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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F13%3A10191476%21RIV14-GA0-11320___
rdf:type
n11:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1002/jgra.50468
dcterms:description
We present an automated two-step detection algorithm for identification of interplanetary (IP) shocks regardless their type in a real-time data stream. This algorithm is aimed for implementation on board the future Solar Orbiter mission for triggering the transmission of the high-resolution data to the Earth. The first step of the algorithm is based on a determination of a quality factor, Q indicating abrupt changes of plasma parameters (proton density and bulk velocity) and magnetic field strength. We test two sets of weighting coefficients for Q determination and propose the second step consisting of three additional constraints that increase the effectiveness of the algorithm. We checked the algorithm using Wind (at 1 AU) and Helios (at distances from 0.29 to 1 AU) data and compared obtained results with already existing lists of IP shocks. The efficiency of the presented algorithm for the Wind shock lists varies from 60% to 84% for two Q thresholds. The final shock candidate list provided by the presented algorithm contains the real IP shocks, as well as different discontinuities. The detection rate of the IP shocks equals to 64% and 29% for two Q thresholds. The algorithm detected all IP shocks associated with the solar wind transient structures triggering intense (Dst<-100nT) geomagnetic storms. We present an automated two-step detection algorithm for identification of interplanetary (IP) shocks regardless their type in a real-time data stream. This algorithm is aimed for implementation on board the future Solar Orbiter mission for triggering the transmission of the high-resolution data to the Earth. The first step of the algorithm is based on a determination of a quality factor, Q indicating abrupt changes of plasma parameters (proton density and bulk velocity) and magnetic field strength. We test two sets of weighting coefficients for Q determination and propose the second step consisting of three additional constraints that increase the effectiveness of the algorithm. We checked the algorithm using Wind (at 1 AU) and Helios (at distances from 0.29 to 1 AU) data and compared obtained results with already existing lists of IP shocks. The efficiency of the presented algorithm for the Wind shock lists varies from 60% to 84% for two Q thresholds. The final shock candidate list provided by the presented algorithm contains the real IP shocks, as well as different discontinuities. The detection rate of the IP shocks equals to 64% and 29% for two Q thresholds. The algorithm detected all IP shocks associated with the solar wind transient structures triggering intense (Dst<-100nT) geomagnetic storms.
dcterms:title
Automated interplanetary shock detection and its application to Wind observations Automated interplanetary shock detection and its application to Wind observations
skos:prefLabel
Automated interplanetary shock detection and its application to Wind observations Automated interplanetary shock detection and its application to Wind observations
skos:notation
RIV/00216208:11320/13:10191476!RIV14-GA0-11320___
n11:predkladatel
n19:orjk%3A11320
n3:aktivita
n16:I n16:P
n3:aktivity
I, P(GA205/09/0112), P(GAP209/12/2394)
n3:cisloPeriodika
8
n3:dodaniDat
n14:2014
n3:domaciTvurceVysledku
n8:9496726 n8:5876265 n8:1504126
n3:druhVysledku
n18:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
62573
n3:idVysledku
RIV/00216208:11320/13:10191476
n3:jazykVysledku
n21:eng
n3:klicovaSlova
Instruments and techniques; Interplanetary shocks
n3:klicoveSlovo
n4:Interplanetary%20shocks n4:Instruments%20and%20techniques
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[D0A5C828E4AC]
n3:nazevZdroje
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
n3:obor
n10:BL
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n9:GAP209%2F12%2F2394 n9:GA205%2F09%2F0112
n3:rokUplatneniVysledku
n14:2013
n3:svazekPeriodika
118
n3:tvurceVysledku
Šafránková, Jana Němeček, Zdeněk Maksimovic, M. Kruparova, O. Krupar, V. Santolík, Ondřej
n3:wos
000324992300008
s:issn
2169-9380
s:numberOfPages
11
n5:doi
10.1002/jgra.50468
n17:organizacniJednotka
11320