Zobrazeno 1 - 10 of 57 pro vyhledávání: '"Nestor Aponte"'
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Responses of the topside ion fractions concentration over the Arecibo Observatory to solar and geomagnetic activity for the summer period
Autor: Christiano Garnett Marques Brum, Michael Sulzer, Angela M. Santos, Nestor Aponte
Publikováno v: 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
In this work, we are analyzing incoherent scatter radar (ISR) data for H+, He+, and O+ ion fractions from the Arecibo Observatory for the period of June solstice (May, June, July, and August) for 1998 and 2000 with respect to solar flux and geomagnet
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5a5faf480651e7249cade44807b15f5
https://doi.org/10.23919/ursigass51995.2021.9560602
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4
Long-term Trends in the Upper atmosphere using the observations of Incoherent Scatter Radar at Arecibo Observatory
Autor: Nestor Aponte, Michael P. Sulzer, Selvaraj Dharmalingam, Christiano M. G. Brum
Publikováno v: 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
Several studies on long-term trend using the ion temperature in ionospheric F-region are made in high-latitude stations using Incoherent Scatter Radar (ISR) measurements. Those observed trends indicate the upper atmospheric cooling. Those studies rep
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1db620b39f76aca9e58b985c18a82859
https://doi.org/10.23919/ursigass51995.2021.9560306
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6
SAMI3 Simulations of Ionospheric Metallic Layers at Arecibo
Autor: Joseph Huba, J. Krall, Nestor Aponte, Douglas P. Drob, E. Nossa
Publikováno v: Journal of Geophysical Research: Space Physics. 125
The Naval Research Laboratory (NRL) Sami3 is Also a Model of the Ionosphere (SAMI3) ionosphere/plasmasphere code is used to examine the physics of metallic layers at altitudes from 80 to 160 km. Re...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e41840cb7d3799b8247cdd71a084c75a
https://doi.org/10.1029/2019ja027297
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8
The Ionospheric Impact of an ICME‐Driven Sheath Region Over Indian and American Sectors in the Absence of a Typical Geomagnetic Storm
Autor: John Noto, Diptiranjan Rout, Michael P. Sulzer, Geoffrey D. Reeves, Atul S. Kulkarni, Bela G. Fejer, S. Sarkhel, Nestor Aponte, R. Sekar, D. K. Chakrabarty, Robert B. Kerr, John D. Mathews
Publikováno v: All Physics Faculty Publications
On 13 April 2013, the ACE spacecraft detected arrival of an interplanetary shock at 2250 UT, which is followed by the passage of the sheath region of an interplanetary coronal mass ejection (ICME) for a prolonged (18‐hr) period. The polarity of int
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d676f93f2bdce078494b31352b4a0b46
https://doi.org/10.1029/2018ja025334
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