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Statistical analysis of infrasound signatures in airglow observations: Indications for acoustic resonance

Pilger, Christoph and Schmidt, Carsten and Bittner, Michael (2013) Statistical analysis of infrasound signatures in airglow observations: Indications for acoustic resonance. Journal of Atmospheric and Solar-Terrestrial Physics, 93, pp. 70-79. Elsevier. DOI: 10.1016/j.jastp.2012.11.011 ISSN 1364-6826

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Official URL: http://ac.els-cdn.com/S1364682612002842/1-s2.0-S1364682612002842-main.pdf?_tid=e67f4bd6-24ad-11e5-a84d-00000aab0f27&acdnat=1436276682_8b7ef608c4be8a50f1339fcea6915f2b

Abstract

The detection of infrasonic signals in temperature time series of the mesopause altitude region (at about 80-100 km) is performed at the German Remote Sensing Data Center of the German Aerospace Center (DLR-DFD) using GRIPS instrumentation (GRound-based Infrared P-branch Spectrometers). Mesopause temperature values with a temporal resolution of up to 10 seconds are derived from the observation of nocturnal airglow emissions and permit the identification of signals within the long-period infrasound range. Spectral intensities of wave signatures with periods between 2.5 and 10 minutes are estimated applying the wavelet analysis technique to one minute mean temperature values. Selected events as well as the statistical distribution of 40 months of observation are presented and discussed with respect to resonant modes of the atmosphere. The mechanism of acoustic resonance generated by strong infrasonic sources is a potential explanation of distinct features with periods between 3 and 5 minutes observed in the dataset.

Item URL in elib:https://elib.dlr.de/82181/
Document Type:Article
Title:Statistical analysis of infrasound signatures in airglow observations: Indications for acoustic resonance
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pilger, ChristophUniversity AugsburgUNSPECIFIED
Schmidt, Carstencarsten.schmidt (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:93
DOI :10.1016/j.jastp.2012.11.011
Page Range:pp. 70-79
Publisher:Elsevier
ISSN:1364-6826
Status:Published
Keywords:Infrasound Mesopause airglow Acoustic resonance
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: Bittner, Prof.Dr.rer.nat. Michael
Deposited On:02 May 2013 09:26
Last Modified:30 May 2019 22:05

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