DEVELOPMENT OF A NEW CAMERA SYSTEM FOR CLOUD IMAGE VELOCIMETRY

DOI Web Site 8 References
  • TOSHIMA Shogo
    東京理科大学大学院 創域理工学研究科社会基盤工学専攻
  • NAKAYOSHI Makoto
    東京理科大学 創域理工学部社会基盤工学科
  • HAYASHI Motoki
    東京理科大学大学院 創域理工学研究科社会基盤工学専攻

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  • Cloud Image Velocimetryに特化した撮影システムの構築

Abstract

<p> Data assimilation of overhead wind speeds is necessary to improve the accuracy of forecasting weather phenomena that have been aggravated by global warming in recent years. We proposed a new method of measuring the overcast wind field by continuously capturing cloud images with multiple inexpensive timelapse cameras and identifying the advection velocity of clouds. However, the time synchronization and angle of view of the cameras used affected the accuracy of the wind speed calculation. Therefore, we constructed a GPS-equipped imaging system with an extended angle of view and a high dynamic range image sensor. Simultaneous observations were made with a previous camera system and the constructed imaging system. With the new camera system, more wind vectors were identified than the previous one due to wider angle lens and image sensor.</p>

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