Turbulence parameters measured by the Beijing Mesosphere–Stratosphere–Troposphere radar in the troposphere/lower stratosphere with three models: Comparison and analyses
- 1Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- 2Xianghe Observatory of Whole Atmosphere, Institute of Atmospheric Physics, Chinese Academy of Sciences, Xianghe 065400, China
- 3University of Chinese Academy of Sciences, Beijing 100049, China
- 1Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
- 2Xianghe Observatory of Whole Atmosphere, Institute of Atmospheric Physics, Chinese Academy of Sciences, Xianghe 065400, China
- 3University of Chinese Academy of Sciences, Beijing 100049, China
Abstract. Based on the quality-controlled observational spectral width data of the Beijing Mesosphere–Stratosphere–Troposphere (MST) radar in the altitudinal range of 3–19.8 km from 2012 to 2014, this paper analyzes the relationship between the proportion of negative turbulent kinetic energy (N-TKE) and the horizontal wind speed/horizontal wind vertical shear domain, and gives the distributional characteristics of atmospheric turbulence parameters obtained by using different calculation models. Three calculation models of the spectral width method were used in this study—namely, the H model (Hocking, 1985), N-2D model (Nastrom, 1997) and D-H model (Dehghan and Hocking, 2011). The results showed that the proportion of N-TKE in the H model increases with the horizontal wind speed and/or the vertical shear of horizontal wind speed, up to 80 %. When the horizontal wind speed is greater than 40 m·s−1, the proportion of N-TKE in the H model is greater than 60 %, and thus the H model is not applicable. When the horizontal wind speed is greater than 20 m s−1, the proportion of N-TKE in the N-2D model and D-H model increases with the horizontal wind speed, independent of the vertical shear of the horizontal wind speed, and the maximum values are 2 % and 4 %, respectively. However, it is still necessary to consider the applicability of the N-2D model and D-H model in some weather processes with strong winds. The distributional characteristics with height of the turbulent kinetic energy dissipation rate 𝜀 and the vertical eddy diffusion coefficient Kz derived by the three models are consistent with previous studies. Still, there are differences in the values of turbulence parameters. Also, the range resolution of the radar has little effect on the differences in the range of turbulence parameters' values. The median values of 𝜀 in the H model, N-2D model and D-H model are 10−3.2–10−2.8 m2 s−3, 10−2.8–10−2.4 m2 s−3 and 10−3.0–10−2.5 m2 s−3, respectively. The median values of Kz in these three models are 100.18–100.67 m2 s−1, 100.57–100.90 m2 s−1 and 100.44–100.74 m2 s−1.
Ze Chen et al.
Status: closed
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RC1: 'Comment on amt-2021-309', Anonymous Referee #1, 25 Jan 2022
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AC1: 'Reply on RC1', Ze Chen, 15 Mar 2022
Dear Editors and Reviewers:
Thank you for your letter and for the Reviewers’ comments concerning our manuscript entitled “Turbulence parameters measured by the Beijing Mesosphere–Stratosphere–Troposphere radar in the troposphere/lower stratosphere with three models: Comparison and analyses” (ID: amt-2021-309). Those comments are valuable and helpful for revising and improving our paper and the important guiding significance to our research. We appreciate for Editors' and Reviewers’ warm work earnestly and hope that the correction will meet with approval.
We have studied each comment carefully and have made corrections as far as possible. We recalculated the turbulence parameters and reorganized the overall manuscript, by taking c1=0.27 for the D-H model and using one-way and two way half power half width of radar beam correctly. These changes do not affect the structure of the article. Revised portions are marked in red in the paper. For details of the revised manuscript, please refer to the document “Author’s track-changes” and uploaded manuscript. The main corrections in the paper and the responses to the Reviewers’ comments are in "authors response.pdf"
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AC1: 'Reply on RC1', Ze Chen, 15 Mar 2022
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RC2: 'Comment on amt-2021-309', Anonymous Referee #2, 08 Feb 2022
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AC2: 'Reply on RC2', Ze Chen, 15 Mar 2022
Dear Editors and Reviewers:
Thank you for your letter and for the Reviewers’ comments concerning our manuscript entitled “Turbulence parameters measured by the Beijing Mesosphere–Stratosphere–Troposphere radar in the troposphere/lower stratosphere with three models: Comparison and analyses” (ID: amt-2021-309). Those comments are valuable and helpful for revising and improving our paper and the important guiding significance to our research. We appreciate for Editors' and Reviewers’ warm work earnestly and hope that the correction will meet with approval.
We have studied each comment carefully and have made corrections as far as possible. We recalculated the turbulence parameters and reorganized the overall manuscript, by taking c1=0.27 for the D-H model and using one-way and two way half power half width of radar beam correctly. These changes do not affect the structure of the article. Revised portions are marked in red in the paper. For details of the revised manuscript, please refer to the document “Author’s track-changes” and uploaded manuscript. The main corrections in the paper and the responses to the Reviewers’ comments are in "authors response.pdf"
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AC2: 'Reply on RC2', Ze Chen, 15 Mar 2022
Status: closed
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RC1: 'Comment on amt-2021-309', Anonymous Referee #1, 25 Jan 2022
-
AC1: 'Reply on RC1', Ze Chen, 15 Mar 2022
Dear Editors and Reviewers:
Thank you for your letter and for the Reviewers’ comments concerning our manuscript entitled “Turbulence parameters measured by the Beijing Mesosphere–Stratosphere–Troposphere radar in the troposphere/lower stratosphere with three models: Comparison and analyses” (ID: amt-2021-309). Those comments are valuable and helpful for revising and improving our paper and the important guiding significance to our research. We appreciate for Editors' and Reviewers’ warm work earnestly and hope that the correction will meet with approval.
We have studied each comment carefully and have made corrections as far as possible. We recalculated the turbulence parameters and reorganized the overall manuscript, by taking c1=0.27 for the D-H model and using one-way and two way half power half width of radar beam correctly. These changes do not affect the structure of the article. Revised portions are marked in red in the paper. For details of the revised manuscript, please refer to the document “Author’s track-changes” and uploaded manuscript. The main corrections in the paper and the responses to the Reviewers’ comments are in "authors response.pdf"
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AC1: 'Reply on RC1', Ze Chen, 15 Mar 2022
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RC2: 'Comment on amt-2021-309', Anonymous Referee #2, 08 Feb 2022
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AC2: 'Reply on RC2', Ze Chen, 15 Mar 2022
Dear Editors and Reviewers:
Thank you for your letter and for the Reviewers’ comments concerning our manuscript entitled “Turbulence parameters measured by the Beijing Mesosphere–Stratosphere–Troposphere radar in the troposphere/lower stratosphere with three models: Comparison and analyses” (ID: amt-2021-309). Those comments are valuable and helpful for revising and improving our paper and the important guiding significance to our research. We appreciate for Editors' and Reviewers’ warm work earnestly and hope that the correction will meet with approval.
We have studied each comment carefully and have made corrections as far as possible. We recalculated the turbulence parameters and reorganized the overall manuscript, by taking c1=0.27 for the D-H model and using one-way and two way half power half width of radar beam correctly. These changes do not affect the structure of the article. Revised portions are marked in red in the paper. For details of the revised manuscript, please refer to the document “Author’s track-changes” and uploaded manuscript. The main corrections in the paper and the responses to the Reviewers’ comments are in "authors response.pdf"
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AC2: 'Reply on RC2', Ze Chen, 15 Mar 2022
Ze Chen et al.
Ze Chen et al.
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