Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
Some considerations on the spectral features of meridional heat transport by transient eddies
Imperial College London, UK.
Imperial College London, UK.
2014 (English)In: Quarterly Journal of the Royal Meteorological Society, ISSN 0035-9009, E-ISSN 1477-870X, Vol. 140, no 681, p. 1377-1386Article in journal (Refereed) Published
Abstract [en]

The present study analyses extreme events in meridional atmospheric heat transport due to transient eddies in the time–frequency domain. The data used are the European Centre for Medium‐Range Weather Forecasts (ECMWF) ERA‐Interim reanalysis data, at the 850 mb pressure level and with daily, 0.7° latitude and longitude resolution.

Fast‐growing atmospheric modes are associated with large heat transport, which would suggest a link between transport extremes and growing baroclinic systems (defined here as motions in the 2.5–6 day band). However, by analyzing wavelet power spectra of transport extremes and of the corresponding meridional velocity and moist static energy temporal anomalies, this is found not to be the case. In fact, baroclinic systems provide only a modest contribution to the integrated power of the extreme heat transport event spectrum. The transport extremes are driven by very precise phase and coherence relationships between the velocity and moist static energy anomalies, acting over a broad range of frequencies (2.5–30 days). Planetary‐scale motions (k = 0–4) with periods beyond 6 days play a key role in this framework.

Place, publisher, year, edition, pages
2014. Vol. 140, no 681, p. 1377-1386
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-161540DOI: 10.1002/qj.2224OAI: oai:DiVA.org:su-161540DiVA, id: diva2:1259512
Available from: 2018-10-30 Created: 2018-10-30 Last updated: 2018-10-31Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Search in DiVA

By author/editor
Messori, Gabriele
In the same journal
Quarterly Journal of the Royal Meteorological Society
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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