Influence of the North Pacific Victoria Mode on the Madden–Julian Oscillation

Wen, Tian; Chen, Quanliang; Li, Jianping; Ding, Ruiqiang; Tseng, Yu‐Heng; Hou, Zhaolu; Li, Xumin

doi:10.3389/feart.2020.584001

Cited by 3 publications

(2 citation statements)

References 52 publications

(67 reference statements)

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“…In addition, the continental high can prevent cold air from the Arctic to intersect with warm air from the equator, resulting in a build‐up of warm air that can easily lead to heatwaves (Luo et al ., 2020). In general, the sea‐land‐atmosphere interaction has been considered as one of the most important factors affecting atmospheric circulations and climate events (Zhang et al ., 2011; Bollasina and Ming, 2013; Du et al ., 2019; Wen et al ., 2020; Yang et al ., 2020). Previous studies have found that warmer sea surface temperatures (SSTs) in the North Atlantic and North Pacific could enhance the temperature in North China (Zhang et al ., 2018a; Ding et al ., 2020; Zhang et al ., 2020).…”

Section: Introductionmentioning

confidence: 99%

Two spatial types of North China heatwaves and their possible links to Barents‐Kara Sea ice changes

Zhang

Zeng

Yang

et al. 2022

Intl Journal of Climatology

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Heatwaves of different spatial types can cause various impacts. Based on the spatial heatwave intensity, 47 North China heatwaves from 1961 to 2019 could be classified into two categories: the S‐type with a centre in the south and the N‐type in the north. There were more N‐type events (36) than the S‐type (11). Observational analysis indicated that under atmospheric circulations favourable to North China heatwaves (e.g. the enhanced continental high), there is a linkage between the sea ice concentration (SIC) changes in the Barents‐Kara Sea (BKS) and these two types of heatwaves. Relative to high BKS SIC, the reduction of SIC would strengthen the cyclonic circulation over the Siberian‐BKS, which could coordinate with the continental high to enhance the cyclonic over the Jianghuai region. A cyclonic‐anticyclonic‐cyclonic pattern is present over the BKS‐North China‐Jianghuai. The cyclonic circulation over the Jianghuai region would push the continental high northerly, resulting in the heatwave centre to the north. It would also cause favourable conditions for precipitation over southern North China, reducing temperatures and raising soil moisture, not conducive to the heatwave. Therefore, the heatwave intensity in southern North China would weaken and the heatwave centre would locate in the north, making the N‐type. Conversely, when the BKS SIC increases, the upper cyclonic over the Siberian‐BKS would not get strengthened, indicating entire North China would be controlled by continental high, and the heatwaves would be southerly relative to the N‐type, namely the S‐type. A series of numerical experiments using NCAR CAM5.3 confirm the above observational results, whereby if the BKS SIC reduces (increases), the North China heatwave is likely to be the N‐type (S‐type).

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Section: Introductionmentioning

confidence: 99%

Two spatial types of North China heatwaves and their possible links to Barents‐Kara Sea ice changes

Zhang

Zeng

Yang

et al. 2022

Intl Journal of Climatology

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“…The temporal variability of the VM index has a significant influence on the surrounding Pacific climate, including the Pacific Intertropical Convergence Zone (ITCZ) precipitation (Ding et al, 2015a), the anticyclone over the western North Pacific, and the winter rainfall over South China (Zou et al, 2020) and the western North Pacific tropical cyclone frequency (Pu et al, 2018). It can also be the linkage between North Pacific Gyre Oscillation and ENSO (Ding et al, 2015b) and contribute to the development and propagation of the Madden-Julian Oscillation (Wen et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

A regime shift in North Pacific annual mean sea surface temperature in 2013/14

Xiao

Ren

2023

Front. Earth Sci.

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This study revealed a new regime shift in the North Pacific annual mean sea surface temperature (SST) in 2013/14, robust in multiple SST data sets. This regime shift shows a horseshoe pattern with warming SST along the North American western coast and toward the Central Pacific. It suggests a phase reversal of the Victoria Mode (VM) and it seems unrelated to the shift in the Pacific Decadal Oscillation (PDO) and Interdecadal Pacific Oscillation (IPO). Associated with this regime shift, the annual surface air temperature significantly enhanced over the high-latitude landmass after 2014, whereas it declined over northeastern Canada and southwestern Greenland. The annual precipitation generally increased (decreased) in the Northern (Southern) Hemisphere landmass monsoon regions. There are no regime shifts in Equatorial Central-East Pacific SST and the intensity and locations of the Aleutian Low around 2013/14. These facts suggest the regime shift of North Pacific SST in 2013/14 may not originate from the decadal variations of the midlatitude atmosphere and tropical ocean. The extensive influence of this regime shift in 2013/14 on the atmospheric, oceanic and ecological systems warrants further investigation.

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