Forbush Decreases and Geomagnetic Storms During a Highly Disturbed Solar and Interplanetary Period, 4-10 September 2017
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00504409" target="_blank" >RIV/61389005:_____/19:00504409 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1029/2018SW001941" target="_blank" >https://doi.org/10.1029/2018SW001941</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2018SW001941" target="_blank" >10.1029/2018SW001941</a>
Alternative languages
Result language
angličtina
Original language name
Forbush Decreases and Geomagnetic Storms During a Highly Disturbed Solar and Interplanetary Period, 4-10 September 2017
Original language description
Features and peculiarities of the cosmic ray intensity (CRI) and the geomagnetic activity, along with several solar plasma and interplanetary magnetic field, during the period 4-10 September 2017 are studied. The period was characterized by strong solar activity: Several solar flares occurred, several halo coronal mass ejections (CMEs) were ejected in space. In the near-Earth interplanetary space, the CMEs driving shock(s) and sheath(s) were identified. At the Earth, strong Forbush decreases in CRI and geomagnetic storms were observed. Several large solar flares, one of them of very high X-ray importance (X9.3) and three halo CMEs were detected in the solar atmosphere. Two shock-associated interplanetary CMEs were observed during that interval in near-Earth space, the latter and faster one arrived even as the ejecta of the earlier one was still crossing. Variations in interplanetary plasma and field parameters during, before, and after the Forbush decreases and geomagnetic storms that occurred during the considered period were examined. A detailed time-lagged correlation analysis using data at three different temporal resolutions (hourly, 5-min, and 1-min) was also performed. Cross correlations of time series of CRI with geomagnetic activity during the period 4-10 September 2017 are computed. This cross-correlation analysis between CRI variability (defined as the difference of the CRI count rate between the current and the previous time step) and the Dst indicates a delay of Dst by 3-4hr.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
<a href="/en/project/EF15_003%2F0000481" target="_blank" >EF15_003/0000481: Research Center of Cosmic Rays and Radiation Events in the Atmosphere</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Space Weather
ISSN
1542-7390
e-ISSN
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Volume of the periodical
17
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
487-496
UT code for WoS article
000464657700008
EID of the result in the Scopus database
2-s2.0-85063583225