Zobrazeno 1 - 10
of 254
pro vyhledávání: '"N. Østgaard"'
Autor:
S. Sembay, A. L. Alme, D. Agnolon, T. Arnold, A. Beardmore, A. Belén Balado Margeli, C. Bicknell, C. Bouldin, G. Branduardi-Raymont, T. Crawford, J. P. Breuer, T. Buggey, G. Butcher, R. Canchal, J. A. Carter, A. Cheney, Y. Collado-Vega, H. Connor, N. Eaton, C. Feldman, C. Forsyth, T. Frantzen, G. Galgóczi, J. Garcia, G. Y. Genov, C. Gordillo, H-P. Gröbelbauer, M. Guedel, Y. Guo, M. Hailey, D. Hall, R. Hampson, J. Hasiba, O. Hetherington, A. Holland, S-Y. Hsieh, M. W. J. Hubbard, H. Jeszenszky, M. Jones, T. Kennedy, K. Koch-Mehrin, S. Kögl, S. Krucker, K. D. Kuntz, C. Lakin, G. Laky, O. Lylund, A. Martindale, J. Miguel Mas Hesse, R. Nakamura, K. Oksavik, N. Østgaard, H. Ottacher, R. Ottensamer, C. Pagani, S. Parsons, P. Patel, J. Pearson, G. Peikert, F. S. Porter, T. Pouliantis, B. H. Qureshi, W. Raab, G. Randall, A. M. Read, N. M. M. Roque, M. E. Rostad, C. Runciman, S. Sachdev, A. Samsonov, M. Soman, D. Sibeck, S. Smit, J. Søndergaard, R. Speight, S. Stavland, M. Steller, TianRan Sun, J. Thornhill, W. Thomas, K. Ullaland, B. Walsh, D. Walton, C. Wang, S. Yang
Publikováno v:
Earth and Planetary Physics, Vol 8, Iss 1, Pp 5-14 (2024)
The Soft X-ray Imager (SXI) is part of the scientific payload of the Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission. SMILE is a joint science mission between the European Space Agency (ESA) and the Chinese Academy of Sciences (CAS)
Externí odkaz:
https://doaj.org/article/6b19bd85a1e24e6fbe503471fa9df545
Autor:
A. Luque, F. J. Gordillo-Vázquez, D. Li, A. Malagón-Romero, F. J. Pérez-Invernón, A. Schmalzried, S. Soler, O. Chanrion, M. Heumesser, T. Neubert, V. Reglero, N. Østgaard
Publikováno v:
Geoscientific Model Development, Vol 13, Pp 5549-5566 (2020)
We describe a computer code that simulates how a satellite observes optical radiation emitted by a lightning flash after it is scattered within an intervening cloud. Our code, CloudScat.jl, is flexible, fully open source and specifically tailored to
Externí odkaz:
https://doaj.org/article/2ea4b6ef16604ab3b80e8d6f42de9a64
Autor:
N. Østgaard, J. P. Reistad, P. Tenfjord, K. M. Laundal, T. Rexer, S. E. Haaland, K. Snekvik, M. Hesse, S. E. Milan, A. Ohma
Publikováno v:
Annales Geophysicae, Vol 36, Pp 1577-1596 (2018)
Previous studies have shown that conjugate auroral features are displaced in the two hemispheres when the interplanetary magnetic field (IMF) has a transverse (Y) component. It has also been shown that a BY component is induced in the closed magnetos
Externí odkaz:
https://doaj.org/article/d96ca3e20541453d9a49f8940c2cbf3d
Autor:
D. Sarria, C. Rutjes, G. Diniz, A. Luque, K. M. A. Ihaddadene, J. R. Dwyer, N. Østgaard, A. B. Skeltved, I. S. Ferreira, U. Ebert
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 4515-4535 (2018)
The emerging field of high-energy atmospheric physics studies how high-energy particles are produced in thunderstorms, in the form of terrestrial γ-ray flashes and γ-ray glows (also referred to as thunderstorm ground enhancements). Understanding
Externí odkaz:
https://doaj.org/article/233cfe07ecc847c8a1e848e7833ee8bd
Publikováno v:
Geoscientific Model Development, Vol 9, Pp 3961-3974 (2016)
The emerging field of high energy atmospheric physics (HEAP) includes terrestrial gamma-ray flashes, electron–positron beams and gamma-ray glows from thunderstorms. Similar emissions of high energy particles occur in pulsed high voltage discharg
Externí odkaz:
https://doaj.org/article/71a6b96c33374ce5ab749fb293424877
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3429-3437 (2008)
We have examined the dawn-dusk component of the magnetic field, BY, in the night side current sheet during fast flows in the neutral sheet. 237 h of Cluster data from the plasma sheet between 2 August 2002 and 2 October 2002 have been analysed.
Externí odkaz:
https://doaj.org/article/2739b7fe4103438f8c88543bfe74e518
Autor:
K. Snekvik, S. Haaland, N. Østgaard, H. Hasegawa, R. Nakamura, T. Takada, L. Juusola, O. Amm, F. Pitout, H. Rème, B. Klecker, E. A. Lucek
Publikováno v:
Annales Geophysicae, Vol 25, Pp 1405-1415 (2007)
This article describes observations of a bursty bulk flow (BBF) in the outer central plasma sheet. The observations are made with the Cluster satellites, located approximately 19 RE downtail, close to the midnight sector in the Southern Hemisphere
Externí odkaz:
https://doaj.org/article/f6a9551d7dfe4ac282303cd4ef0c59b4
Autor:
M. Palmroth, P. Janhunen, T. I. Pulkkinen, A. Aksnes, G. Lu, N. Østgaard, J. Watermann, G. D. Reeves, G. A. Germany
Publikováno v:
Annales Geophysicae, Vol 23, Pp 2051-2068 (2005)
We investigate the Northern Hemisphere Joule heating from several observational and computational sources with the purpose of calibrating a previously identified functional dependence between solar wind parameters and ionospheric total energy consum
Externí odkaz:
https://doaj.org/article/dff732e4504d4201be559278efe5ccb4
Autor:
O. Amm, A. Aksnes, J. Stadsnes, N. Østgaard, R. R. Vondrak, G. A. Germany, G. Lu, A. Viljanen
Publikováno v:
Annales Geophysicae, Vol 23, Pp 325-342 (2005)
We present ground-based electromagnetic data from the MIRACLE and BEAR networks and satellite optical observations from the UVI and PIXIE instruments on the Polar satellite of an omega band event over Northern Scandinavia on 26 June 1998, which oc
Externí odkaz:
https://doaj.org/article/5606805e6d57439490494f64b17d479c
Publikováno v:
Annales Geophysicae, Vol 23, Pp 509-521 (2005)
Global ultraviolet auroral images from the IMAGE satellite were used to investigate the dynamics of the dayside auroral oval responding to a sudden impulse (SI) in the solar wind pressure. At the same time, the TV all-sky camera and the EISCAT rad
Externí odkaz:
https://doaj.org/article/0331b422863a424491d79962dff29c74