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Water 2016, 8(9), 384;

Web-Based BFlow System for the Assessment of Streamflow Characteristics at National Level

Water Resources Research Center, K-Water Institute, 125, Yuseong-daero, 1698 beon-gil, Yuseong-gu, Daejeon 34045, Korea
Department of Agricultural Civil Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea
Department of Regional Infrastructures Engineering, Kangwon National University, 1 Kangwondaehak Street, Chuncheon 200-701, Korea
Author to whom correspondence should be addressed.
Academic Editor: Benoit Demars
Received: 16 May 2016 / Revised: 16 August 2016 / Accepted: 29 August 2016 / Published: 6 September 2016
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Distinct seasonal characteristics of monsoon climate significantly affect river streamflow in South Korea. The roles of direct runoff and baseflow on streamflow have become more important to ecosystems and human communities in various watersheds of South Korea. Understanding river characteristics, including direct runoff and baseflow, is the first step of river management and can make a significant contribution to maintaining a sustainable and effective river environment. In this regard, this study involves twin objectives: (1) developing the web-based BFlow system to gain advantages in the time and effort required relative to the DOS (Disk Operation System)-based BFlow program; and (2) assessing the contributions of baseflow and direct runoff to streamflow for river management at the national level. For this, we investigated all streamflow gauge stations in South Korea and, then, used the BFlow program to separate baseflow from the available streamflow data. The results showed that baseflow index for 254 streamflow gauge stations ranged from 0.28 to 0.89. Gauge stations with a baseflow index greater than 0.5 accounted for 64% of total stations. The web-based system developed in this study is a more MS (Microsoft) user-friendly version of BFlow. Furthermore, this study illustrated that high baseflow indexes were generally found at gauge stations with a low coefficient of variation of streamflow. The web-based BFlow system will provide understanding to strategically control rivers and improve the efficiency and safety of river management at the national level. View Full-Text
Keywords: baseflow; baseflow separation; BFlow; direct runoff; streamflow baseflow; baseflow separation; BFlow; direct runoff; streamflow

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jung, Y.; Shin, Y.; Won, N.-I.; Lim, K.J. Web-Based BFlow System for the Assessment of Streamflow Characteristics at National Level. Water 2016, 8, 384.

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