El Niño–Southern Oscillation effect on quasi-biennial oscillations of temperature diurnal tides in the mesosphere and lower thermosphere

Yang Yi Sun, Huixin Liu, Yasunobu Miyoshi, Libo Liu, Loren C. Chang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this study, we evaluate the El Niño–Southern Oscillation (ENSO) signals in the two dominant temperature diurnal tides, diurnal westward wavenumber 1 (DW1) and diurnal eastward wavenumber 3 (DE3) on the quasi-biennial oscillation (QBO) scale (18–34 months) from 50 to 100 km altitudes. The tides are derived from the 21-year (January 1996–February 2017) Ground-to-Topside model of Atmosphere and Ionosphere for Aeronomy (GAIA) temperature simulations and 15-year (February 2002–February 2017) Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED)/Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature observations. The results show that ENSO warm phases shorten the period (~ 2 years) of the QBO in DW1 amplitude near the equator and DE3 amplitude at low latitudes of the Northern Hemisphere. In contrast, the QBO period lengthens (~ 2.5 years) during the ENSO neutral and cold phases. Correlation analysis shows the long-lasting effect of ENSO on the tidal QBO in the mesosphere and lower thermosphere.[Figure not available: see fulltext.].

Original languageEnglish
Article number85
Journalearth, planets and space
Volume70
Issue number1
DOIs
Publication statusPublished - Dec 1 2018

Fingerprint

quasi-biennial oscillation
mesosphere
thermosphere
tides
tide
oscillation
oscillations
ionospheres
ionosphere
temperature
aeronomy
atmospheres
atmosphere
Northern Hemisphere
equators
sounding
tropical regions
energetics
broadband
effect

All Science Journal Classification (ASJC) codes

  • Geology
  • Space and Planetary Science

Cite this

El Niño–Southern Oscillation effect on quasi-biennial oscillations of temperature diurnal tides in the mesosphere and lower thermosphere. / Sun, Yang Yi; Liu, Huixin; Miyoshi, Yasunobu; Liu, Libo; Chang, Loren C.

In: earth, planets and space, Vol. 70, No. 1, 85, 01.12.2018.

Research output: Contribution to journalArticle

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AU - Chang, Loren C.

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