Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Wave influence on polar mesosphere summer echoes above Wasa: experimental and model studies
Swedish Inst Space Phys, S-98128 Kiruna, Sweden..
Swedish Inst Space Phys, S-98128 Kiruna, Sweden..
GATS Inc, Driggs, ID 83422 USA..
Swedish Inst Space Phys, S-98128 Kiruna, Sweden..
Show others and affiliations
Responsible organisation
2012 (English)In: Annales Geophysicae, ISSN 0992-7689, E-ISSN 1432-0576, Vol. 30, no 8, 1143-1157 p.Article in journal (Refereed) Published
Abstract [en]

Comprehensive analysis of the wave activity in the Antarctic summer mesopause is performed using polar mesospheric summer echoes (PMSE) measurements for December 2010-January 2011. The 2-day planetary wave is a statistically significant periodic oscillation in the power spectrum density of PMSE power. The strongest periodic oscillation in the power spectrum belongs to the diurnal solar tide; the semi-diurnal solar tide is found to be a highly significant harmonic oscillation as well. The inertial-gravity waves are extensively studied by means of PMSE power and wind components. The strongest gravity waves are observed at periods of about 1, 1.4, 2.5 and 4 h, with characteristic horizontal wavelengths of 28, 36, 157 and 252 km, respectively. The gravity waves propagate approximately in the west-east direction over Wasa (Antarctica). A detailed comparison between theoretical and experimental volume reflectivity of PMSE, measured at Wasa, is made. It is demonstrated that a new expression for PMSE reflectivity derived by Varney et al. (2011) is able to adequately describe PMSE profiles both in the magnitude and in height variations. The best agreement, within 30%, is achieved when mean values of neutral atmospheric parameters are utilized. The largest contribution to the formation and variability of the PMSE layer is explained by the ice number density and its height gradient, followed by wave-induced perturbations in buoyancy period and the turbulent energy dissipation rate.

Place, publisher, year, edition, pages
2012. Vol. 30, no 8, 1143-1157 p.
Keyword [en]
Atmospheric composition and structure, Middle atmosphere, composition and chemistry
Research subject
SWEDARP 2007/08, MARA 2007/08; SWEDARP 2010/11, MARA 2010/11
Identifiers
URN: urn:nbn:se:polar:diva-2273DOI: 10.5194/angeo-30-1143-2012ISI: 000308288800004OAI: oai:DiVA.org:polar-2273DiVA: diva2:857814
Available from: 2015-09-30 Created: 2015-09-30 Last updated: 2015-09-30

Open Access in DiVA

No full text

Other links

Publisher's full text
In the same journal
Annales Geophysicae

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 18 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf