Remote moisture sources for 6-hour summer precipitation over the Southeastern Tibetan Plateau and its effects on precipitation intensity

Zhang, Wei; Chen, Bin; Xu, Xiangde; Zhao, Ruiyu

doi:10.1016/j.atmosres.2019.104803

Cited by 11 publications

(5 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many have focused on the PRR over the TP, as shown in Table 1. The PRR of the TP in summer during the past forty years is approximately 23-28% [28,29], while the contribution rate of the southern TP to precipitation is 30% [30], and the central and western TP is nearly 14-18% [31,32]. Meanwhile, the PRR in the northern TP increased with the increase in precipitation, and the southern TP decreased with the decrease in precipitation [18].…”

Section: Introductionmentioning

confidence: 95%

The Variability of Summer Atmospheric Water Cycle over the Tibetan Plateau and Its Response to the Indo-Pacific Warm Pool

et al. 2021

View full text Add to dashboard Cite

The Tibetan Plateau (TP), atmosphere, and Indo-Pacific warm pool (IPWP) together constitute a regional land–atmosphere–ocean water vapor transport system. This study uses remote sensing data, reanalysis data, and observational data to explore the spatiotemporal variations of the summer atmospheric water cycle over the TP and its possible response to the air-sea interaction in the IPWP during the period 1958–2019. The results reveal that the atmospheric water cycle process over the TP presented an interannual and interdecadal strengthening trend. The climatic precipitation recycle ratio (PRR) over the TP was 18%, and the stronger the evapotranspiration, the higher the PRR. On the interdecadal scale, the change in evapotranspiration has a significant negative correlation with the Pacific Decadal Oscillation (PDO) index. The variability of the water vapor transport (WVT) over the TP was controlled by the dynamic and thermal conditions inside the plateau and the external air-sea interaction processes of the IPWP. When the summer monsoon over the TP was strong, there was an anomalous cyclonic WVT, which increased the water vapor budget (WVB) over the TP. The central and eastern tropical Pacific, the maritime continent and the western Indian Ocean together constituted the triple Sea Surface Temperature (SST) anomaly, which enhanced the convective activity over the IPWP and induced a significant easterly wind anomaly in the middle and lower troposphere, and then generated pronounced easterly WVT anomalies from the tropical Pacific to the maritime continent and the Bay of Bengal. Affected by the air-sea changes in the IPWP, the combined effects of the upstream strengthening and the downstream weakening in the water vapor transport process, directly and indirectly, increased the water vapor transport and budget of TP.

show abstract

Section: Introductionmentioning

confidence: 95%

The Variability of Summer Atmospheric Water Cycle over the Tibetan Plateau and Its Response to the Indo-Pacific Warm Pool

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Gao et al (2014) speculated that the variations in precipitation in the TRHR could be associated with more water vapour supply, from either the internal sources or external moisture origins. Many studies have been explored the moisture source of water vapour or precipitation over the TP and their association with the precipitation with the Lagrangian method (e.g., Chen et al, 2012Chen et al, , 2019Zhang et al, 2017b, Zhang et al, 2019aLiu et al, 2020;Yang et al, 2020;Yang et al, 2022;Li et al, 2022b). However, few studies have focused on the moisture for the TRHR precipitation (Zhang et al, 2019c;Zhao et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this study performed Lagrangian simulation with the three‐dimensional transport and dispersion model FLEXPART and employed a well‐developed Lagrangian moisture source diagnostic (Chen et al, 2019; Chen & Xiang‐De, 2016; Sodemann et al, 2008; Yang et al, 2020) to identify the moisture sources for water vapour over the TRHR during the summer season (May–August, 1980–2017). Building on the diagnosed 6‐hourly moisture sources, the moisture sources were quantified from a climatological perspective, and their relationships with the changes in precipitation on the interannual scale were explored.…”

Section: Introductionmentioning

confidence: 99%

Moisture source anomalies connected to flood‐drought changes over the three‐rivers headwater region of Tibetan Plateau

Zhao

Chen

Zhang

et al. 2023

Intl Journal of Climatology

Self Cite

View full text Add to dashboard Cite

The Flood‐Drought condition over the Three‐River Headwater region (TRHR) of the Tibetan Plateau (TP) exerts vital impacts on regional climate and downstream livelihoods. However, the reasons behind precipitation variability over this region remain elusive. In this study, the multi‐year moisture sources of water vapour reaching the TRHR were identified to reveal their connection to the interannual variability of summer precipitation by utilizing a Lagrangian diagnosis analysis. The results show that the moisture sources could be tracked backward covering vast areas, with the peak values located mostly at the northern Indian continent and adjacent regions of TRH itself. The variability of integrated moisture sources' contribution agrees well with the summer precipitation on the interannual scale; However, the role of different regions varies in line with their geographical location. More specifically, summer precipitation is positively correlated with the moisture source over the adjacent areas of TRH and the remote terrestrial‐oceanic regions, in contrast to a negative correlation to the water vapour departing from the Northeastern Asian and western regions to the TP. The Indian summer monsoon circulation and local recycling process play a dominant role in modulating the summer precipitation on the interannual scale, whereas the role of the westerlies is almost negligible. The abnormal atmosphere circulations triggered by mid‐high latitude wave trains and anomalies in SST in the central and eastern Pacific Ocean and Indian Ocean could serve as possible drivers for the precipitation variability over TRHR.

show abstract

“…Euler based methods include water vapor tracer model (Y. Li et al., 2019; C. Zhang, Tang, et al., 2017; Zhang et al., 2019) and atmospheric models with water vapor tracer technology incorporated (Pan et al., 2019), both of which can provide information of moisture sources and water cycle process, but they also have disadvantages of ignoring the vertical shear of the circulation and model dependency. The Lagrange based methods can provide more information about the vertical motion of the particles, but they still suffer from the limited consideration of the cloud process (Chen et al., 2012, 2019; W. Huang et al., 2018; Sun & Wang, 2014; K. Xu et al., 2020; Y. Xu & Gao, 2019; S. Yang et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The wetting trend over the northern TP is attributed to the increasing water vapor transport from the southeastern region and the TP itself (C. Zhang et al., 2019). Moisture transport related with large‐scale circulation and remote evaporation also contributes to the intensified precipitation events over the TP during the period of 1980–2016 (S. Yang et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Interannual Variability of Precipitation Recycle Ratio Over the Tibetan Plateau

Zhao

Zhou

2021

JGR Atmospheres

View full text Add to dashboard Cite

show abstract

Remote moisture sources for 6-hour summer precipitation over the Southeastern Tibetan Plateau and its effects on precipitation intensity

Cited by 11 publications

References 41 publications

The Variability of Summer Atmospheric Water Cycle over the Tibetan Plateau and Its Response to the Indo-Pacific Warm Pool

The Variability of Summer Atmospheric Water Cycle over the Tibetan Plateau and Its Response to the Indo-Pacific Warm Pool

Moisture source anomalies connected to flood‐drought changes over the three‐rivers headwater region of Tibetan Plateau

Interannual Variability of Precipitation Recycle Ratio Over the Tibetan Plateau

Contact Info

Product

Resources

About