Results 91 to 100 of about 18,554 (245)

Solar activity catalogue. Volume 4 - Catalogue of solar activity during 1959 [PDF]

Solar activity catalog covering solar flares, terrestrial effects, plage regions, radio emissions, geomagnetic storms, and balloon ...
Dodson-Prince, H., Hedeman, E. R., Jonah, F. C.   +2 more
core   +1 more source

Maximum Coronal Mass Ejection Speed as an Indicator of Solar and Geomagnetic Activities

, 2011
We investigate the relationship between the monthly averaged maximal speeds of coronal mass ejections (CMEs), international sunspot number (ISSN), and the geomagnetic Dst and Ap indices covering the 1996-2008 time interval (solar cycle 23).
A. Kilcik, A. Ozguc, Abramenko, Abramenko, Box, Durbin, Gopalswamy, Gopalswamy, Gopalswamy, J. P. Rozelot, Kilcik, Legrand, Luhmann, Moon, N. Gopalswamy, P. R. Goode, Qiu, Ramesh, Sugiura, V. Abramenko, V. B. Yurchyshyn, Zhang   +21 more
core   +3 more sources

Geomagnetic storms predictions....

, 2014
Arecibo Observatory saturday academy student poster.
openaire   +1 more source

Ionospheric Effects on Maximum Usable Frequency for a Cross‐Auroral and a Polar Cap HF Radio Link

Radio Science, Volume 61, Issue 5, May 2026.
Abstract Maximum usable frequency (MUF) is an important indicator of the ability of the ionosphere to support over‐the‐horizon propagation of high frequency (HF) radio waves. MUF depends on the location of the transmitter and receiver, and the structure of ionospheric electron density.
T. G. Cameron, K. W. Reiter, R. A. D. Fiori   +2 more
wiley   +1 more source

Occurrence rate of extreme magnetic storms

, 2012
Statistical analysis of occurrence rate of magnetic storms induced by different types of interplanetary drivers is made on the basis of OMNI data for period 1976-2000.
Lodkina, I. G., Nikolaeva, N. S., Yermolaev, M. Yu., Yermolaev, Yu. I.   +3 more
core   +1 more source

The Extreme GIC Occurrence During 11 years of Observations in the North‐West of Russia

Space Weather, Volume 24, Issue 5, May 2026.
Abstract For the first time, events with extreme magnitudes of geomagnetically induced currents (GICs) in the power lines during the quasi‐solar cycle (2012–2022) at auroral and subauroral latitudes are analyzed. GIC recordings from auroral Vykhodnoy (Murmansk region) and subauroral Kondopoga (Karelia) sub‐stations together with data from near‐by ...
V. B. Belakhovsky, V. A. Pilipenko, V. N. Selivanov, Ya. A. Sakharov, J. J. Zhang, V. V. Kolobov   +5 more
wiley   +1 more source

Investigation of the geomagnetic storms’ impact on low-latitude ionosphere: case studies of October 2003 and March 2015 events

Proceedings of the Nigerian Society of Physical Sciences
Geomagnetic storms can significantly impact the Earth's upper atmosphere known as the ionosphere used for communication and navigation, particularly at low latitudes.
Hammed Adeniyi Lawal, Isreal Leke Elijah, Edwin Beshel Ayabie, Yusuf Bello, Joseph Alao, Innocent Davidson   +5 more
doaj   +1 more source

Solar Influences on Geomagnetic and Related Phenomena [PDF]

, 1961
Solar influences on geomagnetic and related ...
Vestine, E. H.
core   +2 more sources

Extreme Value Analysis of Solar Green‐Line Corona During the Time Interval 1939–2025

Space Weather, Volume 24, Issue 5, May 2026.
Abstract Predicting the probability of extreme solar events is critical to understanding how to mitigate risks associated with space weather disasters, as their occurrence can pose a threat to life and infrastructure on Earth or in near‐Earth orbit. In the present study, extreme value theory is applied to the daily modified coronal index (MCI) for the ...
Miao Wan, Linhua Deng, Tingting Xu, Ruoxue Sha, Yuanyong Liu, Wenhao Cui, Qianrui Wu   +6 more
wiley   +1 more source

ASSESSMENT OF THE SEVERE GEOMAGNETIC STORM ON MAY 10-11, 2024 EFFECTS ON THE GEOMAGNETIC FIELD AND IONOSPHERE OVER THE INDONESIAN REGION

Rudarsko-geološko-naftni Zbornik
The severe geomagnetic storm on May 11, 2024, is the largest space weather phenomenon in the 25th solar cycle. This paper presents the impact of that severe geomagnetic storm (Dst = -412 nT) on the geomagnetic field and ionosphere over Indonesia ...
Anwar Santoso, Sismanto Sismanto, Rhorom Priyatikanto, Eddy Hartantyo, Emanuel Sungging Mumpuni, La Ode Muhammad Musafar Kilowasid, Abdul Rachman, Fitri Nuraeni, Siska Filawati, Erlansyah Erlansyah, Dadang Nurmali   +10 more
doaj   +1 more source