Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan
This study attempts to improve the accuracy of wind field simulations in the Weather Research and Forecasting (WRF) model by incorporating Doppler lidar-based wind observations over the Osaka region of Japan. To achieve this, a Doppler lidar was deployed in Osaka city, and multi-layer wind measureme...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/6/972 |
| _version_ | 1797596175093727232 |
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| author | Sridhara Nayak Isao Kanda |
| author_facet | Sridhara Nayak Isao Kanda |
| author_sort | Sridhara Nayak |
| collection | DOAJ |
| description | This study attempts to improve the accuracy of wind field simulations in the Weather Research and Forecasting (WRF) model by incorporating Doppler lidar-based wind observations over the Osaka region of Japan. To achieve this, a Doppler lidar was deployed in Osaka city, and multi-layer wind measurements were obtained for one month (August 2022). These measurements were then assimilated into the WRF model using the observation nudging technique. Two simulations were conducted: one with nudging disabled, and the other with nudging enabled with data assimilation, while keeping all other configurations constant. The results were evaluated by comparing the simulations with the lidar observation at the lidar location where the wind data were nudged during the simulation, as well as with the AMeDAS station observations at other locations far from the lidar. The results indicated that not only the wind field, but other weather variables such as temperature, were better captured in the simulation using lidar-based nudging compared to the simulation without nudging. |
| first_indexed | 2024-03-11T02:47:50Z |
| format | Article |
| id | doaj.art-8b7d030ec41749efa522afdeab796fca |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T02:47:50Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-8b7d030ec41749efa522afdeab796fca2023-11-18T09:14:27ZengMDPI AGAtmosphere2073-44332023-06-0114697210.3390/atmos14060972Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, JapanSridhara Nayak0Isao Kanda1Research and Development Center, Japan Meteorological Corporation, Osaka 530-0011, JapanResearch and Development Center, Japan Meteorological Corporation, Osaka 530-0011, JapanThis study attempts to improve the accuracy of wind field simulations in the Weather Research and Forecasting (WRF) model by incorporating Doppler lidar-based wind observations over the Osaka region of Japan. To achieve this, a Doppler lidar was deployed in Osaka city, and multi-layer wind measurements were obtained for one month (August 2022). These measurements were then assimilated into the WRF model using the observation nudging technique. Two simulations were conducted: one with nudging disabled, and the other with nudging enabled with data assimilation, while keeping all other configurations constant. The results were evaluated by comparing the simulations with the lidar observation at the lidar location where the wind data were nudged during the simulation, as well as with the AMeDAS station observations at other locations far from the lidar. The results indicated that not only the wind field, but other weather variables such as temperature, were better captured in the simulation using lidar-based nudging compared to the simulation without nudging.https://www.mdpi.com/2073-4433/14/6/972WRFobservation nudgingDoppler lidarwind |
| spellingShingle | Sridhara Nayak Isao Kanda Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan Atmosphere WRF observation nudging Doppler lidar wind |
| title | Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan |
| title_full | Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan |
| title_fullStr | Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan |
| title_full_unstemmed | Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan |
| title_short | Examining the Effectiveness of Doppler Lidar-Based Observation Nudging in WRF Simulation for Wind Field: A Case Study over Osaka, Japan |
| title_sort | examining the effectiveness of doppler lidar based observation nudging in wrf simulation for wind field a case study over osaka japan |
| topic | WRF observation nudging Doppler lidar wind |
| url | https://www.mdpi.com/2073-4433/14/6/972 |
| work_keys_str_mv | AT sridharanayak examiningtheeffectivenessofdopplerlidarbasedobservationnudginginwrfsimulationforwindfieldacasestudyoverosakajapan AT isaokanda examiningtheeffectivenessofdopplerlidarbasedobservationnudginginwrfsimulationforwindfieldacasestudyoverosakajapan |