Zobrazeno 1 - 10
of 236
pro vyhledávání: '"I. Usoskin"'
Autor:
B. Funke, T. Dudok de Wit, I. Ermolli, M. Haberreiter, D. Kinnison, D. Marsh, H. Nesse, A. Seppälä, M. Sinnhuber, I. Usoskin
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1217-1227 (2024)
The solar forcing prepared for Phase 6 of the Coupled Model Intercomparison Project (CMIP6) has been used extensively in climate model experiments and has been tested in various intercomparison studies. Recently, an International Space Science Instit
Externí odkaz:
https://doaj.org/article/4e828940e3654067a7bcf76d1a95c01f
Autor:
M. Borthakur, M. Sinnhuber, A. Laeng, T. Reddmann, P. Braesicke, G. Stiller, T. von Clarmann, B. Funke, I. Usoskin, J. M. Wissing, O. Yakovchuk
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 12985-13013 (2023)
Solar coronal mass ejections can accelerate charged particles, mostly protons, to high energies, causing solar proton events (SPEs). Such energetic particles can precipitate upon the Earth's atmosphere, mostly in polar regions because of geomagnetic
Externí odkaz:
https://doaj.org/article/9fc4b76f68c04720b978ecf250d858c5
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6989-7000 (2023)
A possible impact of an extreme solar particle event (ESPE) on the middle atmosphere is studied for present-day climate and geomagnetic conditions. We consider an ESPE with an occurrence probability of about 1 per millennium. In addition, we assume t
Externí odkaz:
https://doaj.org/article/120898ab26274d9997288569b12ac1df
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 7605-7620 (2021)
The short-living cosmogenic isotope 7Be, which is produced by cosmic rays in the atmosphere, is often used as a tracer for atmospheric dynamics, with precise and high-resolution measurements covering the recent decades. The long-living isotope 10Be,
Externí odkaz:
https://doaj.org/article/8fec33ef545b4d26bb3a79e018e36ab5
Publikováno v:
Advances in Astronomy, Vol 2020 (2020)
Externí odkaz:
https://doaj.org/article/eb1ff5169a464d948cd1ed23325361ed
Autor:
J. Uusitalo, L. Arppe, T. Hackman, S. Helama, G. Kovaltsov, K. Mielikäinen, H. Mäkinen, P. Nöjd, V. Palonen, I. Usoskin, M. Oinonen
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Tree rings retain information of sudden variations of ancient radiocarbon (14C) content, however the origin and exact timing of these events often remain uncertain. Here, the authors analyze a set of Arctic tree rings and link a rapid increase in 14C
Externí odkaz:
https://doaj.org/article/f8b62c47718549669927d2ed53e32ab5
Autor:
K. Matthes, B. Funke, M. E. Andersson, L. Barnard, J. Beer, P. Charbonneau, M. A. Clilverd, T. Dudok de Wit, M. Haberreiter, A. Hendry, C. H. Jackman, M. Kretzschmar, T. Kruschke, M. Kunze, U. Langematz, D. R. Marsh, A. C. Maycock, S. Misios, C. J. Rodger, A. A. Scaife, A. Seppälä, M. Shangguan, M. Sinnhuber, K. Tourpali, I. Usoskin, M. van de Kamp, P. T. Verronen, S. Versick
Publikováno v:
Geoscientific Model Development, Vol 10, Pp 2247-2302 (2017)
This paper describes the recommended solar forcing dataset for CMIP6 and highlights changes with respect to CMIP5. The solar forcing is provided for radiative properties, namely total solar irradiance (TSI), solar spectral irradiance (SSI), and th
Externí odkaz:
https://doaj.org/article/5f1ec29214d040149670913739d5d5d2
Autor:
J. Uusitalo, L. Arppe, T. Hackman, S. Helama, G. Kovaltsov, K. Mielikäinen, H. Mäkinen, P. Nöjd, V. Palonen, I. Usoskin, M. Oinonen
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-2 (2019)
The authors became aware of a mistake in the data displayed in Fig. 1 and Supplementary Table 2 of the original version of the Article. Specifically, the 14C production values were printed out in the code before the conversion between the omnidirecti
Externí odkaz:
https://doaj.org/article/c3cc27e1907b475c88fa3ba773e88c69
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 9, Pp 4547-4556 (2011)
This study investigates the influence of the Galactic Cosmic Rays (GCRs) on the atmospheric composition, temperature and dynamics by means of the 3-D Chemistry Climate Model (CCM) SOCOL v2.0. Ionization rates were parameterized according to CRAC:CRII
Externí odkaz:
https://doaj.org/article/b497ad81dde34c6f8bf8e6458e19b730
Autor:
M. Kulmala, I. Riipinen, T. Nieminen, M. Hulkkonen, L. Sogacheva, H. E. Manninen, P. Paasonen, T. Petäjä, M. Dal Maso, P. P. Aalto, A. Viljanen, I. Usoskin, R. Vainio, S. Mirme, A. Mirme, A. Minikin, A. Petzold, U. Hõrrak, C. Plaß-Dülmer, W. Birmili, V.-M. Kerminen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 4, Pp 1885-1898 (2010)
Aerosol particles affect the Earth's radiative balance by directly scattering and absorbing solar radiation and, indirectly, through their activation into cloud droplets. Both effects are known with considerable uncertainty only, and translate into e
Externí odkaz:
https://doaj.org/article/18e3ec16d5734908aec1c0b19f6db994