Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kero, A. (Antti)"'
Autor:
Kero, A. (Antti)
Powerful radio waves can heat an electron gas via collisions between free electrons and neutral particles. Since the discovery of the Luxembourg effect in 1934, this effect is known to take place in the D-region ionosphere. According to theoretical m
Externí odkaz:
http://urn.fi/urn:isbn:9789514289163
Autor:
Baumann, C. (Carsten), Kero, A. (Antti), Raizada, S. (Shikha), Rapp, M. (Markus), Sulzer, M. P. (Michael P.), Verronen, P. T. (Pekka T.), Vierinen, J. (Juha)
Earth's lower ionosphere is the region where terrestrial weather and space weather come together. Here, between 60 and 100 km altitude, solar radiation governs the diurnal cycle of the ionized species. This altitude range is also the place where nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::b910e96b68211f6fb72adb4e9da33d41
http://urn.fi/urn:nbn:fi-fe2023060252049
http://urn.fi/urn:nbn:fi-fe2023060252049
Autor:
Kallio, E. (Esa), Kero, A. (Antti), Harri, A.-M. (Ari-Matti), Kestilä, A. (Antti), Aikio, A. (Anita), Fontell, M. (Mathias), Jarvinen, R. (Riku), Kauristie, K. (Kirsti), Knuuttila, O. (Olli), Koskimaa, P. (Petri), Loyala, J. (Jauaries), Lukkari, J.-M. (Juha-Matti), Modabberian, A. (Amin), Niittyniemi, J. (Joonas), Rynö, J. (Jouni), Vanhamäki, H. (Heikki), Varberg, E. (Erik)
Radio waves provide a useful diagnostic tool to investigate the properties of the ionosphere because the ionosphere affects the transmission and properties of high frequency (HF) electromagnetic waves. We have conducted a transionospheric HF-propagat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::5b7c14c3026c46e389f5ae20c2882128
http://urn.fi/urn:nbn:fi-fe2022110764664
http://urn.fi/urn:nbn:fi-fe2022110764664
Autor:
Verronen, P. T. (Pekka T.), Kero, A. (Antti), Partamies, N. (Noora), Szeląg, M. E. (Monika E.), Oyama, S.-I. (Shin-Ichiro), Miyoshi, Y. (Yoshizumi), Turunen, E. (Esa)
Recent simulation studies have provided evidence that a pulsating aurora (PsA) associated with high-energy electron precipitation is having a clear local impact on ozone chemistry in the polar middle mesosphere. However, it is not clear if the PsA is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::05fe23464a5fbd19bc1dda43a6ecadf4
http://urn.fi/urn:nbn:fi-fe2021112356445
http://urn.fi/urn:nbn:fi-fe2021112356445
Autor:
Takahashi, T. (Toru), Virtanen, I. I. (Ilkka I.), Hosokawa, K. (Keisuke), Ogawa, Y. (Yasunobu), Aikio, A. (Anita), Miyaoka, H. (Hiroshi), Kero, A. (Antti)
The primary focus of this study was the motion of auroral patches and the polarization electric field generated therein observed on 9 November 2015 in an experiment using the European incoherent scatter (EISCAT) radars, Kilpisjärvi Atmospheric Imagi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::8970666e4327c530b56d220b3778c29d
http://urn.fi/urn:nbn:fi-fe2019092329509
http://urn.fi/urn:nbn:fi-fe2019092329509
Autor:
Heino, E. (Erkka), Verronen, P. T. (Pekka T.), Kero, A. (Antti), Kalakoski, N. (Niilo), Partamies, N. (Noora)
Solar proton events (SPEs) cause large‐scale ionization in the middle atmosphere leading to ozone loss and changes in the energy budget of the middle atmosphere. The accurate implementation of SPEs and other particle ionization sources in climate m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::6588f1878d626ab92bcfbd0c466aa17a
http://urn.fi/urn:nbn:fi-fe201903219531
http://urn.fi/urn:nbn:fi-fe201903219531
Autor:
Marshall, R. A. (Robert A.), Xu, W. (Wei), Kero, A. (Antti), Kabirzadeh, R. (Rasoul), Sanchez , E. (Ennio)
We present numerical simulations and analysis of atmospheric effects of a beam of 1 MeV electrons precipitating in the upper atmosphere from above. Beam parameters of 100 J or 1 kJ injected in 100 ms or 1 s were chosen to reflect the current design r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::2ff390833b0ab9ed0ef385bca1a3eb47
http://urn.fi/urn:nbn:fi-fe2019091328156
http://urn.fi/urn:nbn:fi-fe2019091328156
Autor:
Xu, W. (Wei), Marshall, R. A. (Robert A.), Fang, X. (Xiaohua), Turunen, E. (Esa), Kero, A. (Antti)
Precipitation of energetic particles into the Earth’s atmosphere can significantly change the properties, dynamics, as well as the chemical composition of the upper and middle atmosphere. In this paper, using Monte Carlo models, we simulate, from f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2423::19a87c4047e951e2508d991a77bcaa20
https://github.com/wexu6668/EEP_GRL_2017
https://github.com/wexu6668/EEP_GRL_2017