Results 81 to 90 of about 306,228 (194)

Assessing the Geoeffectiveness of Stream Interaction Regions through Physically Interpretable Machine Learning

open access: yesThe Astrophysical Journal
Stream interaction regions (SIRs) are common solar wind structures that mainly drive moderate geomagnetic storms, especially during the declining and minimum phases of the solar cycle. Despite substantial progress in identifying their solar wind drivers,
Yudong Ye   +4 more
doaj   +1 more source

Resource-aware mining of data streams [PDF]

open access: yes, 2005
Mining data streams has raised a number of research challenges for the data mining community. These challenges include the limitations of computational resources, especially because mining streams of data most likely be done on a mobile device with ...
Gaber, Mohamed Medhat   +11 more
core   +1 more source

GALACTIC COSMIC-RAY INTENSITY MODULATION BY COROTATING INTERACTION REGION STREAM INTERFACES AT 1 au

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We present a new model that couples galactic cosmic-ray (GCR) propagation with magnetic turbulence transport and the MHD background evolution in the heliosphere. The model is applied to the problem of the formation of corotating interaction regions (CIRs) during the last solar minimum from the period between 2007 and 2009.
X. Guo, V. Florinski
openaire   +1 more source

Radial Evolution of Effective Polytropic Index in Stream Interaction Regions from PSP to MAVEN

open access: yesThe Astrophysical Journal
Stream interaction regions (SIRs) are key large-scale structures in the solar wind that regulate the transport of mass, momentum, and energy across the heliosphere.
Mohit Shah   +11 more
doaj   +1 more source

Using sunRunner3D to interpret the global structure of the heliosphere from in situ measurements

open access: yesJournal of Space Weather and Space Climate
Understanding the large-scale three-dimensional structure of the inner heliosphere, while important in its own right, is crucial for space weather applications, such as forecasting the time of arrival and propagation of coronal mass ejections (CMEs ...
González-Avilés José Juan   +4 more
doaj   +1 more source

Observations of long-lived solar wind streams during 1990-1993

open access: yesAnnales Geophysicae
Interplanetary scintillation (IPS) can be used to identify changes in solar wind parameters over a wide range in heliographic latitude and elongation and constrain models of its large-scale structure, velocity and density.
G. Woan
doaj  

Interplanetary gas. XXII - Interaction of comet Kohoutek's ion tail with the compression region of a solar-wind corotating stream

open access: yesThe Astrophysical Journal, 1978
An apparently successful identification of a comet-tail feature with a solar-wind event is presented. Photographs of comet Kohoutek 1973f show a large-scale disturbance in the middle and outer regions of the ion tail early on January 20 of 1974. On the previous and succeeding days the comet had, however, a 'normal' and less active appearance.
M. B., Jr. Niedner   +2 more
openaire   +1 more source

CLASSIFICATION ALGORITHM FOR MHD WAVELET-SKELETON SPECTRAL IMAGES OF GEOEFFECTIVE PLASMA FLOWS IN THE SOLAR WIND

open access: yesВестник Мининского университета, 2017
The paper presents a new method for the identification of plasma flows in the solar wind by self-learning classification neural network using their spectral features in the range of magnetic hydrodynamics.
N. A. Barkhatov   +2 more
doaj   +2 more sources

Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions

open access: yesThe Astrophysical Journal Supplement Series
In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere.
Cong Wang   +4 more
doaj   +1 more source

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