Results 21 to 30 of about 111 (106)
A Model for Recommending Historical Similar Events in Forecasting CME Geoeffectiveness
Abstract Coronal mass ejections (CMEs) are among the key solar eruptive activities, triggering space weather disturbances. Thus, forecasting their geoeffectiveness has become a research focus. This study constructs a model to recommend similar events for forecasting the geoeffectiveness of CMEs.
Yurong Shi +4 more
wiley +1 more source
Solar Energetic Particle Prediction in the Inner Heliosphere Using Deep Learning and PSP/IS⊙IS Data
Abstract Solar events, such as coronal mass ejections and solar flares, accelerate large numbers of energetic charged particles, producing solar energetic particle (SEP) events that can harm astronauts, damage satellites, and potentially damage infrastructure on Earth.
Tate Hutchins +12 more
wiley +1 more source
How Does the Definition of a Geomagnetic Storm Affect the Contents of the Resulting Storm List?
Abstract A geomagnetic storm is a significant and prolonged disturbance of the Earth's magnetic field caused by an enhancement of the ring current. Storms are typically identified using magnetic field measurements from multiple ground‐based magnetometers, and the corresponding dates and times of multiple storms can be collated to form a storm list ...
Atlas M. Patrick +6 more
wiley +1 more source
Solar hydrogen-Lyman continuum observations with SOHO/SUMER [PDF]
In this work we analyze the emission of the H Lyman continuum (HI LyC) in the Quiet Sun (QS) and a solar prominence, in order to derive information on the temperature of the emitting plasma. We used the spectral atlas obtained with SOHO/SUMER detector A in 1999 (Parenti et al. 2005, A&A, 443, 679). The high spectral resolution of this instrument allows
S. Parenti, P. Lemaire, J.-C. Vial
openaire +1 more source
Human‐Interpretable SEP Event Prediction Using White‐Box Explainable AI
Abstract Solar energetic particle (SEP) events pose radiation risks to astronauts and space systems, making their prediction essential. Although various prediction models have been developed, most machine learning (ML)‐based models lack interpretability; that is, it is difficult to explain the reasons behind individual predictions.
Naho Fujita +4 more
wiley +1 more source
Ruth Glass: London's Gentrification Urban Visionary
ABSTRACT This paper analyses the contribution made by Ruth Glass to our understanding of gentrification and class change in London. It argues that not only was she remarkably ahead of her time in identifying and naming this important new phenomenon over 60 years ago, but that her discussion of the social and housing market impacts of gentrification ...
Chris Hamnett
wiley +1 more source
SUMER/SOHO Filament Observations in Selected Lyman Lines [PDF]
AbstractOn September 21, 1996 a filament located in a region close to an enhanced network was observed with the SOHO SUMER and CDS instruments. Four Lyman lines have been detected (Lδ, Lϵ, L-6, L-7) by SUMER in the raster mode. We have corrected the spectral data for flatfield and destreching and made wavelength and absolute intensity calibrations.
B. Schmieder +3 more
openaire +1 more source
Abstract This study uses a novel approach to infer the solar soft X‐ray (SXR) irradiance from Auger photoelectron fluxes. Solar SXR irradiance is highly variable, particularly during solar flares. Solar SXR photons at ∼< ${\sim} < $2.5 nm produce oxygen Auger photoelectrons by photoionizing atmospheric constituents. More specifically, we derive the fit
Shaosui Xu +3 more
wiley +1 more source
The MANA Magnetometer Array, and Magnetic Observations Across New Zealand From 2024
Abstract This paper describes the Magnetometer Array for New Zealand Aotearoa, or MANA, completed in 2023. The network consists of five new variometer sites to complement the existing Eyrewell geomagnetic observatory. Here, we describe the technical details and capabilities of the network, including the hardware and software used. Data products include
John Malone‐Leigh +8 more
wiley +1 more source
SOHO CDS and SUMER observations of quiescent filaments and their interpretation [PDF]
Three quiescent filaments located at different positions on the solar disk were selected from the SOHO CDS data archive: one of them was also observed by SUMER in the raster mode. We investigate the filament-corona transition region (PCTR) emission, to determine whether it is indeed negligible, as found in one previously-analysed case. The observations
G. Del Zanna +2 more
openaire +1 more source

