Seasonal Variations of the Near-Surface Atmospheric Boundary Layer Structure in China’s Gurbantünggüt Desert
Joint Authors
Mamtimin, Ali
Huo, Wen
Yang, Fan
Wang, Yu
Sayit, Hajigul
Yang, XingHua
Zhou, Chenglong
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-28
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
As the largest fixed and semifixed desert in China, the Gurbantünggüt Desert has a longperiod of snow in winter and the rapid growth of ephemeral plants in spring, presentingthe obvious seasonal changes in the underlying desert surface type, which could lead to the significantvariety in the near-surface boundary layer over this desert.
To clarify the influence of the underlying surface change on the near-surface atmospheric boundary layer, gradient tower data and Eddy covariance data in 2017 were analyzed.
The results were as follows: the wind profile can be divided into the nocturnal stable boundary layer and the daytime unstable boundary in spring, summer, and autumn, while the wind profile dominating nighttime stability in winter.
During the study period, the four-season temperature profiles can be divided into four types: night radiation type, morning transition type, daylight solar radiation type, and evening transition type, and the temperature difference between spring and summer is more than that of autumn and winter.
The vertical temperature lapse rate can reach 4.5°C/100 m in spring and summer, while the vertical temperature lapse rate is 0.5°C/100 m in winter.
The special humidity value in summer and spring is greater than autumn and winter.
The profile is almost in the inverse humidity state at almost all periods in winter.
The inverse humidity phenomenon occurred on the autumn night.
Besides, the specific humidity is closely related to the temperature and the near-surface wind speed.
The “rapid change” of the underlying surface of the spring desert region affects the surface energy budget, which affects the turbulent energy and the stability of the near-surface layer, thus affecting the changes in temperature, humidity, and wind profile.
American Psychological Association (APA)
Mamtimin, Ali& Wang, Yu& Sayit, Hajigul& Yang, XingHua& Yang, Fan& Huo, Wen…[et al.]. 2020. Seasonal Variations of the Near-Surface Atmospheric Boundary Layer Structure in China’s Gurbantünggüt Desert. Advances in Meteorology،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1126925
Modern Language Association (MLA)
Mamtimin, Ali…[et al.]. Seasonal Variations of the Near-Surface Atmospheric Boundary Layer Structure in China’s Gurbantünggüt Desert. Advances in Meteorology No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1126925
American Medical Association (AMA)
Mamtimin, Ali& Wang, Yu& Sayit, Hajigul& Yang, XingHua& Yang, Fan& Huo, Wen…[et al.]. Seasonal Variations of the Near-Surface Atmospheric Boundary Layer Structure in China’s Gurbantünggüt Desert. Advances in Meteorology. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1126925
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126925