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Airglow observations of orographic, volcanic and meteorological infrasound signatures

Pilger, Christoph and Schmidt, Carsten and Streicher, Florian and Wüst, Sabine and Bittner, Michael (2013) Airglow observations of orographic, volcanic and meteorological infrasound signatures. Journal of Atmospheric and Solar-Terrestrial Physics, 104, pp. 55-66. Elsevier. DOI: http://dx.doi.org/10.1016/j.jastp.2013.08.008 ISSN 1364-6826

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Official URL: http://www.elsevier.com/locate/jastp

Abstract

Infrasound is generated by several different natural hazards as, e.g., volcanic eruptions and severe weather, but also due to orography (flow over mountains) or anthropogenic sources (e.g. explosions). It propagates from the surface to the middle and upper atmosphere, is characterized by pressure and temperature fluctuations on its path and is reflected back to the ground in so-called ducts. The effects of infrasound in terms of temperature fluctuations in the middle atmosphere, especially in the mesopause altitude region (80-100 km), can be observed using ground-based airglow spectrometers as, e.g., the GRIPS (GRound-based Infrared P19 branch Spectrometers) instruments of the German Aerospace Center (DLR). A method to identify and spectrally analyse infrasound signatures in mesopause temperature time series derived from nocturnal GRIPS airglow observations is presented. The automatic identification of spectral features in the observations and association to distinct infrasound sources is described. Source verification is performed by considering weather situations, volcanic activity and infrasound propagation modelling. The results in terms of identified infrasound sources of orographic, volcanic and meteorological origin are presented and discussed for different examples of a case study.

Item URL in elib:https://elib.dlr.de/84081/
Document Type:Article
Title:Airglow observations of orographic, volcanic and meteorological infrasound signatures
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pilger, ChristophUniversität AugsburgUNSPECIFIED
Schmidt, Carstencarsten.schmidt (at) dlr.deUNSPECIFIED
Streicher, FlorianDLRUNSPECIFIED
Wüst, Sabinesabine.wuest (at) dlr.deUNSPECIFIED
Bittner, Michaelmichael.bittner (at) dlr.deUNSPECIFIED
Date:2013
Journal or Publication Title:Journal of Atmospheric and Solar-Terrestrial Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:104
DOI :http://dx.doi.org/10.1016/j.jastp.2013.08.008
Page Range:pp. 55-66
Publisher:Elsevier
ISSN:1364-6826
Status:Published
Keywords:Infrasound; Mesopause Airglow; Severe Weather; Volcanic Activity
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Atmosphere
Deposited By: Wagner, Karla
Deposited On:26 Nov 2013 14:57
Last Modified:30 May 2019 22:05

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