Results 11 to 20 of about 23,807 (281)

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

Relations Among Sunspots, CMEs and Geomagnetic Storms in Solar Cycle 23 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
We compare the relation among the annual distribution of sunspots: coronal mass ejections (CMEs) and geomagnetic storms and North-South asymmetry during solar cycle 23.
Su-Lyun Rho, Heon-Young Chang
doaj   +1 more source

The Frequency‐Domain Characterization of Cosmic Ray Intensity Variations Before Forbush Decreases Associated With Geomagnetic Storms

open access: yesSpace Weather, 2022
Nonrecurrent geomagnetic storms caused by Coronal Mass Ejection (CME) can induce serious impacts on space‐ and ground‐based equipment. However, these nonrecurrent geomagnetic storms are hard to predict since CMEs are not periodic.
Qian Ye   +4 more
doaj   +1 more source

Relation of Extreme Ionospheric Events with Geomagnetic and Meteorological Activity

open access: yesAtmosphere, 2022
This paper studies extreme ionospheric events and their relations with geomagnetic and meteorological activity. With the long observation series at the Irkutsk (52° N, 104° E) and Kaliningrad (54° N, 20° E) ionosondes we obtained the datasets of ...
Konstantin G. Ratovsky   +3 more
doaj   +1 more source

A logistic regression model for predicting the occurrence of intense geomagnetic storms [PDF]

open access: yesAnnales Geophysicae, 2005
A logistic regression model is implemented for predicting the occurrence of intense/super-intense geomagnetic storms. A binary dependent variable, indicating the occurrence of intense/super-intense geomagnetic storms, is regressed against a series ...
N. Srivastava
doaj   +1 more source

Using Temporal Relationship of Thermospheric Density With Geomagnetic Activity Indices and Joule Heating as Calibration for NRLMSISE‐00 During Geomagnetic Storms

open access: yesSpace Weather, 2022
The responses of thermospheric densities to geomagnetic activity indices and Joule heating are analyzed during 265 geomagnetic storms and can be used to calibrate the model NRLMSISE‐00 with neutral mass density observed at 400 km based on the CHAMP ...
Xin Wang   +11 more
doaj   +1 more source

Ionosphere over Eastern North Atlantic Midlatitudinal Zone during Geomagnetic Storms

open access: yesAtmosphere, 2023
The ionospheric response at middle latitudes to geomagnetic storms is not yet very well understood. Total electron content (TEC) variations associated with eight strong geomagnetic storms between 2015 and 2022 obtained from GNSS receivers in the eastern ...
Teresa Barata   +4 more
doaj   +1 more source

On extreme geomagnetic storms [PDF]

open access: yesJournal of Space Weather and Space Climate, 2014
Extreme geomagnetic storms are considered as one of the major natural hazards for technology-dependent society. Geomagnetic field disturbances can disrupt the operation of critical infrastructures relying on space-based assets, and can also result in terrestrial effects, such as the Quebec electrical disruption in 1989. Forecasting potential hazards is
Cid Tortuero, Consuelo   +4 more
openaire   +3 more sources

The presence of large sunspots near the central solar meridian at the times of major geomagnetic storms [PDF]

open access: yesAnnales Geophysicae, 2009
A further study is made of the validity of a technique developed by the authors to identify historical occurrences of intense geomagnetic storms, which is based on finding approximately coincident observations of sunspots and aurorae recorded in East ...
D. M. Willis   +3 more
doaj   +1 more source

Energetic Particle Precipitation during Extreme Space Weather Events [PDF]

open access: yesE3S Web of Conferences, 2020
Here we provide a selection of extreme geomagnetic storms of the last century based on NOAA classification which lead to the energetic particle precipitation (EPP).
Yakovchuk Olesya, Mironova Irina
doaj   +1 more source

Home - About - Disclaimer - Privacy