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Evolution and Structure of a Dry Microburst Line Observed by Multiple Remote Sensors in a Plateau Airport.

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Title: Evolution and Structure of a Dry Microburst Line Observed by Multiple Remote Sensors in a Plateau Airport.
Authors: Huang, Xuan1,2 (AUTHOR), Zheng, Jiafeng1 (AUTHOR) zjf1988@cuit.edu.cn, Che, Yuzhang1 (AUTHOR), Wang, Gaili3 (AUTHOR), Ren, Tao1 (AUTHOR), Hua, Zhiqiang2 (AUTHOR), Tian, Weidong2 (AUTHOR), Su, Zhikun4 (AUTHOR), Su, Lianxia4 (AUTHOR)
Source: Remote Sensing. Aug2022, Vol. 14 Issue 15, p3841-3841. 21p.
Subjects: Windstorms, Microbursts, Mesoscale convective complexes, Vertical wind shear, Radar meteorology, Wind shear, Magnetic storms
Geographic Terms: Denver (Colo.)
Abstract: The civilian airplane is a common transportation mode for the local people in the Qinghai-Tibet Plateau (QTP). Due to the profound dynamic and thermal effects, the QTP can trigger strong windstorms during the warm season, during which downbursts can cause severe low-level wind shear and threaten aviation safety. However, the study of downbursts over QTP has not been given much attention. This study analyzes and interprets a typical traveling dry microburst line that happened at the Xining Caojiapu International Airport (ZLXN) on 14 May 2020, intending to show a better understanding of the dry downbursts over QTP and explore the synergetic usage of different remote sensing technologies for downburst detection and warning in plateau airports. Specifically, the characteristics of synoptic conditions, the convective system formation process, and the structure and evolution of downbursts and relevant low-level winds are comprehensively investigated. The results show that, under the control of an upstream shallow trough, features of the local atmosphere state, including a dry-adiabatic stratification, a shallow temperature inversion, increases in solar radiation heating, and strong vertical shears of horizontal winds, can be favorable atmospheric prerequisites for the formation and development of dry storms and downbursts. Low-reflectivity storm cells of the Mesoscale Convective System (MCS) organize to form narrow bow echoes, and downbursts show features of radial wind convergences and rapid descending reflectivity cores with hanging virga as observed by a Doppler weather radar. Moreover, details of gales, gust fronts, convergences, turbulences, wind collisions, and outflow interactions triggered by the downburst line are also detected and interpreted by a scanning Doppler wind lidar from different perspectives. In addition, the findings in this work have been compared with the results observed in Denver, U.S., and some simulation studies. Finally, a few conceptual models of low-level wind evolutions influenced by the dry downburst line are given. [ABSTRACT FROM AUTHOR]
Copyright of Remote Sensing is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Evolution and Structure of a Dry Microburst Line Observed by Multiple Remote Sensors in a Plateau Airport.
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  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Xuan%22">Huang, Xuan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zheng%2C+Jiafeng%22">Zheng, Jiafeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zjf1988@cuit.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Che%2C+Yuzhang%22">Che, Yuzhang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Gaili%22">Wang, Gaili</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ren%2C+Tao%22">Ren, Tao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hua%2C+Zhiqiang%22">Hua, Zhiqiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tian%2C+Weidong%22">Tian, Weidong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Zhikun%22">Su, Zhikun</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Lianxia%22">Su, Lianxia</searchLink><relatesTo>4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Remote+Sensing%22">Remote Sensing</searchLink>. Aug2022, Vol. 14 Issue 15, p3841-3841. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Denver+%28Colo%2E%29%22">Denver (Colo.)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The civilian airplane is a common transportation mode for the local people in the Qinghai-Tibet Plateau (QTP). Due to the profound dynamic and thermal effects, the QTP can trigger strong windstorms during the warm season, during which downbursts can cause severe low-level wind shear and threaten aviation safety. However, the study of downbursts over QTP has not been given much attention. This study analyzes and interprets a typical traveling dry microburst line that happened at the Xining Caojiapu International Airport (ZLXN) on 14 May 2020, intending to show a better understanding of the dry downbursts over QTP and explore the synergetic usage of different remote sensing technologies for downburst detection and warning in plateau airports. Specifically, the characteristics of synoptic conditions, the convective system formation process, and the structure and evolution of downbursts and relevant low-level winds are comprehensively investigated. The results show that, under the control of an upstream shallow trough, features of the local atmosphere state, including a dry-adiabatic stratification, a shallow temperature inversion, increases in solar radiation heating, and strong vertical shears of horizontal winds, can be favorable atmospheric prerequisites for the formation and development of dry storms and downbursts. Low-reflectivity storm cells of the Mesoscale Convective System (MCS) organize to form narrow bow echoes, and downbursts show features of radial wind convergences and rapid descending reflectivity cores with hanging virga as observed by a Doppler weather radar. Moreover, details of gales, gust fronts, convergences, turbulences, wind collisions, and outflow interactions triggered by the downburst line are also detected and interpreted by a scanning Doppler wind lidar from different perspectives. In addition, the findings in this work have been compared with the results observed in Denver, U.S., and some simulation studies. Finally, a few conceptual models of low-level wind evolutions influenced by the dry downburst line are given. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Remote Sensing is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/rs14153841
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 21
        StartPage: 3841
    Subjects:
      – SubjectFull: Windstorms
        Type: general
      – SubjectFull: Microbursts
        Type: general
      – SubjectFull: Mesoscale convective complexes
        Type: general
      – SubjectFull: Vertical wind shear
        Type: general
      – SubjectFull: Radar meteorology
        Type: general
      – SubjectFull: Wind shear
        Type: general
      – SubjectFull: Magnetic storms
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      – SubjectFull: Denver (Colo.)
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      – TitleFull: Evolution and Structure of a Dry Microburst Line Observed by Multiple Remote Sensors in a Plateau Airport.
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              Text: Aug2022
              Type: published
              Y: 2022
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