The radiation environment in near-earth space as treated in terms of different model representations

1996 ◽  
Vol 26 (3) ◽  
pp. 493-496 ◽  
Author(s):  
A.M. Marenny ◽  
R.A. Nymmik ◽  
E.D. Tolstaya ◽  
E.V. Benton
2021 ◽  
Vol 59 (6) ◽  
pp. 433-445
Author(s):  
I. N. Myagkova ◽  
A. V. Bogomolov ◽  
V. E. Eremeev ◽  
A. O. Shiryaev ◽  
E. A. Ginzburg

2019 ◽  
Vol 9 ◽  
pp. A29
Author(s):  
Vladimir Kalegaev ◽  
Mikhail Panasyuk ◽  
Irina Myagkova ◽  
Yulia Shugay ◽  
Natalia Vlasova ◽  
...  

Internet-based system of Space Monitoring Data Center (SMDC) of Skobeltsyn Institute of Nuclear Physics of Moscow State University (SINP MSU) has been developed to predict and analyze radiation conditions in near-Earth space. This system contains satellite measurement databases and operational models and devoted to collect, store and process space weather monitoring data in the near real-time. SMDC operational services acquire data from ACE, SDO, GOES, Electro-L, Meteor-M satellites and use them for forecasting, now-casting and post-casting of space weather factors. This paper is intended to give overview of operational services of SMDC Internet-based system and demonstrate their possibilities and limitations to analyze space weather phenomena and predict radiation and geomagnetic conditions in the near-Earth space during February 14–March 5, 2014. This prolonged period of high level solar and geomagnetic activity demonstrates various manifestations of the space weather: solar proton events, geomagnetic storms and outer radiation belt (RB) dynamics. Solar sources of interplanetary space disturbances and their influence on geomagnetic and radiation state of the Earth’s magnetosphere were described using output coming from SMDC’ Web-based applications. Validation of SMDC’s operational models was performed based on the quality of description of the physical conditions in near-Earth space during space weather events observed from February 14 to March 5, 2014. The advantages and disadvantages of SMDC operational services are illustrated and discussed based on comparison with data obtained from satellites.


2017 ◽  
Vol 13 (S335) ◽  
pp. 232-235
Author(s):  
Irina N. Myagkova ◽  
Vladimir V. Kalegaev ◽  
Mikhail I. Panasyuk ◽  
Yuliya S. Shugai ◽  
Sergey A. Dolenko ◽  
...  

AbstractRadiation environment of near-Earth space is one of the most important factors of space weather. Space Monitoring Data Center of Moscow State University provides operational monitor and forecast of radiation conditions both at Geostationary Orbits (GEO) and at Low Earths Orbits (LEO) of the near-Earth space using data of recent space missions (Vernov, CORONAS series) and current (Lomonosov, Meteor-M, Electro-L) ones. Internet portal of Space Monitoring Data Center of Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University (SINP MSU - [swx.sinp.msu.ru]) provides possibilities to monitor and analyze the space radiation conditions in the real time mode together with the geomagnetic and solar activity including hard X-ray and gamma-emission of solar flares.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Man Hua ◽  
Wen Li ◽  
Binbin Ni ◽  
Qianli Ma ◽  
Alex Green ◽  
...  

Abstract Very-Low-Frequency (VLF) transmitters operate worldwide mostly at frequencies of 10–30 kilohertz for submarine communications. While it has been of intense scientific interest and practical importance to understand whether VLF transmitters can affect the natural environment of charged energetic particles, for decades there remained little direct observational evidence that revealed the effects of these VLF transmitters in geospace. Here we report a radially bifurcated electron belt formation at energies of tens of kiloelectron volts (keV) at altitudes of ~0.8–1.5 Earth radii on timescales over 10 days. Using Fokker-Planck diffusion simulations, we provide quantitative evidence that VLF transmitter emissions that leak from the Earth-ionosphere waveguide are primarily responsible for bifurcating the energetic electron belt, which typically exhibits a single-peak radial structure in near-Earth space. Since energetic electrons pose a potential danger to satellite operations, our findings demonstrate the feasibility of mitigation of natural particle radiation environment.


2019 ◽  
Vol 873 (2) ◽  
pp. 112 ◽  
Author(s):  
M. Laurenza ◽  
T. Alberti ◽  
M. F. Marcucci ◽  
G. Consolini ◽  
C. Jacquey ◽  
...  

2008 ◽  
Vol 55 (4) ◽  
pp. 1810-1832 ◽  
Author(s):  
SÉbastien Bourdarie ◽  
Michael Xapsos

2004 ◽  
Vol 10 (2-3) ◽  
pp. 16-21
Author(s):  
O.F. Tyrnov ◽  
◽  
Yu.P. Fedorenko ◽  
L.F. Chernogor ◽  
◽  
...  

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