Auroral crackling sounds and Schumann resonances

Unto K. Laine

Auroral crackling sounds and Schumann resonances

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Observations of unusual sounds like claps, snaps, and cracklings from a serene sky under actively moving, bright aurora borealis have been reported during a long history. Since year 2000 the auroral sounds have been studied in Finland. In 2011 a sound source associated with the aurora was localized for the first time in the sky approximately 70 meters from the ground. To accommodate for the surprisingly low altitude of the source, a hypothesis that the sounds are produced by corona discharges in a temperature inversion layer at the observed altitude was published in 2016. The focus of the present paper is in the acoustic analysis of the crackling sounds that are sequences with complex temporal structures. It is shown that the sounds share similar rhythmical patterns, which are connected to the electromagnetic resonances in the atmosphere, also known as the Schumann resonances

Original language	English
Title of host publication	Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
Publisher	Canadian Acoustical Association
Number of pages	8
ISBN (Electronic)	9781999181000
Publication status	Published - 7 Jul 2019
MoE publication type	A4 Conference publication
Event	International Congress on Sound and Vibration - Montreal, Canada Duration: 7 Jul 2019 → 11 Jul 2019 Conference number: 26

Publication series

Name	Proceedings of the International Congress on Sound and Vibration
ISSN (Electronic)	2329-3675

Conference

Conference	International Congress on Sound and Vibration
Abbreviated title	ICSV
Country/Territory	Canada
City	Montreal
Period	07/07/2019 → 11/07/2019

Keywords

Auroral sounds
Geomagnetic storms
Schumann resonances

Access to Document

https://www.iiav.org/content/archives_icsv_last/2019_icsv26/content/papers/papers/full_paper_725_20190326192252831.pdf

Cite this

Laine, U. K. (2019). Auroral crackling sounds and Schumann resonances. In Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019 (Proceedings of the International Congress on Sound and Vibration). Canadian Acoustical Association. https://www.iiav.org/content/archives_icsv_last/2019_icsv26/content/papers/papers/full_paper_725_20190326192252831.pdf

@inproceedings{ef216eb398084ca49b5fb4ea72271ca5,

title = "Auroral crackling sounds and Schumann resonances",

abstract = "Observations of unusual sounds like claps, snaps, and cracklings from a serene sky under actively moving, bright aurora borealis have been reported during a long history. Since year 2000 the auroral sounds have been studied in Finland. In 2011 a sound source associated with the aurora was localized for the first time in the sky approximately 70 meters from the ground. To accommodate for the surprisingly low altitude of the source, a hypothesis that the sounds are produced by corona discharges in a temperature inversion layer at the observed altitude was published in 2016. The focus of the present paper is in the acoustic analysis of the crackling sounds that are sequences with complex temporal structures. It is shown that the sounds share similar rhythmical patterns, which are connected to the electromagnetic resonances in the atmosphere, also known as the Schumann resonances",

keywords = "Auroral sounds, Geomagnetic storms, Schumann resonances",

author = "Laine, \{Unto K.\}",

note = "Copyright kustantajalla. Rinnakkaistallentamisesta ei tietoa.; International Congress on Sound and Vibration, ICSV ; Conference date: 07-07-2019 Through 11-07-2019",

year = "2019",

month = jul,

day = "7",

language = "English",

series = "Proceedings of the International Congress on Sound and Vibration",

publisher = "Canadian Acoustical Association",

booktitle = "Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019",

address = "Canada",

}

Laine, UK 2019, Auroral crackling sounds and Schumann resonances. in Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. Proceedings of the International Congress on Sound and Vibration, Canadian Acoustical Association, International Congress on Sound and Vibration, Montreal, Canada, 07/07/2019. <https://www.iiav.org/content/archives_icsv_last/2019_icsv26/content/papers/papers/full_paper_725_20190326192252831.pdf>

Auroral crackling sounds and Schumann resonances. / Laine, Unto K.
Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019. Canadian Acoustical Association, 2019. (Proceedings of the International Congress on Sound and Vibration).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Auroral crackling sounds and Schumann resonances

AU - Laine, Unto K.

N1 - Conference code: 26

PY - 2019/7/7

Y1 - 2019/7/7

N2 - Observations of unusual sounds like claps, snaps, and cracklings from a serene sky under actively moving, bright aurora borealis have been reported during a long history. Since year 2000 the auroral sounds have been studied in Finland. In 2011 a sound source associated with the aurora was localized for the first time in the sky approximately 70 meters from the ground. To accommodate for the surprisingly low altitude of the source, a hypothesis that the sounds are produced by corona discharges in a temperature inversion layer at the observed altitude was published in 2016. The focus of the present paper is in the acoustic analysis of the crackling sounds that are sequences with complex temporal structures. It is shown that the sounds share similar rhythmical patterns, which are connected to the electromagnetic resonances in the atmosphere, also known as the Schumann resonances

AB - Observations of unusual sounds like claps, snaps, and cracklings from a serene sky under actively moving, bright aurora borealis have been reported during a long history. Since year 2000 the auroral sounds have been studied in Finland. In 2011 a sound source associated with the aurora was localized for the first time in the sky approximately 70 meters from the ground. To accommodate for the surprisingly low altitude of the source, a hypothesis that the sounds are produced by corona discharges in a temperature inversion layer at the observed altitude was published in 2016. The focus of the present paper is in the acoustic analysis of the crackling sounds that are sequences with complex temporal structures. It is shown that the sounds share similar rhythmical patterns, which are connected to the electromagnetic resonances in the atmosphere, also known as the Schumann resonances

KW - Auroral sounds

KW - Geomagnetic storms

KW - Schumann resonances

UR - https://www.scopus.com/pages/publications/85084012162

UR - https://www.iiav.org/content/archives_icsv_last/2019_icsv26/index.html

M3 - Conference article in proceedings

T3 - Proceedings of the International Congress on Sound and Vibration

BT - Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

PB - Canadian Acoustical Association

T2 - International Congress on Sound and Vibration

Y2 - 7 July 2019 through 11 July 2019

ER -

Auroral crackling sounds and Schumann resonances

Abstract

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Conference

Keywords

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