Linkage between the Arctic Oscillation and winter extreme precipitation over central-southern China

Mao, Rui; Gong, Daoyi; Yang, Jing; Bao, Jing‐Dong

doi:10.3354/cr01041

Cited by 47 publications

(26 citation statements)

References 27 publications

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“…The Northern Hemisphere Annular Mode Index, (also referred as Arctic Oscillation Index) reflects the Westerlies in middle latitude of Northern Hemisphere. Previous researches have detected the relationship between Arctic Oscillation (North Atlantic Oscillation) and precipitation variation (Scaife et al, 2008;Yadav et al, 2009;Hu and Feng, 2010;Mao et al, 2011). Statistically significant correlations between precipitation indices and Northern Hemisphere Annular Mode Index occur in wintertime, which indicates the precipitation extremes in this study area are related to the Arctic Oscillation.…”

Section: Discussionmentioning

confidence: 61%

Changes in precipitation extremes in alpine areas of the Chinese Tianshan Mountains, central Asia, 1961–2011

Wang

Zhang

Sun

et al. 2013

Quaternary International

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Section: Discussionmentioning

confidence: 61%

Changes in precipitation extremes in alpine areas of the Chinese Tianshan Mountains, central Asia, 1961–2011

Wang

Zhang

Sun

et al. 2013

Quaternary International

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“…In this study, we have only analysed the links between limited circulation features of SST/Ts and U850 with the long‐term changes in precipitation. Other circulation factors such as the Arctic Oscillation (AO), PDO, and AMO also contribute to the long‐term precipitation trend over China (Li et al , ; Ma, ; Zhou et al , ; Mao et al , ; Qian and Zhou, ; Qian et al , ). However, the changes in circulation factors are not independent, which may often be mutually adjusted and connected corresponding to the global warming phenomenon.…”

Section: Discussionmentioning

confidence: 99%

Regional characteristics of long‐term changes in total and extreme precipitations over China and their links to atmospheric–oceanic features

Wang

Yang

2016

Intl Journal of Climatology

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ABSTRACT:The regional features of long-term changes in total and extreme precipitations over eight China domains and their seasonality and relationships with large-scale and local atmospheric and oceanic factors are investigated. A newly compiled data set of 917 China stations from the China National Meteorological Information Center with strict quality control is analysed. Wintertime extreme precipitation has increased persistently in all China domains, together with an obvious wetting tendency except in North China. In spring, an increase in extreme precipitation is also seen except in South China, but total precipitation increases only in half of China. A 'northern drying and southern wetting' (NDSW) pattern is found over eastern China for both extreme and total precipitations in summer when precipitation increases significantly in Northwest China (NWCH). Different features are found in autumn when negative trends are found in most of the China domains for total precipitation (except in NWCH and the Tibetan Plateau) and half of the domains for extreme precipitation. Overall, the frequency of extreme precipitation plays a dominant role in determining the extreme precipitation trend compared to the intensity of precipitation. The long-term changes in total precipitation and extreme ratio (extreme precipitation to total precipitation) are both strongly linked to the sea surface temperatures (SSTs) from the Indian Ocean to the Maritime Continent, the Kuroshio, the central-eastern Pacific, and part of the Atlantic Ocean. In summer, the NDSW pattern is closely associated with the weakening of East Asian monsoon circulation and the increase in land surface temperature of 40 ∘ -60 ∘ N. Local warming trends also contribute to the trends of extreme ratio in several domains in particular seasons.

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“…Mao et al . [] also showed that a positive AO usually induces significant winter extreme precipitation over central southern China through a stronger Middle East jet stream and deepened southern branch trough over the Bay of Bengal.…”

Section: Introductionmentioning

confidence: 99%

How does the South Asian High influence extreme precipitation over eastern China?

2017

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Based on the high‐resolution observed daily precipitation data, three characteristic regions over eastern China are first defined through the rotated empirical orthogonal function. Then, the relationship between summer (June‐July‐August) extreme precipitation across the three characteristic regions of eastern China and the South Asian High (SAH) is examined to determine how the northwest‐southeast movement and area (magnitude) of SAH influence the summer extreme precipitation across eastern China. When the South Asian High is located anomalously northwest, there is more extreme precipitation over the northern part of eastern China but less extreme precipitation over the Jiang‐Huai River Basin. When the SAH intensifies, there is more extreme precipitation over the Jiang‐Huai River Basin. The mechanisms are that under the conditions of anomalously northwestward displacements, the positive geopotential anomalies over central Asia induce a deep barotropic Korean High through a Rossby wave train, resulting in more water vapor transportation to eastern China with more convergence over the northern part of eastern China located at the northwestern edge of the Korean High but with a divergence over the Jiang‐Huai River Basin. When the SAH intensifies, accompanied by an enhanced and westward extended western Pacific subtropical High, the convergence over the Jiang‐Huai River Basin increases with enhanced water vapor transportation due to the confluence of warm and cold advections. These mechanisms are achieved through shifts toward the high tail (low tail) of the daily precipitation cumulative distributions of these two regions and finally increases (decreases) in the occurrence of extreme precipitation.

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Linkage between the Arctic Oscillation and winter extreme precipitation over central-southern China

Cited by 47 publications

References 27 publications

Changes in precipitation extremes in alpine areas of the Chinese Tianshan Mountains, central Asia, 1961–2011

Changes in precipitation extremes in alpine areas of the Chinese Tianshan Mountains, central Asia, 1961–2011

Regional characteristics of long‐term changes in total and extreme precipitations over China and their links to atmospheric–oceanic features

How does the South Asian High influence extreme precipitation over eastern China?

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