable aviation fuels can reduce contrail ice numbers and radiative forcing by contrail cirrus. We measured apparent ice emission indices for fuels with varying aromatic content at altitude ranges of 9.1–9.8 and 11.4–11.6 km. Measurement dat
Externí odkaz:
https://doaj.org/article/58378ba4fc74449286ce39a3473bf27e