Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305)
<p>The accurate wind field observation of the tropical cyclone (TC) boundary layer is of great significance in improving the TC track and intensity forecasting. To investigate the vertical structure of TC boundary layer during the landfall process of Super Typhoon Doksuri, three kinds of instr...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2025-07-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/18/3305/2025/amt-18-3305-2025.pdf |
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| author | X. Wang X. Wang J. Xu J. Xu S. Wu S. Wu S. Wu Q. Wang G. Dai G. Dai P. Zhu Z. Su S. Chen X. Shi M. Fan |
| author_facet | X. Wang X. Wang J. Xu J. Xu S. Wu S. Wu S. Wu Q. Wang G. Dai G. Dai P. Zhu Z. Su S. Chen X. Shi M. Fan |
| author_sort | X. Wang |
| collection | DOAJ |
| description | <p>The accurate wind field observation of the tropical cyclone (TC) boundary layer is of great significance in improving the TC track and intensity forecasting. To investigate the vertical structure of TC boundary layer during the landfall process of Super Typhoon Doksuri, three kinds of instruments, including the coherent Doppler lidar (CDL), radar wind profiler (RWP) and automatic weather station (AWS), are deployed at two sites in Xiamen, Fujian province. The data fusion method is developed to obtain the complete wind speed profiles covering the whole atmospheric boundary layer (ABL) based on the above instruments. The wind speeds in the near-field blind zones of CDL observation are interpolated by combining the AWS measurements at 10 m. The CDL provides high-temporal- and high-spatial-resolution wind speed profiles from tens of meters to its highest detection height. The wind speeds above the highest detection height of the CDL are supplemented with the RWP measurements. The hourly mean wind speed profiles are compared with traditional models. Generally, the wind speed profiles fit well with the power law in the lower part of the ABL before wind speed changes rapidly. However, it would cause a large error (up to 73 %) to describe the exact wind speed profiles with the power law during and after the typhoon's passage, especially when the wind speed is almost constant with height or when wind shear exists. Then, fine structures and evolutionary processes of the wind field in the ABL during the typhoon landfall are investigated. In addition, the wind field distribution and wind speed variation with distance from the typhoon center are statistically analyzed. The joint wind field measurements of CDL, RWP and AWS have the broad application prospects on the dynamics study of the TC boundary layer and the improvement of the boundary layer parameterization scheme in numerical forecast models.</p> |
| format | Article |
| id | doaj-art-31ed84d14b3e4376ba4bd4e48d82df1a |
| institution | Kabale University |
| issn | 1867-1381 1867-8548 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj-art-31ed84d14b3e4376ba4bd4e48d82df1a2025-08-20T03:28:10ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482025-07-01183305332010.5194/amt-18-3305-2025Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305)X. Wang0X. Wang1J. Xu2J. Xu3S. Wu4S. Wu5S. Wu6Q. Wang7G. Dai8G. Dai9P. Zhu10Z. Su11S. Chen12X. Shi13M. Fan14Qingdao Institute of Marine Meteorology, Chinese Academy of Meteorological Sciences, Qingdao, 266061, ChinaQingdao Meteorological Observatory, Qingdao Meteorological Bureau, Qingdao, 266003, ChinaQingdao Institute of Marine Meteorology, Chinese Academy of Meteorological Sciences, Qingdao, 266061, ChinaQingdao Meteorological Observatory, Qingdao Meteorological Bureau, Qingdao, 266003, ChinaCollege of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao, 266100, ChinaLaoshan Laboratory, Qingdao, 266237, ChinaInstitute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, ChinaQingdao Leice Transient Technology Co., Ltd., Qingdao, 266100, ChinaCollege of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao, 266100, ChinaLaoshan Laboratory, Qingdao, 266237, ChinaCollege of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China, Qingdao, 266100, ChinaXiamen Key Laboratory of Straits Meteorology, Xiamen Meteorological Bureau, Xiamen, 361012, ChinaXiamen Meteorological Bureau, Xiamen, 361012, ChinaQingdao Meteorological Observatory, Qingdao Meteorological Bureau, Qingdao, 266003, ChinaQingdao Leice Transient Technology Co., Ltd., Qingdao, 266100, China<p>The accurate wind field observation of the tropical cyclone (TC) boundary layer is of great significance in improving the TC track and intensity forecasting. To investigate the vertical structure of TC boundary layer during the landfall process of Super Typhoon Doksuri, three kinds of instruments, including the coherent Doppler lidar (CDL), radar wind profiler (RWP) and automatic weather station (AWS), are deployed at two sites in Xiamen, Fujian province. The data fusion method is developed to obtain the complete wind speed profiles covering the whole atmospheric boundary layer (ABL) based on the above instruments. The wind speeds in the near-field blind zones of CDL observation are interpolated by combining the AWS measurements at 10 m. The CDL provides high-temporal- and high-spatial-resolution wind speed profiles from tens of meters to its highest detection height. The wind speeds above the highest detection height of the CDL are supplemented with the RWP measurements. The hourly mean wind speed profiles are compared with traditional models. Generally, the wind speed profiles fit well with the power law in the lower part of the ABL before wind speed changes rapidly. However, it would cause a large error (up to 73 %) to describe the exact wind speed profiles with the power law during and after the typhoon's passage, especially when the wind speed is almost constant with height or when wind shear exists. Then, fine structures and evolutionary processes of the wind field in the ABL during the typhoon landfall are investigated. In addition, the wind field distribution and wind speed variation with distance from the typhoon center are statistically analyzed. The joint wind field measurements of CDL, RWP and AWS have the broad application prospects on the dynamics study of the TC boundary layer and the improvement of the boundary layer parameterization scheme in numerical forecast models.</p>https://amt.copernicus.org/articles/18/3305/2025/amt-18-3305-2025.pdf |
| spellingShingle | X. Wang X. Wang J. Xu J. Xu S. Wu S. Wu S. Wu Q. Wang G. Dai G. Dai P. Zhu Z. Su S. Chen X. Shi M. Fan Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) Atmospheric Measurement Techniques |
| title | Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) |
| title_full | Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) |
| title_fullStr | Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) |
| title_full_unstemmed | Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) |
| title_short | Evolution of wind field in the atmospheric boundary layer using multiple-source observations during the passage of Super Typhoon Doksuri (2305) |
| title_sort | evolution of wind field in the atmospheric boundary layer using multiple source observations during the passage of super typhoon doksuri 2305 |
| url | https://amt.copernicus.org/articles/18/3305/2025/amt-18-3305-2025.pdf |
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