Výsledky vyhledávání - "Ermanno Amata"

Akademický článek

Effects of Abrupt Variations of Solar Wind Dynamic Pressure on the High-Latitude Ionosphere

Autor: Igino Coco, Ermanno Amata, Maria Federica Marcucci, Danila Ambrosino, Simon G. Shepherd

Publikováno v: International Journal of Geophysics, Vol 2011 (2011)

We show the results of a statistical study on the effects in the high-latitude ionosphere of abrupt variations of solar wind dynamic pressure, using Super Dual Auroral Radar Network (SuperDARN) data in both hemispheres. We find that, during periods o

Externí odkaz: https://doaj.org/article/29e780fada5f44cebc0d5e9a87b72923

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Collisionless Plasma Processes at Magnetospheric Boundaries: Role of Strong Nonlinear Wave Interactions

Autor: F. Marcucci, A. S. Sharma, Jean-Louis Rauch, Zdenek Nemecek, Jan Blecki, L. Kozak, G. Pallocchia, L. Legen, Hui Li, M. N. Nozdrachev, Chi Wang, L. Zelenyi, Ermanno Amata, Sergey Savin, Vyacheslav Budaev, Jana Safrankova, Binbin Tang

Publikováno v: JETP Letters. 110:336-341

The sunward Poynting flux throughout the magnetosheath and foreshock (directly measured by INERBALL-1, CLUSTER-4, and DOUBLE STAR TC1) and its correlation and bi-correlation with the dynamic pressure of the solar plasma flow have been analyzed. It ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c1a3c91c071dbedbe9e1ffffa0610d4
https://doi.org/10.1134/s0021364019170028

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Observation of energy-time dispersed ion structures in the magnetosheath by CLUSTER: possible signatures of transient acceleration processes at shock

Autor: Karim Meziane, Iannis Dandouras, Malcolm Dunlop, George K. Parks, J. M. Bosqued, P. Louarn, André Balogh, Ermanno Amata, Urs Mall, H. Rème, J. A. Sauvaud, L. M. Kistler, E. Budnik, P. W. Daly

Publikováno v: Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2003, 21 (7), pp.1483-1495
Annales Geophysicae, 2003, 21 (7), pp.1483-1495
Annales Geophysicae, Vol 21, Iss 7, Pp 1483-1495 (0000)
Annales Geophysicae, Vol 21, Pp 1483-1495 (2003)
Scopus-Elsevier

We analyse energy-time dispersed ion signatures that have been observed by CLUSTER in the dayside magnetosheath. These events are characterized by sudden increases in the ion flux at energies larger than 10 keV. The high energy ions (30 keV) are firs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce30422c9f5b75a098677ceb3e94a2a2
https://www.ann-geophys.net/21/1483/2003/

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Magnetopause charging and transfer of momentum and energy into magnetosphere

Autor: L. Legen, V. P. Silin, A. Skalsky, V.M. Neshchadim, Stanislav Klimov, Vyacheslav Budaev, V. Yu. Popov, Jean-Louis Rauch, Jan Blecki, Ermanno Amata, V. V. Lyahov, Sergey Savin

Publikováno v: Bulletin of the Lebedev Physics Institute
Bulletin of the Lebedev Physics Institute, Springer, 2017, 44 (4), pp.99-105. ⟨10.3103/S1068335617040030⟩

International audience; The theory of charged current sheets is compared with plasma data of Prognoz-8, Interball-1, Polar, and Cluster satellites. The possibility of momentum and energy transfer into the magnetosphere, irrespective of magnetic field

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f675de3a6108d1d7e9533cc6b646259f
https://hal-insu.archives-ouvertes.fr/insu-01678450

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A case study of global ULF pulsations using data from space-borne and ground-based magnetometers and a SuperDARN radar

Autor: Igino Coco, L. V. Ryzhakova, A. S. Potapov, T. N. Polyushkina, Ermanno Amata

Publikováno v: Kosmìčna nauka ì tehnologìâ. 17:54-67

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d13446225a4e99d098981fdff7585150
https://doi.org/10.15407/knit2011.06.054

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Dynamical changes of the polar cap potential structure: an information theory approach

Autor: Maria Federica Marcucci, Ermanno Amata, Giuseppe Consolini, Igino Coco, D. Ambrosino

Publikováno v: Nonlinear Processes in Geophysics, Vol 18, Iss 5, Pp 697-707 (2011)

Some features, such as vortex structures often observed through a wide spread of spatial scales, suggest that ionospheric convection is turbulent and complex in nature. Here, applying concepts from information theory and complex system physics, we fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d965bae283e989b5ccc2f21ccfaa0ba6
http://www.nonlin-processes-geophys.net/18/697/2011/npg-18-697-2011.pdf

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ROY—A multiscale magnetospheric mission

Publikováno v: Planetary and Space Science. 59:606-617

The scientific rationale of the ROY multi-satellite mission addresses multiscale investigations of plasma processes in the key magnetospheric regions with strong plasma gradients, turbulence and magnetic field annihilation in the range from electron

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4dafd1f4f1306fa3bcc432ea952e7b9
https://doi.org/10.1016/j.pss.2010.05.001

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High kinetic energy density jets in the Earth’s magnetosheath: A case study

Autor: Y. V. Bogdanova, D. Ambrosino, Maria Federica Marcucci, Sergey Savin, Ermanno Amata, S. Romanov, A. Skalsky

Publikováno v: Planetary and Space Science. 59:482-494

We study several high kinetic energy density jets observed during a traversal of the dayside magnetosheath by the Cluster spacecraft on March 17, 2001, at various distances from the magnetopause, generally characterised by anomalously high values of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a45297820f3c90f6be2beac1c44a98f
https://doi.org/10.1016/j.pss.2010.07.021

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Different responses of northern and southern high latitude ionospheric convection to IMF rotations: a case study based on SuperDARN observations

Autor: Ermanno Amata, Maria Federica Marcucci, Igino Coco, William A. Bristow, Peter. Dyson, D. Ambrosino

Publikováno v: Annales Geophysicae, Vol 27, Iss 6, Pp 2423-2438 (2009)
Annales Geophysicae, Vol 27, Pp 2423-2438 (2009)

We use SuperDARN data to study high-latitude ionospheric convection over a three hour period (starting at 22:00 UT on 2 January 2003), during which the Interplanetary Magnetic Field (IMF) flipped between two states, one with By>>|Bz| and one with Bz>

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e5ff03626718155018725371629e2f0
http://www.ann-geophys.net/27/2423/2009/angeo-27-2423-2009.pdf

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ANN forecast of hourly averaged AE index based on L1 IMF and plasma measurements

Autor: Ermanno Amata, Giuseppe Consolini, G. Pallocchia, Maria Federica Marcucci

Publikováno v: Acta Geophysica. 57:185-196

The AE index has two components: one driven by the solar wind and one related to the magnetotail unloading process. We recall some past findings on this issue and present a new ANN algorithm for the AE forecasting at 5 and 60 min time scales, built b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3d0aebc35b5d1eeda69d773798cd5c0
https://doi.org/10.2478/s11600-008-0083-1

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