Abstract

The tropical region is a key area for the interaction between the stratosphere and troposphere. The strong convective activity in the troposphere produces a series of gravity wave activities, which result in strong and widespread turbulence over the region. Therefore, studying the turbulent activity in the western Pacific is essential for understanding the characteristics of atmospheric disturbance over this region, which has the world’s most complex circulation system. In this paper, we explore the characteristics of atmospheric turbulence distribution over Guam in this region, and the Thorpe sorting method is used to study one-second resolution radiosonde data from the US. On the basis of the background field and local instability, the turbulence generation mechanism is discussed in detail. Results show that the US high-resolution balloon data are efficacious for tropospheric turbulence retrieval but increasingly affected by instrument noise as altitude increases. It is also found that there is a strong turbulent mixing band caused by both shear instability and static instability near the tropopause, where the turbulence activity is markedly enhanced and characterized by annual oscillation, reaching the maximum from July to September.

Highlights

  • There are two forms of fluid movement in the atmosphere, namely, laminar flow and turbulent flow [1]

  • One is the turbulence caused by wind shear and topographic factors near the ground, and the energy is

  • One is the turbulence caused by wind shear and topographic factors near the ground, and the energy is generated by tangential stress

Read more

Summary

Introduction

There are two forms of fluid movement in the atmosphere, namely, laminar flow and turbulent flow [1]. Laminar flow gives the atmosphere a layered structure, and turbulence causes mixing between the upper and lower layers of air so that mass and energy can be exchanged and transmitted in all directions. The accurate calculation of turbulence parameters is important for improving the accuracy of numerical weather prediction and climate models. Instability and Occurrence of Turbulence the ground, and the wind shear decreases gradually as the height increases. The data are monthly averaged values, and the parameters streams near the tropopause and in the stratosphere allows the wind shear to return to a higher level. 5d shows the static stability of the atmosphere the squared. The stratospheric atmosphere has and a strong stratification, while frequency the middlefrom and upper troposphere has5a shows the zonal wind speeds, and

Results
Discussion
Conclusion
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.