ACCURACY OF RADAR-RAINGAUGE ANALYZED PRECIPITATION: ANALYSIS IN KANTO, KOSHIN-ETSU, AND TOHOKU REGIONS
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- SUZUKI Hiroto
- 東日本旅客鉄道株式会社 JR東日本研究開発センター防災研究所
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- NAKAKITA Eiichi
- 京都大学防災研究所
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- TAKAHASHI Hideo
- 首都大学東京大学院都市環境科学研究科
Bibliographic Information
- Other Title
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- 1kmメッシュ解析雨量の精度検証―関東甲信越地方と東北地方における解析―
- 1km メッシュ カイセキ ウリョウ ノ セイド ケンショウ : カントウ コウシンエツチホウ ト トウホク チホウ ニ オケル カイセキ
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Abstract
In this study, we analyzed the accuracy of 1-km mesh Radar-Raingauge analyzed precipitation transmitted by the Ministry of Land, Infrastructure, Transport and Tourism. This analysis was compared with Radar-Raingauge analyzed precipitation and precipitation data observed by 498 rain gauges installed by East Japan Railway Company in Kanto, Koshin-etsu, and Tohoku regions. As a result, within a 1-hour rainfall, the majority of cases showed close correlation between precipitations provided by Radar-Raingauge analyzed precipitation and by rain gauge, but there were also cases of divergence. Furthermore, precipitations provided by Radar-Raingauge analyzed precipitation tends to average 10 % less than those provided by rain gauges. However, within a 24-hour rainfall, precipitations were closely correlated and on average were practically equal. It should also be mentioned that we found differences in accuracy depending on geographical area; some areas were more closely correlated than others.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73 (4), I_13-I_18, 2017
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680328979584
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- NII Article ID
- 40021162013
- 130006406066
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- NII Book ID
- AN10426673
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- ISSN
- 18808751
- 2185467X
- 09167374
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- NDL BIB ID
- 028107532
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed