Enso-Snow-Monsoon Associations and Seasonal-Interannual Predictions

Yang, Song

doi:10.1002/(sici)1097-0088(199602)16:2<125::aid-joc999>3.0.co;2-v

Cited by 104 publications

(63 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7b). This coincides with the conclusion that the Indian summer monsoon has a strong interaction with the tropical ocean and atmospheric system in following seasons (Yasunari, 1991 andYang, 1996). Nearmarginal significant negative correlations exist between the Indian summer monsoon rainfall and the SOT in spring (-MAN) and summer (-JJA) of one year before the reference year of the Indian summer monsoon.…”

Section: Wt Analyses Of the Rainfall Variations Over North China And supporting

confidence: 87%

“…The strong interaction between the Asian summer monsoon and the ENSO cycle have been demonstrated by Yasunari (1991), Tian and Yasunari (1992), Yang (1996) and the present analysis. However, it is not clear in which time scale they are closely related to each other.…”

Section: Wt Analyses Of the Rainfall Variations Over North China And mentioning

confidence: 98%

“…(c)1996, Meteorological Society of Japan the Indian summer monsoon rainfall and rainfall in North China. Relationships between the ENSO cycle, Eurasian winter snow cover, and Indian summer monsoon rainfall were studied by Yang (1996). Yang (1996) suggested that the ENSO plays a more important role than the Eurasian winter snow cover in influencing the variability of the Indian monsoon.…”

Section: Introductionmentioning

confidence: 99%

“…Relationships between the ENSO cycle, Eurasian winter snow cover, and Indian summer monsoon rainfall were studied by Yang (1996). Yang (1996) suggested that the ENSO plays a more important role than the Eurasian winter snow cover in influencing the variability of the Indian monsoon. Precipitation fluctuations over semi-arid region in Northern China and their association with the ENSO were examined by Wang and Li (1990).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Wavelet Analysis of Summer Rainfall over North China and India and SOI Using 1891-1992 Data

Nitta

1996

Journal of the Meteorological Society of Japan

View full text Add to dashboard Cite

Localization of interannual and decadal variations of summer rainfall in North China and India and seasonal mean Southern Oscillation Index (SOI) from , and the favored time scales of the significant correlations among them are investigated with the wavelet transform (WT) analysis method. Strong localization and non-stationary evolution in the interannual and decadal variations of the rainfall in North China and India are demonstrated. The dominating time scales in the rainfall variations in North China and India are mainly located in two time scale bands: shorter than 10 years, and 14-28 years. The correlations between the rainfall variations in North China and India are time-scale dependent. The significant positive correlations are concentrated in two time-scale bands: shorter than 7 years and longer than 14 years. The correlations are insignificant on time scales of 7-14 years.El Nino and Southern Oscillation (ENSO) cycle is a nonstationary process. The dominant time scales for the variation of SOI are shorter than 5-7 years, and the decadal variations are obvious in 1891-1915 and 1970-1992. There is strong interaction between the Indian summer monsoon and the ENSO cycle. The significant positive correlations are mainly focused on the time scales shorter than 24-30 years, and the significant negative correlations on time scales longer than 40 years in summer and winter SOI cases. The correlation between the rainfall variations in North China and the ENSO cycle in various seasons are less significant, more scattered and complex, but there are some similarities in the correlation pattern compared with that of India, especially in the shorter time scales.The calculation shows that the summer rainfall variations in North China and India at different time scales are related with different general circulation anomalous patterns in middle and high latitudes of Eurasia and the western Pacific. The correlation patterns over Eurasia and the western Pacific between the summer rainfall variations in North China or India and the geopotential height at 500hPa are similar to the correlation patterns between the geopotential height and the WT results of the rainfall on time scales of about 5 years, but different from those on time scales of about 11 years.Therefore, the similar behavior between the rainfall variations in North China and India may be caused by the similar associations between the rainfall variations and the ENSO cycle and the general circulation anomalies in middle and high latitudes over Eurasia and the western Pacific, and the difference may be related to the different character of these associations.

show abstract

Section: Wt Analyses Of the Rainfall Variations Over North China And supporting

confidence: 87%

Section: Wt Analyses Of the Rainfall Variations Over North China And mentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Wavelet Analysis of Summer Rainfall over North China and India and SOI Using 1891-1992 Data

Nitta

1996

Journal of the Meteorological Society of Japan

View full text Add to dashboard Cite

show abstract

“…The linkage between Eurasian snow cover and summer rainfall over China was shown to be more complicated (Yang and Xu, 1994). Additionally, the snow-monsoon relation is influenced by El Niño-southern oscillation (ENSO) events (Sankar-Rao et al, 1996;Yang, 1996).…”

Section: Introductionmentioning

confidence: 99%

Influence of Eurasian spring snow cover on Asian summer rainfall

Liu

Yanai

2002

Intl Journal of Climatology

131

View full text Add to dashboard Cite

The Eurasian snow cover anomaly in spring has been considered as one of the important factors affecting Asian summer monsoon variability. Using the long time series of Eurasian spring (March-April) snow cover (ESSC) reconstructed by Brown (2000. Journal of Climate 13: 2339) and snow cover (1973-98) and depth (1979-87) data from satellite observation, the influences of ESSC on the all-India monsoon (June-September) rainfall (AIMR) and the summer rainfall over all parts of Asia are examined. It is found that the statistical relation between AIMR and ESSC changes over a multi-decadal time scale. The negative correlation between them has increased markedly since the mid 1970s. The region where the summer rainfall has the strongest and most stable negative correlation with the preceding ESSC is located in northern Mongolia, south of Lake Baikal. The correlation between the summer rainfall and ESSC increases after the data are treated with a low-pass filter, showing that the impact of snow cover may be seen more clearly with the removal of the effect of El Niño-southern oscillation. Comparative analyses for contrasting years with excessive and deficient snow cover show that the anomalies of ESSC occur mainly in northwestern Eurasia. In the years of excessive ESSC anomalies, cooling and a cyclonic circulation anomaly in the lower troposphere appear over the northern part of Eurasia, leading to a Rossby-wave-train-like circulation response, then a weakened East Asia summer monsoon and deficient rainfall with an anticyclonic circulation anomaly south of Lake Baikal. Anomalies with opposite signs occur in the years of deficient snow cover.

show abstract