Extreme precipitation events over the Tibetan Plateau and its vicinity associated with Tibetan Plateau vortices

Lin, Zhiqiang; Yao, Xin; Guo, Weidong; Du, Jun; Zhou, Zhenbo

doi:10.1016/j.atmosres.2022.106433

Cited by 10 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A small portion of TPVs that move away from the TP exhibit strong intensity and deep low-pressure systems, often resulting in disastrous weather conditions such as torrential rain and severe convective storms in downstream areas [3,4]. Current research on TPVs is mainly focused on the vorticity, water vapor, heat budget, and characteristics of heavy precipitation associated with TPVs, based on ground, upper-air, and satellite observations and numerical model data [5][6][7][8][9]. In terms of TPV precipitation, Li et al [5] showed that TPVs favored an ascending motion to the east of the plateau, which was conducive to precipitation and the genesis of southwest vortexes.…”

Section: Introductionmentioning

confidence: 99%

“…Li et al [6] found that the intense-rainfall-producing TPV was often characterized by a notable upper-level divergence north of a strong upper-level jet and a strong middle-level warm advection ahead of a shortwave trough over the TP. Lin et al [7] discovered that the extreme precipitation events associated with TPVs tended to, remarkably, occur near the center and the southeastern quadrant of the TPVs. However, conventional observations are often limited, and it is difficult to obtain meteorological information on the large-scale spatial field, due to the complex physical geographic environment of the TP.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Precipitation Characteristics at Different Developmental Stages of the Tibetan Plateau Vortex in July 2021 Based on GPM-DPR Data

Yang,

Ren,

Wang

et al. 2024

Remote Sensing

View full text Add to dashboard Cite

The Tibetan Plateau vortex (TPV), as an α-scale mesoscale weather system, often brings severe weather conditions like torrential rain and severe convective storms. Based on the detections from the Global Precipitation Measurement (GPM) Core Observatory’s Dual-frequency Precipitation Radar (DPR) and the FY-4A satellite’s Advanced Geostationary Radiation Imager (AGRI), combined with ERA5 reanalysis data, the precipitation characteristics of a TPV moving eastward during 8–13 July 2021 at different developmental stages are explored in this study. It was clear that the near-surface precipitation rate of the TPV during the initial stage at the eastern Tibetan Plateau (TP) was below 1 mm·h−1, implying overall weak precipitation dominated by stratiform clouds. After moving out of the TP, the radar reflectivity factor (Ze), precipitation rate, and normalized intercept parameter (dBNw) significantly increased, while the proportion of convective clouds gradually rose. Following the TPV movement, the distribution range and vertical thickness of Ze, mass-weighted mean diameter (Dm), and dBNw tended to increase. The high-frequency region of Ze appeared at 15–20 dBZ, while Dm and dBNw occurred at around 1 mm and 33 mm−1·m−3, respectively. Near the melting layer, Ze was characterized by a significant increase due to the aggregation and melting of ice crystals. The precipitation rate of convective clouds was generally greater than that of stratiform clouds, whilst both of them increased during the movement of the TPV. Particularly, at 01:00 on 12 July, there was a significant increase in the precipitation rate and Dm of convective clouds, while dBNw noticeably decreased. These findings could provide valuable insights into the three-dimensional structure and microphysical characteristics of the precipitation during the movement of the TPV, contributing to a better understanding of cloud precipitation mechanisms.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Precipitation Characteristics at Different Developmental Stages of the Tibetan Plateau Vortex in July 2021 Based on GPM-DPR Data

Yang,

Ren,

Wang

et al. 2024

Remote Sensing

View full text Add to dashboard Cite

show abstract

“…Given that nitrogen (N) and water are two critical factors for plant growth and survival (Yan et al, 2021; Yang et al, 2011), widespread N enrichment (Wang & Tang, 2019; Xia & Wan, 2013) and changing precipitation patterns (Shen et al, 2015, 2022) by anthropogenic activities (IPCC, 2014) could alter plant phenology. The Tibetan Plateau is considered to be a major driver and amplifier of local and global climate change (Chen et al, 2013; Ma, Collins, et al, 2020), and it has experienced widespread N enrichment (Mao et al, 2020) and altered precipitation patterns (Lin et al, 2022; Ma, Lu, et al, 2020) during the second half of the 20th century, which will continue to change in the future (Li et al, 2020). However, less is known about the role of N enrichment and precipitation changes as phenological cues compared to temperature in alpine ecosystems (Piao et al, 2019; Shen et al, 2022), which limits our ability to fully predict the ecological consequences of phenological changes on community structure and ecosystem function.…”

Section: Introductionmentioning

confidence: 99%

Different responses of functional groups to N addition increased synchrony and shortened community reproductive duration in an alpine meadow

et al. 2023

View full text Add to dashboard Cite

Flowering and fruiting phenology of plants is sensitive to environmental cues, and changes in reproductive phenology of individual plant species under climate change have been widely reported. However, how species‐level phenological responses scale up to affect community‐level reproductive phenology patterns (synchrony and reproductive duration) are still unclear. An experiment on the effects of nitrogen (N) addition and precipitation changes on reproductive phenological traits of 52 species was conducted in an alpine meadow on the eastern Tibetan Plateau to determine the influence of the phenological response in different functional groups on community‐level reproductive phenology. N addition significantly delayed the onset date of reproductive phenology of sedges (early‐flowering species) and advanced the end date of reproduction of forbs (late‐flowering species). Meanwhile, N addition reduced the number of individuals involved in reproduction of sedges and forbs, but it increased that of grasses (late‐flowering species). Furthermore, N addition increased reproductive synchrony, delayed the onset and shortened the duration of reproductive phenology at the community level. However, precipitation changes and their interaction with N addition had no significant effect on reproductive phenology of the alpine plant community. Synthesis. These results suggested that differences in the direction and magnitude of response of different species to N enrichment lead to compression of reproductive duration at the community level, increasing the degree of overlap between reproductive events, which could change future species diversity, trophic interactions and productivity accumulation in alpine meadows on the Tibetan Plateau. Overall, knowledge of phenological responses from plant functional groups to the community level contributes to robust prediction and mechanistic understanding of community structure and function in response to future climate change.

show abstract

Mechanism of Diabatic Heating on Precipitation and the Track of a Tibetan Plateau Vortex over the Eastern Slope of the Tibetan Plateau

Dong,

Li,

Xie

et al. 2023

Adv. Atmos. Sci.

View full text Add to dashboard Cite

Extreme precipitation events over the Tibetan Plateau and its vicinity associated with Tibetan Plateau vortices

Cited by 10 publications

References 41 publications

Precipitation Characteristics at Different Developmental Stages of the Tibetan Plateau Vortex in July 2021 Based on GPM-DPR Data

Precipitation Characteristics at Different Developmental Stages of the Tibetan Plateau Vortex in July 2021 Based on GPM-DPR Data

Different responses of functional groups to N addition increased synchrony and shortened community reproductive duration in an alpine meadow

Mechanism of Diabatic Heating on Precipitation and the Track of a Tibetan Plateau Vortex over the Eastern Slope of the Tibetan Plateau

Contact Info

Product

Resources

About