Variation of the East Asian Summer Monsoon Rainfall*

Chen, Tsing Chang; Wang, Shih Yu; Huang, Wei; Yen, Ming Cheng

doi:10.1175/1520-0442(2004)017<0744:voteas>2.0.co;2

Cited by 181 publications

(191 citation statements)

References 29 publications

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“…Interannual rainfall variations in China are also associated with the Asian monsoon-a complex and multifaceted system encompassing the East Asian monsoon (EAM), the Indian monsoon (IM), and the western North Pacific monsoon (WNPM) (e.g., Wang et al 2001;Wang and LinHo 2002). The EAM (e.g., Ding and Chan 2005) is characterized by a cold, dry East Asian winter monsoon (EAWM) affecting Japan and southeastern China (e.g., Zhang et al 1997) and a warm, rainy East Asian summer monsoon (EASM), whose main signature is a meridional rainfall tripole and the quasi-stationary mei-yu subtropical front (e.g., Chen et al 2004). Fluctuations in the EASM are often associated with floods and droughts in the Yangtze River basin (e.g., Huang et al 2007).…”

Section: Introductionmentioning

confidence: 99%

The 2009/10 Drought in China: Possible Causes and Impacts on Vegetation

Barriopedro

Gouveia

Trigo

et al. 2012

Journal of Hydrometeorology

215

125

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Several provinces of China experienced an intense drought episode during 2009 and 2010. The drought was particularly severe in southwestern and northern China, where the accumulated precipitation from May 2009 to April 2010 was about 25% less than normal. The decline of accumulated precipitation over northern China was mostly noticeable during the summer season of 2009 and it was comparable to recent dry episodes. The southwestern China drought resulted from a sequence of dry months from summer 2009 to winter 2010, corresponding to the driest event since at least 1951. The suppression of rainfall in summer over both regions was in agreement with a weakened broad-scale South Asian summer monsoon, possibly influenced by an El Niñ o developing phase, whereas the extremely negative phases of the Arctic Oscillation during the winter of 2010 may have contributed to the persistence of the drought in southwestern China. The assessment of the associated impacts indicates that water reservoirs were severely affected with a ;20% reduction in the nationwide hydroelectrical production during the drought event. Furthermore, an analysis of the normalized difference vegetation index data reveals that large cropland sectors of northern and eastern China experienced up to 8 months of persistently stressed vegetation between May 2009 and July 2010, while southwestern China was relatively less affected. Such different regional vegetative responses are interpreted in terms of the land-cover type, agriculture management, and their dependence on seasonal precipitation and water availability for irrigation.

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Section: Introductionmentioning

confidence: 99%

The 2009/10 Drought in China: Possible Causes and Impacts on Vegetation

Barriopedro

Gouveia

Trigo

et al. 2012

Journal of Hydrometeorology

215

125

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“…But more importantly, as shown in Fig. 1, the two locations have climatological significance because Beijing locates on the north edge of the EASM (Zhu and Wang 2002;Chen et al 2004;Wang and Zhou 2005), while Shanghai is influenced by Meiyu, a unique climatic characteristics over MLRYVR (see below for more discussion of both aspects). Since the Yu-Xue-FenCun records cover an area with inherently a spatial scale larger than a single measurement station, we have chosen extra stations Tianjin and Baoding near Beijing, and Suzhou and Liyang near Shanghai when instrument data were available (see Fig.…”

Section: Precipitation Records In Memos-toemperormentioning

confidence: 99%

Rainy Season at Beijing and Shanghai since 1736

Wang

Hao

et al. 2008

Journal of the Meteorological Society of Japan

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The rainy season is an important climate feature over Eastern China where anomaly in either its timing or length can lead to adverse economic and social consequences. Here, we illustrate that the records of daily precipitation description at Beijing and Shanghai contained in Memos-to-Emperor during the Qing Dynasty provide a unique source to extend the rainy season information to 1736. The information together with the instrument measurements since 1875 in both cities reveals significant inter-annual and decadal variations of the beginning and ending dates, and length of the rainy season. The analysis further reveals that, on the decadal time scale, the length of the rainy season increased in Shanghai since 1961 with more frequent extreme rainfall events, but decreased in Beijing since 1975 with persistent dry conditions. This pattern of changes was not seen in any other periods of the data, in particular during 1736-1820 when both cities showed an increase in the length of the rainy season.

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“…In addition, the EASM also exhibits profound intraseasonal variability (e.g., Chen et al 2004;Ding 2004, 2005, 2007, Su and Xue 2010. On the intraseasonal timescale, tropical diabatic heating anomalies are mostly provided by the Madden-Julian Oscillation (MJO) Julian 1971, 1972) or the closely related Boreal Summer Intraseasonal Oscillation (BSISO), the major modes of intraseasonal variability in the atmosphere over the tropical Indian and western Pacific Oceans.…”

Section: Introductionmentioning

confidence: 99%

Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon

Gollan

Greatbatch

et al. 2018

Clim Dyn

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The spatial pattern of the first mode of interannual variability associated with the East Asian summer monsoon (EASM), obtained from a multivariate Empirical Orthogonal Functions (MV-EOF) analysis, corresponds to the Pacific-Japan (PJ) pattern and is referred to as the PJ-mode. The present study investigates the interannual variation of the PJ-mode from the perspective of the intraseasonal timescale. In particular, the impact of the Madden-Julian oscillation (MJO) on the interannual variation of the PJ-mode is investigated. The results show that the MJO has a significant influence on the interannual variation of the PJ-mode mainly in the lower troposphere (850 hPa) and that the former accounts for approximately 11% of the amplitude of the latter. The major part of the contribution comes from a change in frequency of the different phases of the MJO, especially that of MJO phase 6. This suggests that intraseasonal variation of the convection anomalies over the tropical eastern Indian and western Pacific Oceans plays an important role in the interannual variation of the PJ-mode. In addition, MJO phase 7 also contributes to the interannual variability of the PJ-mode, in this case induced by both the change in frequency and the change in circulation anomalies associated with MJO phase 7.

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Variation of the East Asian Summer Monsoon Rainfall*

Cited by 181 publications

References 29 publications

The 2009/10 Drought in China: Possible Causes and Impacts on Vegetation

The 2009/10 Drought in China: Possible Causes and Impacts on Vegetation

Rainy Season at Beijing and Shanghai since 1736

Impact of the MJO on the interannual variation of the Pacific–Japan mode of the East Asian summer monsoon

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