Results 121 to 130 of about 1,059 (171)
Telescopes team up to probe distant worlds. [PDF]
Mann A.
europepmc +1 more source
An Ionospheric Storm Scale Index Based on TEC: Comparative Analysis for China Region
Abstract Defining a standardized ionospheric storm scale is challenging given the ionosphere's inherent complexity and susceptibility to multiple driving factors. In this study, a novel ionospheric storm scale (ISS) index is developed based on statistical analysis of total electron content (TEC) data from 257 ground‐based GNSS stations across China ...
Shuangshuang Shi +8 more
wiley +1 more source
The Impact of Extended CO<sub>2</sub> Cross Sections on Temperate Anoxic Planet Atmospheres. [PDF]
Broussard W +5 more
europepmc +1 more source
Predicting Geomagnetic Activity in the Ascending and Declining Phases of the Solar Cycle
Abstract Most predictions of space climate, that is, the long‐term behavior of the solar‐terrestrial environment, have focused on forecasting the 11‐year sunspot cycle. Geomagnetic activity, on the other hand, has mainly been predicted in shorter, space weather timescales of up to days to weeks.
Timo Qvick +2 more
wiley +1 more source
Improvement of merging processes in N-body simulations in circumstellar disks
Zimmermann M, Pilat-Lohinger E.
europepmc +1 more source
Abstract We present the first real‐time predictions of coronal mass ejection (CME) magnetic structure and resulting geomagnetic impact at Earth for two events using far‐upstream observations from Solar Orbiter during March 2024. While our approach assumes idealized conditions for CME propagation and scaling, in situ magnetic field data from upstream ...
Emma E. Davies +8 more
wiley +1 more source
Alfvénic Poynting Flux Characterized by a Substorm‐SMC Cycle and Ionospheric Influence
Abstract Geomagnetic substorms are fundamental processes of explosive geospace energy release within the Earth's magnetotail, which are usually divided into three phases: the growth phase, the expansion phase, and the recovery phase. Large‐scale electromagnetic energy transport during a geomagnetic substorm is in the form of Alfvén waves, transmitting ...
Qianfeng Yin +9 more
wiley +1 more source
Mars' induced magnetosphere can form under radial interplanetary magnetic field. [PDF]
Lin R +16 more
europepmc +1 more source
Abstract Large ionospheric disturbances were observed over Europe during the extreme geomagnetic storm on 10 May 2024. This study analyzes GNSS‐derived total electron content (TEC) and all‐sky imager data to investigate these disturbances. Pronounced TEC enhancements, irregularities, and strong gradients were confined to the auroral region above the ...
Grzegorz Nykiel +5 more
wiley +1 more source
A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core. [PDF]
Mai X +44 more
europepmc +1 more source

