Theories on formation of an anomalous anticyclone in western North Pacific during El Niño: A review

Li, Tim; Wang, Bin; Wu, Bo; Zhou, Tianjun; Chang, C. P.; Zhang, Renhe

doi:10.1007/s13351-017-7147-6

Cited by 268 publications

(189 citation statements)

References 62 publications

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“…In addition, the warming of northern tropical Atlantic (NTA) in periods of S3 and are significant compared with the tropical eastern Pacific (Figures b–c). The NTA might have a capacitor effect similar to the NIO (Li et al, ). The warmer NTA has a significant effect on the strengthening and then westward extension of the WPSH via an anomalous westward extending overturning circulation (Hong et al, ; Zuo et al, ).…”

Section: Summary and Discussionmentioning

confidence: 99%

Subtropical High Affects Interdecadal Variability of Tropical Cyclone Genesis in the South China Sea

Hong

Sun

et al. 2019

JGR Atmospheres

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Interdecadal variability of tropical cyclone (TC) genesis in the South China Sea (SCS) during 1982–2015 is investigated using observations and atmospheric reanalysis data. TC genesis primarily occurs in the northern SCS (north of 13 °N) in July–September (summer), while in the southern SCS (south of 13 °N) in October–December (autumn). The TC genesis location is consistent with the climatological distribution of TC genesis potential index. Noticeably, the TC genesis frequency (TCGF) is relatively low in 1982–1993 and 2003–2015 while relatively high in 1994–2002 in summer in the SCS. In autumn, the TCGF shows an abrupt transition from high to low in the early 2000s in the SCS. It is found that such interdecadal change of TCGF is closely related to the east‐westward movement of the subtropical high (SH). When the SH is close to the SCS, large‐scale air subsidence, low‐level divergence, negative vorticity, and high pressure are prominent and inhabit TC genesis in the SCS. On the contrary, when the SH moves away from the SCS, environmental conditions become more favorable for TC genesis. In addition, the localized atmospheric intraseasonal variability can affect TCGF at interdecadal time scales as well.

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Section: Summary and Discussionmentioning

confidence: 99%

Subtropical High Affects Interdecadal Variability of Tropical Cyclone Genesis in the South China Sea

Hong

Sun

et al. 2019

JGR Atmospheres

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“…An El Niño event is frequently followed by La Niña event in the following year, which agrees with the oscillatory perspective. Later, Li et al (2017) argued that the wind anomalies over the far western equatorial Pacific, which is responsible for the rapid termination of the ENSO, is driven not by the Indian Ocean capacitor effect but by a part of the northwestern Pacific atmospheric circulation, via either atmospheric teleconnection (Wang et al, 2000(Wang et al, , 2001 or a local air-sea coupling process . Consequently, the cyclic nature of the El Niño-to-La Niña transition and the intermittent nature of the La Niña-to-El Niño transition reveal that the ENSO system is neither truly cyclic nor a series of events.…”

Section: Introductionmentioning

confidence: 99%

ENSO Transition Asymmetry: Internal and External Causes and Intermodel Diversity

Kim

2018

Geophysical Research Letters

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El Niño is frequently followed by La Niña, but the opposite case rarely happens. Here we explore a mechanism for such an asymmetrical transition and its future changes. Internally, the asymmetrical response of upper ocean waves against surface wind stress anomaly exerts a primary cause of El Niño–Southern Oscillation (ENSO) transition asymmetry. Externally, the asymmetrical capacitor effects of both Indian and Atlantic Oceans play some roles in driving the ENSO transition asymmetry via the interbasin interactions. The historical runs of Coupled Model Intercomparison Project Phase 5 show that the intermodel transition asymmetry is significantly correlated with the intermodel asymmetry in ocean wave response to surface wind forcing but not with that in the interbasin interactions. In addition, the El Niño‐to‐La Niña transition tendency was weaker in moderate global warming scenario runs (Representative Concentration Pathway 4.5) while slightly enhanced in strong warming scenario runs (Representative Concentration Pathway 8.5). Similar changes also appeared in the asymmetrical response of ocean waves against the surface wind forcing.

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“…Li et al . (; ) also proposed that the warm SST anomalies over the central Pacific during the El Niño decaying summer (Figure f) can impair the WNPAC through inducing cyclonic Rossby waves over the WNP during negative PDO phase. Furthermore, the anomalous SST warming over the tropical North Pacific is also robust, which exerts a remote impact on the WNPAC through inducing wave response (Rong et al ., ; Ham et al ., ; Chen et al ., ).…”

Section: Pdo Modulation Effectsmentioning

confidence: 90%

“…It often reaches maximum intensity during the mature winter of El Niño. The WNPAC is considered as a bridge connecting El Niño to the remote East Asian climate (e.g., Huang and Wu, ; Zhang et al ., ; Lau and Nath, ; ; Wang et al ., ; Wang and Zhang, ; Wu et al ., ; Li et al ., ; Kim et al ., ; Zhou et al ., ; Zhou and Wu, ; Yuan et al ., ; Yuan and Yang, ; Chen et al ., ; Wang and Wang, ; Feng and Chen, ; Li et al ., ; ; Wang et al ., ). For example, during the mature winter of an El Niño, the southwesterly wind anomalies on the northwestern flank of the WNPAC weaken the East Asian winter monsoon (EAWM) and lead to above‐normal temperature and precipitation over southeastern China (Zhang and Sumi, ; Zhou and Wu, ).…”

Section: Introductionmentioning

confidence: 97%

Linear respective roles of El Niño–Southern Oscillation and East Asian winter monsoon in the formation of the western North Pacific anticyclone

Feng

Chen

2019

Intl Journal of Climatology

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Based on reanalysis data, we investigate the respective roles of the East Asian winter monsoon (EAWM) and El Niño–Southern Oscillation (ENSO) in building an anomalous western North Pacific anticyclone (WNPAC) in winter to the succeeding summer. The isolated ENSO and EAWM parts (termed ENSOres and EAWMres, respectively) are acquired by removing the ENSO–EAWM interdependent part through linear regression. The results suggest that both ENSOres and EAWMres can produce a WNPAC in winter. The ENSOres‐related WNPAC dominantly covers the southern part of the western North Pacific, whereas the EAWMres‐related WNPAC over the northern part of the western North Pacific. In the subsequent spring and summer, only ENSOres yields a WNPAC, while EAWMres has no effect on the atmospheric circulation over the western North Pacific. Additionally, the Pacific Decadal Oscillation (PDO) can modulate the influence of ENSOres and EAWMres on the WNPAC. There tends to be a much stronger WNPAC associated with ENSOres (EAWMres) during positive (negative) PDO phases than during negative (positive) ones.

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Theories on formation of an anomalous anticyclone in western North Pacific during El Niño: A review

Cited by 268 publications

References 62 publications

Subtropical High Affects Interdecadal Variability of Tropical Cyclone Genesis in the South China Sea

Subtropical High Affects Interdecadal Variability of Tropical Cyclone Genesis in the South China Sea

ENSO Transition Asymmetry: Internal and External Causes and Intermodel Diversity

Linear respective roles of El Niño–Southern Oscillation and East Asian winter monsoon in the formation of the western North Pacific anticyclone

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