2009 Fiscal Year Final Research Report
Estimation of raindrop size distribution parameter using 2-scale model
| Project/Area Number |
19540463
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Shimane University |
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Principal Investigator |
KOZU Toshiaki Shimane University, 総合理工学部, 教授 (00314617)
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| Co-Investigator(Kenkyū-buntansha) |
KASHIAWAGI Nobuhisa 統計数理研究所, データ科学研究系, 教授 (50150032)
SHIMOMAI Toyoshi 島根大学, 総合理工学部, 助教 (30325039)
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| Co-Investigator(Renkei-kenkyūsha) |
IGUCHI Toshio (独)情報通信研究機構, 電磁波計測研究センター, 研究センター長 (20358980)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 気象 / リモートセンシング / 降雨レーダ / 雨滴粒径分布 |
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| Research Abstract |
The modeling and its parameter estimation of raindrop size distribution (DSD) are important for the accuracy improvement in radar remote sensing of rainfall. Based on past studies on DSD modeling and radar rainfall estimation algorithms, the concept of "2-scale" DSD model was proposed. A new method for the DSD parameter estimation was developed. This method was applied to several locations in the world and statistical properties of DSD parameters were elucidated. In addition, it was confirmed that DSD parameters can be estimated from spaceborne radar measurements. A dual-frequency atmospheric radar algorithm was developed to estimate vertical profile of DSD.
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