Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Helen, Mavromichalaki"'
Autor:
Helen Mavromichalaki, Maria Livada, Argyris Stassinakis, Maria Gerontidou, Maria-Christina Papailiou, Line Drube, Aikaterini Karmi
Publikováno v:
Atmosphere, Vol 15, Iss 9, p 1073 (2024)
A novel tool utilizing machine learning techniques was designed to forecast ap index values for the next three consecutive days (24 values). The tool employs time series data from the 3 h ap index of solar cycles 23 and 24 to train the Long Short-Ter
Externí odkaz:
https://doaj.org/article/5f8e08383c72464fb9e738829128907b
Autor:
Helen Mavromichalaki, Maria-Christina Papailiou, Maria Livada, Maria Gerontidou, Pavlos Paschalis, Argyris Stassinakis, Maria Abunina, Nataly Shlyk, Artem Abunin, Anatoly Belov, Victor Yanke, Norma Crosby, Mark Dierckxsens, Line Drube
Publikováno v:
Atmosphere, Vol 15, Iss 9, p 1033 (2024)
As the current solar cycle 25 progresses and moves towards solar maxima, solar activity is increasing and extreme space weather events are taking place. Two severe geomagnetic storms accompanied by two large Forbush decreases in galactic cosmic ray i
Externí odkaz:
https://doaj.org/article/4e7ec271e68745ee8fc150e7bf5ee5f7
Autor:
Maria-Christina Papailiou, Maria Abunina, Helen Mavromichalaki, Nataly Shlyk, Semyon Belov, Artem Abunin, Maria Gerontidou, Anatoly Belov, Victor Yanke, Amalia Triantou
Publikováno v:
Atmosphere, Vol 15, Iss 7, p 742 (2024)
Forbush decreases are usually characterized by increased values of cosmic ray anisotropy. The precursory signs, i.e., pre-increases and especially pre-decreases of the cosmic ray intensity, are highly anisotropic phenomena that ordinarily forewarn of
Externí odkaz:
https://doaj.org/article/21edffdda72d47c083c0d6c86b14295a
Publikováno v:
Atmosphere, Vol 15, Iss 6, p 685 (2024)
The effects of solar activity and the accompanying space weather events on human pathological conditions, physiological parameters and other psycho-physiological disturbances have been analyzed in numerous recent investigations. Moreover, many of the
Externí odkaz:
https://doaj.org/article/3f83c0aec1124cb38920747d5e5d392d
Autor:
Helen Mavromichalaki, Pavlos Paschalis, Maria Gerontidou, Anastasia Tezari, Maria-Christina Papailiou, Dimitra Lingri, Maria Livada, Argyris Stassinakis, Norma Crosby, Mark Dierckxsens
Publikováno v:
Atmosphere, Vol 15, Iss 3, p 345 (2024)
Over the last years the Athens Cosmic Ray Group of the National & Kapodistrian University of Athens has implemented a warning tool called GLE Alert, which is a highly credible application that issues alerts when a ground level enhancement (GLE) start
Externí odkaz:
https://doaj.org/article/795ab53ac8a1496682655ac93786222d
Autor:
Anastasia Tezari, Argyris N. Stassinakis, Panagiota Makrantoni, Pavlos Paschalis, Dimitris Alexandridis, Maria Gerontidou, Helen Mavromichalaki, Pantelis Karaiskos, Norma Crosby, Mark Dierckxsens
Publikováno v:
Atmosphere, Vol 15, Iss 2, p 149 (2024)
In recent decades, the exposure of aviation crews and passengers to cosmic radiation has been progressively increasing due to the growing need of flights. Therefore, there is a need for radiation assessment software tools to act as a complement to ot
Externí odkaz:
https://doaj.org/article/184c42d7c440483c8c753942f94e46c1
Publikováno v:
Atmosphere, Vol 15, Iss 2, p 158 (2024)
The number of investigations relevant to the study of geomagnetic activity, solar events, and cosmic rays, i.e., space weather phenomena, and their impact on human health has increased dramatically over the past few years. Numerous studies examine th
Externí odkaz:
https://doaj.org/article/397dbb09aae54b3eb1f5514fc4b75bb6
Autor:
Anastasia Tezari, Argyris N. Stassinakis, Pavlos Paschalis, Helen Mavromichalaki, Christina Plainaki, Anastasios Kanellakopoulos, Norma Crosby, Mark Dierckxsens, Pantelis Karaiskos
Publikováno v:
Universe, Vol 8, Iss 12, p 637 (2022)
The new space era has expanded the exploration of other planets of our solar system. In this work, radiation quantities are estimated in the Venusian atmosphere using the software tool DYASTIMA/DYASTIMA-R, such as the energy deposit and the ambient d
Externí odkaz:
https://doaj.org/article/4ea95d28c4344e67b571e5cce36f5a7f
Autor:
Helen Mavromichalaki, Pavlos Paschalis, Maria Gerontidou, Maria-Christina Papailiou, Evangelos Paouris, Anastasia Tezari, Dimitra Lingri, Maria Livada, Argyris N. Stassinakis, Norma Crosby, Mark Dierckxsens
Publikováno v:
Universe, Vol 8, Iss 7, p 378 (2022)
A ground-level enhancement (GLE) event is a sudden increase in cosmic ray intensity originated by solar sources and recorded by ground-based detectors. GLEs are invariably associated with large solar flares that can release and accelerate solar parti
Externí odkaz:
https://doaj.org/article/076d1c539aca4341a481c279f6d6d587
Autor:
Panagiota Makrantoni, Anastasia Tezari, Argyris N. Stassinakis, Pavlos Paschalis, Maria Gerontidou, Pantelis Karaiskos, Alexandros G. Georgakilas, Helen Mavromichalaki, Ilya G. Usoskin, Norma Crosby, Mark Dierckxsens
Publikováno v:
Applied Sciences, Vol 12, Iss 11, p 5297 (2022)
The main source of the ionization of the Earth’s atmosphere is the cosmic radiation that depends on solar activity as well as geomagnetic activity. Galactic cosmic rays constitute a permanent radiation background and contribute significantly to the
Externí odkaz:
https://doaj.org/article/b7c31caffa014e49be1279d2a05443f9