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A study of magnetic storm current sy...

Cade, William Bancker, III.

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A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms.

Record Type:	Electronic resources : Monograph/item
Title/Author:	A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms./
Author:	Cade, William Bancker, III.
Description:	123 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0249.
Contained By:	Dissertation Abstracts International64-01B.
Subject:	Physics, Atmospheric Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3077199
ISBN:	049397718X

A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms.
Cade, William Bancker, III.

A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms. - 123 p.

Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0249.

Thesis (Ph.D.)--Utah State University, 2002.

Ground-based magnetograms are used to measure the intensity of magnetic storms, yet the relative contributions of the current systems involved have been debated for decades. Wavelet analysis is a technique to analyze signals with complex content and is well suited to the analysis of time-series data. I applied wavelet analysis to ground magnetograms to extract information about magnetic storms current systems. The analysis showed three components at low- and mid-latitudes: 3--6 hours, 12--25 hours, and >30 hours, with each most likely associated with different current systems. Wavelet analysis also enabled the separation of directly driven and unloading components in high-latitude magnetic data. This allowed a comparison of low- and high-latitude substorm measurements to calculate the configuration of the substorm current wedge. Reasonable wedge configurations were found that matched the magnetic measurements.

ISBN: 049397718XSubjects--Topical Terms:

1019431
Physics, Atmospheric Science.

A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms.
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100 1 $a Cade, William Bancker, III. $3 1953438
245 1 2 $a A study of magnetic storm current systems by the application of wavelet analysis to ground-based magnetograms.
300 $a 123 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-01, Section: B, page: 0249.
500 $a Major Professor: Jan J. Sojka.
502 $a Thesis (Ph.D.)--Utah State University, 2002.
520 $a Ground-based magnetograms are used to measure the intensity of magnetic storms, yet the relative contributions of the current systems involved have been debated for decades. Wavelet analysis is a technique to analyze signals with complex content and is well suited to the analysis of time-series data. I applied wavelet analysis to ground magnetograms to extract information about magnetic storms current systems. The analysis showed three components at low- and mid-latitudes: 3--6 hours, 12--25 hours, and >30 hours, with each most likely associated with different current systems. Wavelet analysis also enabled the separation of directly driven and unloading components in high-latitude magnetic data. This allowed a comparison of low- and high-latitude substorm measurements to calculate the configuration of the substorm current wedge. Reasonable wedge configurations were found that matched the magnetic measurements.
590 $a School code: 0241.
650 4 $a Physics, Atmospheric Science. $3 1019431
650 4 $a Geophysics. $3 535228
690 $a 0608
690 $a 0373
710 2 0 $a Utah State University. $3 960049
773 0 $t Dissertation Abstracts International $g 64-01B.
790 1 0 $a Sojka, Jan J., $e advisor
790 $a 0241
791 $a Ph.D.
792 $a 2002
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3077199