Results 1 to 10 of about 289,909 (107)

Plasma and Magnetic Field Characteristics of Solar Coronal Mass Ejections in Relation to Geomagnetic Storm Intensity and Variability [PDF]

, 2015
The largest geomagnetic storms of solar cycle 24 so far occurred on 2015 March 17 and June 22 with $D_{\rm st}$ minima of $-223$ and $-195$ nT, respectively. Both of the geomagnetic storms show a multi-step development. We examine the plasma and magnetic field characteristics of the driving coronal mass ejections (CMEs) in connection with the ...
Hu, Huidong, Liu, Yi A., Liu, Ying D., Luhmann, Janet G., Richardson, John D., Wang, Rui, Yang, Zhongwei, Zhu, Bei   +7 more
arxiv   +7 more sources

Geomagnetic storm dependence on the solar flare class [PDF]

Cosmic Research, 2009, Vol. 47, No. 6, pp. 460--465, 2006
Content. Solar flares are often used as precursors of geomagnetic storms. In particular, Howard and Tappin (2005) recently published in A&A a dependence between X-ray class of solar flares and Ap and Dst indexes of geomagnetic storms which contradicts to early published results. Aims.
E. Echer, E.W. Cliver, F. Valach, G.M. Lindsay, H. Song, I.A. Daglis, J. Zhang, J.T. Gosling, L.I. Miroshnichenko, M. Yu. Yermolaev, P.K. Shrivastava, R.A. Harrison, R.A. Harrison, R.K. Burton, S. Krajcovic, S.W. Kahler, T.A. Howard, V.S. Prokudina, W.D. Gonzalez, Y.D. Park, Yu. I. Yermolaev, Yu. I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Yu.I. Yermolaev, Z.K. Smith   +30 more
arxiv   +4 more sources

The variation of geomagnetic storm duration with intensity [PDF]

Solar Physics, 2019
Variability in the near-Earth solar wind conditions can adversely affect a number of ground- and space-based technologies. Such space-weather impacts on ground infrastructure are expected to increase primarily with geomagnetic storm intensity, but also ...
A. Ruffenach, B.T. Tsurutani, C. Haines, D. Mourenas, D.N. Baker, E. Echer, E.J. Oughton, E.K.J. Kilpua, H. Lundstedt, H. Xie, I. Jolliffe, I.G. Richardson, I.G. Richardson, J. Bartels, J.A. Hutchinson, J.A. Joselyn, J.B. Carlin, J.D. Singer, J.E. Borovsky, J.P. Eastwood, J.T. Gosling, J.W. Dungey, K.J. Patel, L. Barnard, L. Trichtchenko, L. Trichtchenko, M. Abunina, M. J. Owens, M. Lockwood, M. Lockwood, M. Lockwood, M. Lockwood, M. Lockwood, M. Lockwood, M.-T. Walach, M.J. Owens, N. Balan, N. Yokoyama, P. Cannon, P. Riley, P. Riley, P. Riley, P.-N. Mayaud, P.-N. Mayaud, P.D. Allison, S. Vennerstrom, W.D. Gonzalez   +46 more
core   +2 more sources

Radial distribution of the inner magnetosphere plasma pressure using low-altitude satellite data during geomagnetic storm: the March 1-8, 1982 Event [PDF]

, 2007
Plasma pressure distribution in the inner magnetosphere is one of the key parameters for understanding the main magnetospheric processes including geomagnetic storms and substorms. However, the pressure profiles obtained from in-situ particle measurements by the high-altitude satellites do not allow tracking the pressure variations related to the ...
Antonova, Antonova, Antonova, Antonova, Antonova, Borovsky, Bosqued, Daglis, DeMichelis, Dessler, E.E. Antonova, Iyemori, J.M. Bosqued, Kozelova, Liemohn, Lui, Lui, Lui, Lyons, Lyons, M. Stepanova, McPherron, Newell, Newell, Parker, Pulkkinen, Sckopke, Stepanova, Stepanova, Stepanova, Sugiura, Tsyganenko, Tsyganenko, Tsyganenko, Tverskaya, Tverskaya, Tverskoy, Williams, Wing, Wing, Zaharia, Zaharia   +41 more
arxiv   +3 more sources

Characteristics and Importance of “ICME-in-sheath” Phenomenon and Upper Limit for Geomagnetic Storm Activity [PDF]

Astrophysical Journal, 2020
As an important source for large geomagnetic storms, an “ICME-in-sheath” is a completely shocked interplanetary coronal mass ejection (ICME) stuck in the sheath between a shock and host ejecta.
Ying D. Liu, Chong Chen, Xiaowei Zhao
semanticscholar   +1 more source

Potential of Regional Ionosphere Prediction Using a Long Short‐Term Memory Deep‐Learning Algorithm Specialized for Geomagnetic Storm Period

, 2021
In our previous study (Moon et al., 2020, https://doi.org/10.3938/jkps.77.1265), we developed a long short‐term memory (LSTM) deep‐learning model for geomagnetic quiet days (LSTM‐quiet) to perform effective long‐term predictions for the regional ...
Jeongheon Kim, Y. Kwak, Yongha Kim, S. Moon, Se‐Heon Jeong, J. Yun   +5 more
semanticscholar   +1 more source

CME–CME Interactions as Sources of CME Geoeffectiveness: The Formation of the Complex Ejecta and Intense Geomagnetic Storm in 2017 Early September [PDF]

Astrophysical Journal Supplement Series, 2019
Coronal mass ejections (CMEs) are the primary sources of intense disturbances at Earth, where their geoeffectiveness is largely determined by their dynamic pressure and internal magnetic field, which can be significantly altered during interactions with ...
C. Scolini, E. Chan'e, M. Temmer, E. Kilpua, K. Dissauer, A. Veronig, E. Palmerio, J. Pomoell, M. Dumbovi'c, Jingnan Guo, Luciano Rodriguez, S. Poedts   +11 more
semanticscholar   +1 more source

From the Sun to Earth: effects of the 25 August 2018 geomagnetic storm

Annals of Geophysics, 2020
. On 25 August 2018 the interplanetary counterpart of the 20 August 2018 coronal mass ejection (CME) hit Earth, giving rise to a strong G3 geomagnetic storm. We present a description of the whole sequence of events from the Sun to the ground as well as a
M. Piersanti, P. de Michelis, D. del Moro, R. Tozzi, M. Pezzopane, G. Consolini, M. F. Marcucci, M. Laurenza, S. Di Matteo, A. Pignalberi, V. Quattrociocchi, P. Diego   +11 more
semanticscholar   +1 more source

The First Intense Geomagnetic Storm Event Recorded by the China Seismo‐Electromagnetic Satellite

Space Weather, 2020
On 25 August 2018, the China Seismo‐Electromagnetic Satellite (CSES) encountered the first intense geomagnetic storm event since its launch on 2 February 2018.
Y.-Y. Yang, Z. Zhima, X.‐H. Shen, W. Chu, Jp Huang, Q. Wang, R. Yan, S. Xu, Hengxin Lu, Dapeng Liu   +9 more
semanticscholar   +1 more source

Degradation of Kinematic PPP of GNSS Stations in Central Europe Caused by Medium-Scale Traveling Ionospheric Disturbances During the St. Patrick's Day 2015 Geomagnetic Storm

Remote Sensing, 2020
In solar cycle 24, the strongest geomagnetic storm took place on March 17, 2015, when the geomagnetic activity index was as high as -223 nT. To verify the impact that the storm had on the Global Navigation Satellite System (GNSS)’s positioning accuracy ...
M. Poniatowski, G. Nykiel
semanticscholar   +1 more source