Analyze on the contribution of the moisture sources to the precipitation over mid-low Lancang River nearby region and its variability in the beginning of wet season

Li, Zhangqun; Xiao, Ziniu

doi:10.1007/s00704-020-03228-x

Cited by 8 publications

(3 citation statements)

References 36 publications

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“…The HYSPLIT model version 5.1 is employed to generate backward trajectories of the particles that are associated with the precipitation event (Draxler & Hess, 1997, 1998Stein et al, 2015). This model has been widely used to analyze moisture transport and sources in previous research (Chu et al, 2021;Gustafsson et al, 2010;Li & Xiao, 2020). A more detailed introduction to HYSPLIT is given in Text S1 in Supporting Information S1.…”

Section: Hysplit Model and Backward Trajectoriesmentioning

confidence: 99%

Moisture Sources and Transport for Extreme Precipitation Over Henan in July 2021

Nie

Sun

2022

Geophysical Research Letters

100

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Frequent extreme precipitation events have resulted in severe disasters to agriculture, the economy, and human health in recent decades. Widespread concerns about extreme precipitation have been aroused among the public, the government, and the research community. Researchers have conducted numerous studies on the mechanisms responsible for extreme precipitation events (Agel et al., 2018;Collow et al., 2016). Favorable local dynamic conditions (ascending motion) and instability are critical for the occurrence of extreme precipitation. Abundant moisture supply is another indispensable condition for extreme precipitation.In recent years, many studies have focused on moisture transport and sources for precipitation, including precipitation extremes. Two main approaches are widely used in studies on moisture transport. One is in the Eulerian view by calculating water vapor transport or by identifying and tracking the variation in atmospheric rivers (Sun & Wang, 2013;Tan et al., 2021). A deficiency of the Eulerian view is that it can neither track moisture from the sources to the precipitation area nor track moisture from the target region back to its sources. The other is in the Lagrangian view by tracking the moisture of particles (or air parcels) forward or backward using Lagrangian trajectory models (Sodemann et al., 2008;Sodemann & Zubler, 2010). The Lagrangian model can provide moisture variation processes from evaporation to precipitation along the transport trajectories. Several Lagrangian trajectory models are available, such as the Lagrangian particle dispersion model FLEXPART (

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Section: Hysplit Model and Backward Trajectoriesmentioning

confidence: 99%

Moisture Sources and Transport for Extreme Precipitation Over Henan in July 2021

Nie

Sun

2022

Geophysical Research Letters

100

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“…With the unique topography, landform and climate, the three-river source region features many plateau lakes, glaciers and alpine wetlands, marking it as one of the most important water resource accumulation and regulation areas in China (Shen et al, 2021). However, in the past several decades, due to the impact of climate change and human activities, the snow-capped mountains and glaciers there have retreated, lakes and wetlands have shrunk or even dried up, the area of water and soil loss has expanded, deserti cation and grassland degradation have become increasingly aggravated, and water conservation capacity has declined sharply (Li and Xiao, 2020). According to statistics, taking the total area experiencing disasters as an example, drought disasters strike the three-river source region most, with a proportion of 38%, which exceeds oods, hail, frost, pests and snow disasters, and the increase in drought disasters in the central and northern parts show a frequent trend, with an increasing rate of approximately 8.35×10 4 hm 2 /10a (Wu et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The Lagrangian method-based exible particle dispersion model (FLEXPART) has been applied to water vapour transport research. This model overcomes the de ciencies, including the lack of understanding of the Lagrangian method (such as dynamic trajectory, the assumption of how the surface evaporation is distributed in the entire atmospheric column) and its limitations of only tracking the trajectory of the air masses qualitatively, but the water vapour evaporation and dissipation of air masses cannot be quantitatively determined during movement (Sodemann et al, 2008;Li et al, 2020). Gimeno et al (2012Gimeno et al ( , 2013 discussed the oceanic and continental source regions of terrestrial precipitation on a global scale.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Moisture Sources Of Drought And Wet Events During 1979-2019 In The Three-River Source Region, Qinghai-Tibetan Plateau

Liu

Wang²,

Wang³

2022

Preprint

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The soil moisture observation data from the Qinghai-Tibetan Plateau permafrost and alpine wetland (PAW) monitoring network and from the National Centers for Environmental Prediction Final (NCEP-FNL) from 1989 to 2019 were adopted to drive the Lagrangian backward trajectory model to simulate the water vapour transportation paths and source regions to the three-river source region during dry and wet episodes. The results showed that the water vapour transport paths mainly came from the land and ocean in the west during the extreme drought episodes based on the standardized precipitation index (SPI), including the northern African continent, the eastern European plains, and the mid-latitudes of the Atlantic Ocean. The water vapour source regions were mainly concentrated in the Kashmir region, northeast India and southern Motuo on the Qinghai-Tibet Plateau. When the SPI indicated an extremely wet state, the transport mainly occurred to the east and south, including the Pacific Ocean and the South China Sea, where water vapour entered the mainland from East/South China, passed through the Yangtze River Basin, and finally reached the three-river source region from east or south of the Qinghai-Tibet Plateau, while the water vapour from the Indian Ocean and Arabian Sea passed through the Indian Peninsula and the Bay of Bengal and entered the three-river source region from the western and southern sides of the Qinghai-Tibet Plateau.

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Atmospheric moisture sources of drought and wet events during 1979–2019 in the Three-River Source Region, Qinghai-Tibetan Plateau

Liu

Wang

2022

Theor Appl Climatol

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Analyze on the contribution of the moisture sources to the precipitation over mid-low Lancang River nearby region and its variability in the beginning of wet season

Cited by 8 publications

References 36 publications

Moisture Sources and Transport for Extreme Precipitation Over Henan in July 2021

Moisture Sources and Transport for Extreme Precipitation Over Henan in July 2021

Atmospheric Moisture Sources Of Drought And Wet Events During 1979-2019 In The Three-River Source Region, Qinghai-Tibetan Plateau

Atmospheric moisture sources of drought and wet events during 1979–2019 in the Three-River Source Region, Qinghai-Tibetan Plateau

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