Results 21 to 30 of about 49,635 (283)

Auroral electrojet dynamics during magnetic storms, connection with plasma precipitation and large-scale structure of the magnetospheric magnetic field [PDF]

Annales Geophysicae, 1999
Effect of the equatorward shift of the eastward and westward electrojets during magnetic storms main phase is analyzed based on the meridional chains of magnetic observatories EISCAT and IMAGE and several Russian observatories (geomagnetic longitude ...
Y. I. Feldstein, L. I. Gromova, A. Grafe, C.-I. Meng, V. V. Kalegaev, I. I. Alexeev, Y. P. Sumaruk   +6 more
doaj   +1 more source

Sporadic Aurora near Geomagnetic Equator: In the Philippines, on 27 October 1856 [PDF]

, 2018
While low latitude auroral displays are normally considered to be a manifestation of magnetic storms of considerable size, Silverman (2003, JGR, 108, A4) reported numerous "sporadic auroras" which appear locally at relatively low magnetic latitudes ...
Ebihara, Yusuke, Hayakawa, Hisashi, Vaquero, José. M.   +2 more
core   +3 more sources

Unexpected space weather causing the reentry of 38 Starlink satellites in February 2022

Journal of Space Weather and Space Climate, 2022
The accidental reentry of 38 Starlink satellites occurred in early February 2022, associated with the occurrence of moderate magnetic storms. A poorly understood structure of Coronal Mass Ejections (CMEs) caused the magnetic storms at unexpected timing ...
Kataoka Ryuho, Shiota Daikou, Fujiwara Hitoshi, Jin Hidekatsu, Tao Chihiro, Shinagawa Hiroyuki, Miyoshi Yasunobu   +6 more
doaj   +1 more source

A density-temperature description of the outer electron radiation belt during geomagnetic storms [PDF]

, 2009
Bi-Maxwellian fits are made to energetic-electron flux measurements from seven satellites in geosynchronous orbit, yielding a number density (n) and temperature (T) description of the outer electron radiation belt.
Baker, Belian, Birn, Borovsky, Borovsky, Borovsky, Borovsky, Borovsky, Borovsky, Borovsky, Borovsky, Callis, Cayton, Chen, Clilverd, Denton, Denton, Denton, Denton, Denton, Denton, Dessler, Elphic, Freeman, Friedel, Georgieva, Green, Green, Hudson, Jian, Joseph E. Borovsky, Kavanagh, Kim, King, Lavraud, Li, Liemohn, Lindsay, Longden, Mann, McComas, McPherron, McPherron, Meredith, Michael H. Denton, Millan, Nagai, O'Brien, Onsager, Onsager, Onsager, Paulikas, Pesnell, Pierrard, Reeves, Rodger, Roederer, Roldugin, Rufenach, Russell, Sandanger, Seppälä, Sinnhuber, Smith, Sojka, Summers, Summers, Thomas E. Cayton, Thomsen, Tsurutani, Turner, Wilken, Wrenn, Zaharia, Zhang   +74 more
core   +2 more sources

Geomagnetic Storms and Related Solar Phenomena (a. Precipitating Particles and Auroras) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)

Antarctic Record, 1980
This is an attempt to identify the causes of geomagnetic storms which occurred during a year and a half from January 1977 to June 1978. The assignment of geomagnetic storm causation to appropriate coronal holes or solar flares has been made by ...
Katsuhide MARUHASHI, Takahiroo ISHI
doaj   +1 more source

Magnetic properties of inner magnetosphere during geomagnetic storms inferred from a tsy ganenko magnetic field model [PDF]

Journal of Astronomy and Space Sciences, 2004
In this paper we report some properties of inner magnetospheric structure inferred from the T01s code, one of the latest magnetospheric models by Tsyganenko.
D.Y. Lee, K. C. Kim, C. R. Choi, H. J. Kim   +3 more
doaj   +1 more source

Auroral Oval Boundary Dynamics on the Nature of Geomagnetic Storm

Remote Sensing, 2022
During emergency events, we could significantly depend on the stable operation of radio communication, navigation, and radars. The ionosphere, especially its auroral regions, significantly influences radio systems, which is why scientists and engineers ...
Ilya K. Edemskiy, Yury V. Yasyukevich
doaj   +1 more source

Dst Prediction Based on Solar Wind Parameters [PDF]

Journal of Astronomy and Space Sciences, 2009
We reevaluate the Burton equation (Burton et al. 1975) of predicting Dst index using high quality hourly solar wind data supplied by the ACE satellite for the period from 1998 to 2006.
Yoon-Kyung Park, Byung-Ho Ahn
doaj   +1 more source

Transequatorial magnetic flux loops on the sun: a possible new source of geomagnetic storms

Antarctic Record, 2009
Following the traditional way of expression, geomagnetic storms have been classified into three types; flare-type Sc storms, CH-type Sg storms, and DB-type Sc storms (Sc:sudden commencement;CH:coronal hole;g:gradual;DB:disparition brusque).We have ...
Takao Saito, Hiroaki Misawa, Natsuo Sato, S.-I. Akasofu, W. Sun, C.S. Deehr   +5 more
doaj   +1 more source

Ionospheric response to the corotating interaction region-driven geomagnetic storm of October 2002 [PDF]

, 2009
Unlike the geomagnetic storms produced by coronal mass ejections (CMEs), the storms generated by corotating interaction regions (CIRs) are not manifested by dramatic enhancements of the ring current. The CIR-driven storms are however capable of producing
Borovsky, Borovsky, Bust, Bust, C. N. Mitchell, Crowley, D. Pokhotelov, Denton, Foster, Foster, Gonzalez, J. W. MacDougall, Jayachandran, Lunt, Lunt, M. H. Denton, MacDougall, Mannucci, Mannucci, Mitchell, P. T. Jayachandran, Pokhotelov, Richardson, Sojka, Spencer, Su, Thomsen, Tsurutani, Tsurutani, Tsurutani, Turner, Weimer, Yizengaw, Zhang   +33 more
core   +1 more source