Influence of Tibetan Plateau autumn snow cover on interannual variations in spring precipitation over southern China

Jia, Xiangping; Zhang, Chao; Wu, Renguang; Qian, Qifeng

doi:10.1007/s00382-020-05497-8

Cited by 35 publications

(16 citation statements)

References 51 publications

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“…Some studies revealed that there is a two-way interaction between the atmosphere and the underneath snow cover. For instance, Wu (2011, 2012) and Jia et al (2021) proposed that changes in the atmosphere lead the snow cover variation, while positive feedback lies between them. More than normal snow cover can induce anomalous low pressure in the upper troposphere (i.e., cyclonic pattern) due to the cooling effect resulting from an increased albedo effect that can reduce incoming solar radiation, reduce surface radiation absorption, and suppress sensible heat from the ground.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

The Seasonal Evolution of the Tibetan Plateau Snow Cover Related Moisture During Spring‐to‐Summer

Zhang

Jia

2022

JGR Atmospheres

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The Tibetan Plateau (TP), known as "the Asian Water Tower" is the headwater for more than 10 renowned rivers in East Asia, South Asia and Southeast Asia, involving the Yangtze River, the Mekong River, and the Indus River, benefiting a billion population over these regions (Immerzeel et al., 2010(Immerzeel et al., , 2020Kraaijenbrink et al., 2021). In warm seasons, the meltwaters of snow and glaciers over the TP play an important role as a reservoirs for "the Asian Water Tower." As pointed out by Xu et al. (2008) and Immerzeel et al. (2010), meltwater released moisture can be transported into the mid-to upper-troposphere and influence the global water environment. In the past 50 years, the TP has experienced an almost double warming rate to that of global the mean, and the melting rate of snow and glaciers over the TP have increased significantly (Kang et al., 2010;You et al., 2020You et al., , 2021. The variation in TP snow and glaciers can impact the hydrological sources for the TP and surrounding areas by changing the river discharges and may result in species migration (

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Section: Conclusion and Discussionmentioning

confidence: 99%

The Seasonal Evolution of the Tibetan Plateau Snow Cover Related Moisture During Spring‐to‐Summer

Zhang

Jia

2022

JGR Atmospheres

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“…Since Blanford. (1884) found the relationship between northwest Indian summer precipitation and the winter-spring snow on the Himalayas, a large number of studies have analyzed the influence of the Tibetan Plateau snow on regional weather and climate (Chen and Wu, 2000;Lin and Wu, 2011;Xiao and Duan, 2016;Wang et al, 2017;Li et al, 2018;Qian et al, 2019;Wang et al, 2020;You et al, 2020;Jia et al, 2021). These studies found the impact of cold season snow over the Tibetan Plateau on East Asian, Indian, Eurasian, and North Americna climate variability.…”

Section: Introductionmentioning

confidence: 99%

Decreasing Influence of Summer Snow Cover Over the Western Tibetan Plateau on East Asian Precipitation Under Global Warming

Wang

Chen

et al. 2021

Front. Earth Sci.

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In recent years, some studies emphasized the influence of western Tibetan Plateau summer snow on the East Asian summer precipitation. With the temperature rise in the past decades, the snow cover over the western Tibetan Plateau in summer has significantly decreased. This raises the question whether the impact of the Tibetan Plateau snow has changed. The present study identifies a prominent change in the influence of the western Tibetan Plateau snow cover on the East Asian summer precipitation. Before the early 2000’s, positive precipitation anomalies extend from the southeastern Tibetan Plateau through the Yangtze River to Japan and Korea and negative anomalies cover southeast China corresponding to more Tibetan Plateau snow cover. After the early 2000’s, with the reduction of snow cover variability, below-normal and above-normal summer precipitation occurs over northern China-Mongolia and northeast Asia, respectively, corresponding to more Tibetan Plateau snow cover. The change in the influence of the Tibetan Plateau snow on the East Asian summer precipitation is associated with an obvious change in the atmospheric circulation anomaly pattern. Before the early 2000’s, the wind anomalies display a south-north contrast pattern with anomalous convergence along the Yangtze River. After the early 2000’s, an anomalous cyclone occupies Northeast China with anomalous southerlies and northerlies over northeast Asia and northern China, respectively. The Tibetan Plateau snow cover variation after the early 2000’s is associated with the northeast Indian summer precipitation. The model experiments confirm that the weakened influence of summer western Tibetan Plateau snow cover on the East Asian atmospheric circulation and precipitation with the reduced snow cover anomalies.

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“…2018Wang et at. , 2019Jia et al 2021;Han et al 2021). For instance, Xiao and Duan (2016) revealed that snow cover along the Himalayas (i.e., western TP) can prolong the signature of snow cover anomaly from winter to summer, whereas the eastern TPSCA in winter can only persist till the early spring.…”

Section: Introductionmentioning

confidence: 99%

“…However, the amplitude of spring precipitation over eastern China (SPEC) almost equals to that of the summer rainfall (Cheng et al 2018;You and Jia 2018;Xu et al 2019), whereas the SPEC features striking variability at multiple time scales (Yang and Lau 2004;Feng and Li 2011;Zhu et al 2014). In essence, the preceding TPSCA may also be one of the potential factors of SPEC (e.g., Jia et al 2021). Jia et al (2021) revealed that the preceding TPSC can impact the SPEC by modulating the subsequent upper-level East Asian subtropical westerly jet and lowertroposphere southerly.…”

Section: Introductionmentioning

confidence: 99%

“…In essence, the preceding TPSCA may also be one of the potential factors of SPEC (e.g., Jia et al 2021). Jia et al (2021) revealed that the preceding TPSC can impact the SPEC by modulating the subsequent upper-level East Asian subtropical westerly jet and lowertroposphere southerly. However, due to the atmospheric chaotic nature, the atmospheric signals cannot be prolonged for more than half a month (Qian et al 2019).…”

Section: Introductionmentioning

confidence: 99%

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Interdecadal Change in the Effect of Tibetan Plateau Snow Cover on Spring Precipitation over Eastern China around the Early 1990s

Zhang

Guo

Wen

2021

Preprint

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Previous works extensively investigated the influences of the winter-spring Tibetan Plateau snow cover (TP, TPSC) on climate variability over the East Asia. The present work documents an interdecadal-changed impacts of different spring TPSC anomaly (TPSCA) patterns on spring precipitation over eastern China (SPEC) around the early 1990s. It is found that the correlation of eastern and western TPSCA shifts from negative to positive around 1990. The empirical orthogonal function (EOF) analysis applying onto the spring TPSCA during 1970–1989 (P1) and during 1991–2017 (P2) adds additional support for such interdecadal change in the relationship between the eastern and western TPSCA. Specifically, the leading EOF (EOF1) mode in P1 shows an out-of-phase pattern with opposite signals lying over the eastern and western TP, while the counterpart in P2 is characterized by an in-phase pattern over the entire TP. Corresponding to more (less) snow cover in the eastern (western) TP in P1, a significant TP cold cyclone (TPCC) and a downstream anticyclone over the western North Pacific are observed. Anomalous southerly flow prevailing east to TPCC could bring the warm-wet air from tropics to the coast of East Asian, which largely enhances the spring precipitation south to Yangtze River Valley (YRV). By contrast, regarding more snow cover both in the eastern and western TP in P2, a relatively northward-displaced and wider TPCC sweeps over the entire TP compared with the TPSC-induced TPCC in P1. Moreover, there are significant sinking anomalies observed in the downstream YRV-HRV region, which leads to suppressed spring precipitation over there via the dry-cold advection process. Hence, these discrepancies of local and downstream atmospheric circulation induced by the out-of-phase and in-phase TPSCA patterns in two epochs play an important role in resulting in the interdecadal shift of the SPEC anomaly pattern around 1990.

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Influence of Tibetan Plateau autumn snow cover on interannual variations in spring precipitation over southern China

Cited by 35 publications

References 51 publications

The Seasonal Evolution of the Tibetan Plateau Snow Cover Related Moisture During Spring‐to‐Summer

The Seasonal Evolution of the Tibetan Plateau Snow Cover Related Moisture During Spring‐to‐Summer

Decreasing Influence of Summer Snow Cover Over the Western Tibetan Plateau on East Asian Precipitation Under Global Warming

Interdecadal Change in the Effect of Tibetan Plateau Snow Cover on Spring Precipitation over Eastern China around the Early 1990s

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