2013 Fiscal Year Final Research Report
Spatio-temporal analysis of snowfalls from the cloud to the ground surface using radar and lidar from the cloud to the ground surface
| Project/Area Number |
22360164
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Ishikawa National College of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
FUJIYOSHI Yashushi 北海道大学, 低温科学研究科, 教授 (40142749)
SHIINA Toru 富山高等専門学校, その他の部局, 教授 (80196344)
KUBO Mamoru 金沢大学, 電子情報学系, 助教 (90249772)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | レーダ反射因子 / 降雪強度 / Ｚ－Ｒ関係 / 降雪粒子特徴量 / 降雪プロファイル / 雲情報 |
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| Research Abstract |
Radar measurements of precipitation are based on the relation between the radar reflectivity factor Z and precipitation rate R. In order to determine the Z-R relationship for snowfall, Z and R have to be measured independently with high accuracy within a short time intervals. It is also important to examine snow particle characteristic (shape, velocity, density, etc.) distinguish between snowflakes and graupels.
In this research, the integrated measurement system for snowfall characteristic evaluation is presented. Various measurement utilities are gathered in one place to allow the snowfall observation on the wide scale by the radars and lidars scanning the lower atmosphere.
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