Intensity of climate variability derived from the satellite and MERRA reanalysis temperatures: AO, ENSO, and QBO

Jung Moon Yoo, Young In Won, Myeong Jae Jeong, Kyu Myong Kim, Dong Bin Shin, Yu Ri Lee, Young Jun Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Satellite measurements (Atmospheric InfraRed Sounder/Advanced Microwave Sounding Unit-A, MODerate resolution Imaging Spectroradiometer) and the Modern Era Retrospective-analysis for Research and Applications (MERRA) reanalysis have been utilized to analyze the relative influence of the climate variability (AO: Arctic Oscillation, ENSO: El Niño-Southern Oscillation, QBO: Quasi-Biennial Oscillation) on the zonal-mean temperature and wind variations over the globe from September 2002 to August 2011. We also extended the usage of MERRA data for the period of 1979-2011; furthermore, three climate indices of AO, NINO3.4, and QBO were used as the corresponding climate indicators. The correlations between the temperature anomalies and the climate indices indicate that the tropospheric temperature variability in the mid-latitude (30-60N) linked to both AO and ENSO has been more pronounced over ocean than over land. However, the low stratospheric temperature variability in the mid-latitude is mainly associated with ENSO and QBO. The north-south symmetric patterns over the globe are seen in the wind anomaly distributions for ENSO and QBO, but not for AO. The ENSO events are globally vigorous but also localized during the recent 9 years compared with those based on the period of 1979-2011. The tropospheric warming and stratospheric cooling phenomena during this period are more remarkable in the recent 9 years, although according to IPCC (2012). their linkage to the ENSO variability is still uncertain. The ENSO is found to have more significant impact on the tropospheric and low stratosphere temperature variability over the tropics in the recent period, consistent with more active zonal wind meridional circulations. The discrepancies between satellite observations and MERRA are also discussed. The estimated relative impact of the three major concurrent large-scale climate phenomena on regional temperature variability can be of great use in its long-term predictability.

Original languageEnglish
Pages (from-to)15-27
Number of pages13
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume95-96
DOIs
Publication statusPublished - 2013 Apr 1

Fingerprint

quasi-biennial oscillation
El Nino-Southern Oscillation
climate
globes
temperature
wind variations
Advanced Microwave Sounding Unit
anomalies
Southern Oscillation
satellite observation
MODIS (radiometry)
AMSU
AIRS
Arctic Oscillation
stratosphere
tropical regions
linkages
meridional circulation
zonal wind
analysis

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science

Cite this

Yoo, Jung Moon ; Won, Young In ; Jeong, Myeong Jae ; Kim, Kyu Myong ; Shin, Dong Bin ; Lee, Yu Ri ; Cho, Young Jun. / Intensity of climate variability derived from the satellite and MERRA reanalysis temperatures : AO, ENSO, and QBO. In: Journal of Atmospheric and Solar-Terrestrial Physics. 2013 ; Vol. 95-96. pp. 15-27.
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Intensity of climate variability derived from the satellite and MERRA reanalysis temperatures : AO, ENSO, and QBO. / Yoo, Jung Moon; Won, Young In; Jeong, Myeong Jae; Kim, Kyu Myong; Shin, Dong Bin; Lee, Yu Ri; Cho, Young Jun.

In: Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 95-96, 01.04.2013, p. 15-27.

Research output: Contribution to journalArticle

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T1 - Intensity of climate variability derived from the satellite and MERRA reanalysis temperatures

T2 - AO, ENSO, and QBO

AU - Yoo, Jung Moon

AU - Won, Young In

AU - Jeong, Myeong Jae

AU - Kim, Kyu Myong

AU - Shin, Dong Bin

AU - Lee, Yu Ri

AU - Cho, Young Jun

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AB - Satellite measurements (Atmospheric InfraRed Sounder/Advanced Microwave Sounding Unit-A, MODerate resolution Imaging Spectroradiometer) and the Modern Era Retrospective-analysis for Research and Applications (MERRA) reanalysis have been utilized to analyze the relative influence of the climate variability (AO: Arctic Oscillation, ENSO: El Niño-Southern Oscillation, QBO: Quasi-Biennial Oscillation) on the zonal-mean temperature and wind variations over the globe from September 2002 to August 2011. We also extended the usage of MERRA data for the period of 1979-2011; furthermore, three climate indices of AO, NINO3.4, and QBO were used as the corresponding climate indicators. The correlations between the temperature anomalies and the climate indices indicate that the tropospheric temperature variability in the mid-latitude (30-60N) linked to both AO and ENSO has been more pronounced over ocean than over land. However, the low stratospheric temperature variability in the mid-latitude is mainly associated with ENSO and QBO. The north-south symmetric patterns over the globe are seen in the wind anomaly distributions for ENSO and QBO, but not for AO. The ENSO events are globally vigorous but also localized during the recent 9 years compared with those based on the period of 1979-2011. The tropospheric warming and stratospheric cooling phenomena during this period are more remarkable in the recent 9 years, although according to IPCC (2012). their linkage to the ENSO variability is still uncertain. The ENSO is found to have more significant impact on the tropospheric and low stratosphere temperature variability over the tropics in the recent period, consistent with more active zonal wind meridional circulations. The discrepancies between satellite observations and MERRA are also discussed. The estimated relative impact of the three major concurrent large-scale climate phenomena on regional temperature variability can be of great use in its long-term predictability.

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