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| Presentation | 2017-04-21 10:30 Calibration of weather radar using satellite radar Mikoto Taki, Naoya Shibaike, Shigeharu Shimamura, Tomoo Ushio (Osaka Univ.)  AP2017-14 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | 降水量を正確に算出するには気象レーダの較正が必要である．しかし，気象レーダを正確かつ均一に較正することは難しい．そこで，本研究では地上の気象レーダを均質かつ正確に較正するため，GPM主衛星搭載二周波降水レーダ（Global Precipitation Measurement/Dual-frequency Precipitation Radar : GPM/DPR）を用いた地上の気象レーダの較正手法について検討した．GPM/DPRとの比較による較正手法の検討には，本研究グループが開発したフェーズドアレイ気象レーダ（Phased array weather radar : PAWR）とコロラド州立大の気象レーダCHILL(Colorado State University–University of Chicago–Illinois State Water Survey : CSU–CHILL)を用いた．具体的にはPAWR及び，CHILLの観測範囲内を，GPM/DPRがオーバーラップした際の，降雨の観測値を比較することで較正について検討した．提案手法を適用した結果，観測値の平均誤差１.0[dB]以内を達成し，較正目標値である１.0[dB]以内の較正が可能であることが示唆された． キーワード 較正，GPM主衛星搭載二周波降水レーダ，フェーズドアレイ気象レーダ Calibration of weather radar using satellite radar Mikoto Taki Naoya Shibaike Shigeharu Shimamura Tomoo Ushio Graduate School of Engineering, Osaka University 2-1 Yamadaoka, Suita-city,Osaka,565-0871 Japan E-mail: taki.mikoto@comf5.comm.eng.osaka-u.ac.jp Abstract Calibration of weather radar is necessary to accurately calculate precipitation. However, it is difficult to accurately and uniformly calibrate the weather radar. Therefore, we examined the calibration method for the ground weather radar using Global Precipitation Measurement/Dual-frequency Precipitation Radar (GPM/DPR) in order to calibrate the ground weather radar homogeneously and accurately. We used phased array weather radar (PAWR) developed by this research group and Colorado State University’s weather radar CHILL(Colorado State University–University of Chicago–Illinois State Water Survey : CSU–CHILL) for the examination of the calibration method by comparing with GPM / DPR. We compared PAWR’s precipitation data and CHILL’s precipitation data with GPM/DPR when their observation range overlapped. As a result of applying the proposed method, we achieved an average error of observation values within 1.0 [dB]. In this research, it was suggested that calibration within the calibration target value of within 1.0 [dB] is possible． |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Calibration / GPM/DPR / PAWR / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 2, AP2017-14, pp. 69-73, April 2017. | |
| Paper # | AP2017-14 | |
| Date of Issue | 2017-04-13 (AP) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | AP2017-14 |
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| Conference Information | |
| Committee | AP |
| Conference Date | 2017-04-20 - 2017-04-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka university |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2017-04-AP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Calibration of weather radar using satellite radar |
| Sub Title (in English) | |
| Keyword(1) | Calibration |
| Keyword(2) | GPM/DPR |
| Keyword(3) | PAWR |
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| 1st Author's Name | Mikoto Taki |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Naoya Shibaike |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Shigeharu Shimamura |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
| 4th Author's Name | Tomoo Ushio |
| 4th Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-04-21 10:30:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2017-14 |
| Volume (vol) | vol.117 |
| Number (no) | no.2 |
| Page | pp.69-73 |
| #Pages | 5 |
| Date of Issue | 2017-04-13 (AP) |
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