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TAKEYAMA Yuko
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Research Interests 【 display / non-display 】
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Wind assessment
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Marine Meteorology
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Offshore wind generation
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Satellite remote sensing
Research Areas 【 display / non-display 】
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Energy Engineering / Earth resource engineering, Energy sciences
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Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Marine engineering
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Natural Science / Atmospheric and hydrospheric sciences
Papers 【 display / non-display 】
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沿岸域における渦相関法とバルク法による 大気安定度評価方法の比較
西見耕太，竹山優子，稲津大祐 , 2021.12
日本気象学会2021年度秋季大会予稿集
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合成開口レーダを用いた海上風推定に適した風向情報
大久保 諒也，竹山 優子，池谷 毅，大澤 輝夫 , 2021.07
土木学会論文集B2（海岸工学）
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Sentinel-1搭載合成開口レーダを用いた日本沿岸の海上風推定
大久保 諒也，竹山 優子，池谷 毅，大澤 輝夫 , 2020.07
土木学会論文集B3（海洋開発）
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A comparison between Advanced Scatterometer and Weather Research and Forecasting wind speeds for the Japanese offshore wind resource map
Yuko Takeyama, Teruo Ohsawa, Jun Tanemoto, Susumu Shimada, Katsutoshi Kozai, Tetsuya Kogaki , 2020.03
Wind Energy
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Accuracy Comparison of Coastal Wind Speeds between WRF simulations using Different JMA GPV Datasets
1. Takeshi Misaki, Teruo Ohsawa, Mizuki Konagaya, Susumu Shimada, Yuko Takeyama and Satoshi Nakamura , 2019.07
Energies
Grant-in-Aid for Scientific Research 【 display / non-display 】
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洋上風力発電のためのX-band合成開口レーダの降雨影響把握と利用可能性評価
Project Period (FY)： 2023/04 - 2028/03 Investigator(s): 竹山優子
Grant-in-Aid for Scientific Research(C) Principal Investigator 23K04249
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Project Period (FY)： 2022/04 - 2025/03 Investigator(s): 大澤 輝夫
Grant-in-Aid for Scientific Research(B) Co-Investigator 23K23286
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Improving the Reliability of Coastal Wind Statistics Using Synthetic Aperture Radar
Project Period (FY)： 2019/04 - 2023/03 Investigator(s): Takeyama Yuko
Grant-in-Aid for Scientific Research(C) Principal Investigator 19K04856
In this study, the accuracy of wind speed estimation in coastal areas of Japan using a synthetic aperture radar (SAR) onboard Sentinel-1 was clarified, and a comparison of multiple methods was conducted for identifying suitable wind direction for the wind speed retrieval.
The results show that smoothing at 500 m is effective in reducing the effects of speckle noise in SAR images, artificial structures and breaking waves that are common in coastal areas. The results also showed the effectiveness of the wind direction information from the Sentinel-1 OCN product. It means that we can retrieve wind speeds from SAR images without wind direction information from external sources. -
Establishment of a reliable and bankable method for offshore wind resource assessment
Project Period (FY)： 2017/04 - 2020/03 Investigator(s): Ohsawa Teruo
Grant-in-Aid for Scientific Research(B) Co-Investigator 17H03492
For offshore wind development, it is necessary to obtain high-quality bankable wind data, by carrying out field observation at a candidate site selected from the nationwide offshore wind resource map. This project conducts a comprehensive wind observation and numerical simulation for the coastal waters off Kamisu, Ibaraki Prefecture, using vertical and scanning Doppler LiDARs as well as meteorological observation equipment on a pier and a buoy, in order to establish a reliable and accurate method for offshore wind resource assessment.
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Project Period (FY)： 2015/04 - 2018/03
Grant-in-Aid for Young Scientists(B) Principal Investigator 15K21664
Lesson Subject 【 display / non-display 】
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Marine Meteorogical Analysis
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Research in Marine Resources and Energy
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Lesson Subject（Advanced Course）
Atmospheric Science