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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >
Development of a New Particle Imaging Radiosonde with Particle Fall Velocity Measurements in Clouds
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Development of a New Particle Imaging Radiosonde with Particle Fall Velocity Measurements in Clouds |
| Authors: | Suzuki, Kenji Browse this author | | Hara, Yurika Browse this author | | Sugidachi, Takuji Browse this author | | Shimizu, Kensaku Browse this author | | Fujiwara, Masatomo Browse this author →KAKEN DB |
| Issue Date: | 31-Oct-2023 |
| Journal Title: | SOLA |
| Volume: | 19 |
| Start Page: | 261 |
| End Page: | 268 |
| Publisher DOI: | 10.2151/sola.2023-034 |
| Abstract: | A new particle imaging radiosonde “Rainscope” has been developed, and for the first time, particle fall velocity measurement functionality was added to a balloon-borne device. Rainscope can capture a clear still image of precipitation particles in a cloud when they interrupt an infrared beam, using a CMOS camera equipped with an electronic shutter. It can also record the time when a particle passes the upper and lower built-in infrared sensors, enabling measurement of the velocity of falling precipitation particles. For ground testing in rain and snow, a ground-based Rainscope showed raindrop/snowflake size-fall velocity distributions similar to those obtained in previous studies. In a comparison with a Parsivel2 disdrometer in rain, the Rainscope results were in good agreement with the distributions obtained by an adjacent Parsivel2. In a test flight of Rainscope into a stratiform cloud, raindrops, mostly melted particles, snowflakes in the process of melting, graupel, and snowflakes were observed. It was observed that the fall velocity varied depending on the type of solid precipitation particles. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/90906 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 藤原 正智
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