Predecessor rain events over China’s low-latitude highlands associated with Bay of Bengal tropical cyclones

Yuan, Junpeng; Zhao, Di; Yang, Ruidong; Yang, Haifeng

doi:10.1007/s00382-017-3643-8

Cited by 24 publications

(20 citation statements)

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“…Moore et al (2013) classified PREs based upon the synoptic-scale upper-level flow configuration and showed that PREs typically occur near a low-level baroclinic zone in the presence of a stream of water vapor from a TC. Yuan et al (2018) analyzed PRE events over China's low-latitude highlands (CLLH) associated with Bay of Bengal TCs and reported that deep moisture is advected from the TC vicinity to the remote CLLH region, which is situated beneath the equatorward entrance of the upper-level East Asia subtropical jet.…”

Section: Introductionmentioning

confidence: 99%

On the Northward Ageostrophic Winds Associated with a Tropical Cyclone

Saitō

2019

SOLA

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Section: Introductionmentioning

confidence: 99%

On the Northward Ageostrophic Winds Associated with a Tropical Cyclone

Saitō

2019

SOLA

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“…Moreover, owing to the narrow sea basin size and complex surrounding topography of the North Indian Ocean, the rainfall events caused by TCs in the North Indian Ocean are more complicated [6,7]. For example, TCs originating from the Bay of Bengal (BOB) not only can make landfall and affect surrounding countries directly [6], they can also have indirect effects and cause heavy rainfall and secondary landslides and debris flows in regions remote from the BOB, such as southwestern China [8][9][10][11]. Owing to the blocking effect of mountains, such as the Himalaya, the Naga Mountains and the Hengduan Owing to the blocking effect of mountains, such as the Himalaya, the Naga Mountains and the Hengduan Mountains in China (Figure 1), the BOB TCs often weaken rapidly and cannot affect China directly.…”

Section: Introductionmentioning

confidence: 99%

“…This performs like a PRE that was suggested by Cote [3]. Based on the work of Cote [3], Yuan et al further redefined PRE over southwestern China associated with BOB TC by satisfying the following criteria: (1) A coherent heavy rainfall region in southwestern China is clearly separate from the area of rainfall that is directly tied to BOB TC vortex, (2) deep tropical moisture originally associated with the BOB TC must be advected away from TC vicinity into the coherent rainfall region in southwestern China [11]. By identifying 21 PREs associated with BOB TCs during 1981-2012, Yuan et al revealed that the PREs mainly occurred on the southwest side of the mountains in southwestern China.…”

Section: Introductionmentioning

confidence: 99%

“…The topographic forced upward motion is very important for the PREs over southwestern China. Because the southwesterly wind conveys plentiful warm and moist air from the BOB TC vicinity and hits the mountains on the southwest side, it triggers strong ascent and is favorable for heavy rainfall occurrence therein [11]. Moreover, owing to high mountains southeast of Qinghai-Tibet Plateau, the mid-latitude systems and cold flows are hard to affect the southwest side of the mountains in southwestern China.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, owing to high mountains southeast of Qinghai-Tibet Plateau, the mid-latitude systems and cold flows are hard to affect the southwest side of the mountains in southwestern China. The PREs that occur over southwestern China are mainly produced by the interactions of the TC and subtropical weather systems, such as the western Pacific subtropical high, the India-Burma trough and subtropical jet [1,[8][9][10][11][12]. Hence, this is quite different from PREs caused by TCs in North Pacific and Atlantic Oceans.…”

Section: Introductionmentioning

confidence: 99%

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Heavy Rainfall Events in Southern China Associated with Tropical Cyclones in the Bay of Bengal: A Case Study

et al. 2019

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We use a case study to show that a continuous heavy rainfall process in southern China was closely related to tropical cyclone activity in the Bay of Bengal. The continuous heavy rainfall that occurred in southern China on 11–13 May 2002 can be considered as two different processes. The first process, referred to as a predecessor rain event, occurred over southwestern China before landfall of the tropical cyclone. The second process occurred after dissipation of the tropical cyclone when its remnant caused heavy rainfall that expanded from southwestern China to the middle to lower reaches of the Yangtze–Huaihe river basin. Both of the heavy rainfall processes were closely related to the transport of warm, moist air associated with a tropical cyclone originating over the Bay of Bengal, but the mechanisms in the two processes were quite different. Low-level orographic forcing was the main contributor to the predecessor rain event, whereas baroclinic frontogenesis induced by thermal advection was the main contributor to the tropical cyclone remnant event. Both heavy rainfall events occurred beneath the equatorial entrance of the upper level East Asian subtropical jet.

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The detailed moisture transport structure in extreme precipitation on the Tibetan Plateau caused by storm over the Bay of Bengal

An,

Li,

Fan

et al. 2024

Atmospheric Science Letters

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The storms over the Bay of Bengal (BoB) often combine with the weather systems such as the South Branch Trough (SBT) and the West Pacific Subtropical High (WPSH) to transport plenty of moisture inducing extreme precipitation on the Tibetan Plateau (TP). Determining the fine moisture structures of storms helps understand mechanism of this kind of extreme precipitation. An extreme precipitation occurred on the TP influenced by storm Rashmi (2008). A Lagrangian approach is scrutinized the forward and backward moisture transport trajectories of Rashmi and the TP, respectively. The moisture source of this extreme precipitation is relatively clear, which comes from the collaborative influence of Rashmi with the southwest jet generated by the SBT and the WPSH. Utilizing a three‐dimensional K‐means clustering method devised in this study, the Rashmi's forward trajectories are classified into three categories, the particles ascending with the northward movement of Rashmi (45%), consistently below 1 km (37.5%), and rapidly ascending into the southwest jet stream (17.5%). Notably, 97.5%, 1.2%, and 91% of these categories impact the TP, respectively. The moisture transport structure of storm is verified by backward tracking of moisture over the TP. In addition, the three‐dimensional moisture trajectories classification method is recommended when trajectories suffer rapid altitude changes.

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Predecessor rain events over China’s low-latitude highlands associated with Bay of Bengal tropical cyclones

Cited by 24 publications

References 24 publications

On the Northward Ageostrophic Winds Associated with a Tropical Cyclone

On the Northward Ageostrophic Winds Associated with a Tropical Cyclone

Heavy Rainfall Events in Southern China Associated with Tropical Cyclones in the Bay of Bengal: A Case Study

The detailed moisture transport structure in extreme precipitation on the Tibetan Plateau caused by storm over the Bay of Bengal

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