Zobrazeno 1 - 10
of 23
pro vyhledávání: '"T P, de Wit"'
Autor:
S. C. Chapman, T. Dudok de Wit
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract The variable solar cycle of activity is a long-standing problem in physics. It modulates the overall level of space weather activity at earth, which in turn can have significant societal impact. The Hilbert transform of the sunspot number is
Externí odkaz:
https://doaj.org/article/a48ce4fc5cc4408fbe466827f3e965f3
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:
Nooshin Davis, B. D. G. Chandran, T. A. Bowen, S. T. Badman, T. Dudok de Wit, C. H. K. Chen, S. D. Bale, Zesen Huang, Nikos Sioulas, Marco Velli
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 154 (2023)
The power spectrum of magnetic field fluctuations in the fast solar wind ( V _SW > 500 km s ^−1 ) at magnetohydrodynamic scales is characterized by two different power laws on either side of a break frequency f _b . The low-frequency range at frequ
Externí odkaz:
https://doaj.org/article/e44033fcd63c44ecadd8f54e97b407d8
Autor:
S. Karbashewski, O. V. Agapitov, H. Y. Kim, F. S. Mozer, J. W. Bonnell, C. Froment, T. Dudok de Wit, Stuart D. Bale, D. Malaspina, N. E. Raouafi
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 2, p 73 (2023)
Observations of the young solar wind by the Parker Solar Probe (PSP) mission reveal the existence of intense plasma wave bursts with frequencies between 0.05 and 0.20 f _ce (tens of hertz up to ∼300 Hz) in the spacecraft frame. The wave bursts are
Externí odkaz:
https://doaj.org/article/6d1f596ccc6e4292a809664cdd35874d
Publikováno v:
EJNMMI Physics, Vol 5, Iss 1, Pp 1-14 (2018)
Abstract Background Single-photon emission computed tomography (SPECT) imaging is an important diagnostic tool for the early detection of the loss of nigrostriatal dopaminergic neurons in Parkinson’s disease (PD) and similar neurodegenerative disor
Externí odkaz:
https://doaj.org/article/0eac289bf8144bf08cc498826bbac8ff
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:
I. Ermolli, K. Matthes, T. Dudok de Wit, N. A. Krivova, K. Tourpali, M. Weber, Y. C. Unruh, L. Gray, U. Langematz, P. Pilewskie, E. Rozanov, W. Schmutz, A. Shapiro, S. K. Solanki, T. N. Woods
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 8, Pp 3945-3977 (2013)
The lack of long and reliable time series of solar spectral irradiance (SSI) measurements makes an accurate quantification of solar contributions to recent climate change difficult. Whereas earlier SSI observations and models provided a qualitatively
Externí odkaz:
https://doaj.org/article/ed5de5fd9d8f42bfb5b7ed19e765a799
Publikováno v:
Annales Geophysicae, Vol 29, Pp 613-617 (2011)
The propagation of Langmuir waves in plasmas is known to be sensitive to density fluctuations. Such fluctuations may lead to the coexistence of wave pairs that have almost opposite wave-numbers in the vicinity of their reflection points. Using hig
Externí odkaz:
https://doaj.org/article/c4f67888d3d448278629b288fea273cf
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2899-2910 (2008)
A new method for remote sensing of the quasiperpendicular part of the bow shock surface is presented. The method is based on analysis of high frequency electric field fluctuations corresponding to Langmuir, upshifted, and downshifted oscillations
Externí odkaz:
https://doaj.org/article/35876d97155e40c08ab52d3763649cde
Autor:
J. Lilensten, T. Dudok de Wit, M. Kretzschmar, P.-O. Amblard, S. Moussaoui, J. Aboudarham, F. Auchère
Publikováno v:
Annales Geophysicae, Vol 26, Pp 269-279 (2008)
The solar XUV-EUV flux is the main energy source in the terrestrial diurnal thermosphere: it produces ionization, dissociation, excitation and heating. Accurate knowledge of this flux is of prime importance for space weather. We first list the spa
Externí odkaz:
https://doaj.org/article/43be9075a65349e685918080307696b0