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Decision of minimum rain gauge density in a combined radar-rain gauge rainfall observation system: a case study of the Imjin River Basin, Korea
- Authors
- Kim, Kyoungjun; Kim, Keewook; Yoo, Chulsang
- Issue Date
- 2010
- Publisher
- ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
- Keywords
- radar; rain gauge; combined observation; Imjin River Basin; North Korea
- Citation
- WATER INTERNATIONAL, v.35, no.1, pp.49 - 62
- Indexed
- SCIE
SCOPUS
- Journal Title
- WATER INTERNATIONAL
- Volume
- 35
- Number
- 1
- Start Page
- 49
- End Page
- 62
- ISSN
- 0250-8060
- Abstract
- This study reviews combined rainfall observation using both radar and rain gauges. Sampling error theory is introduced and applied to an evaluation of the rain gauge network of the upstream region of the Imjin River Basin in North Korea. Under the assumption that the Ganghwa Radar is properly calibrated, an additional 13 rain gauges (including the eight that are currently in operation) is deemed sufficient to secure the quality of rainfall observation with 37 rain gauges without radar.
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