TY - JOUR
T1 - Contribution of Baseflow to River Streamflow
T2 - Study on Nepal’s Bagmati and Koshi Basins
AU - Bastola, Shiksha
AU - Seong, Yeonjeong
AU - Lee, Daeeop
AU - Youn, Ilro
AU - Oh, Sewook
AU - Jung, Younghun
AU - Choi, Gyewoon
AU - Jang, Dongwoo
N1 - Publisher Copyright:
© 2018, Korean Society of Civil Engineers.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Understanding the role of baseflow is important for efficient river management. Hydrograph analysis separates baseflow from varying streamflow hydrographs. Separation of baseflow from streamflow and its analysis are crucial to flow regulations, water quantity, quality, and supply, and habitat. This study attempted to identify the annual and monthly contributions of baseflow on streamflow in Nepal. For this, the three techniques of WHAT, BFLOW, and HYSEP were implemented to separate baseflow from streamflow in two watersheds (the two basins). As a result, baseflow’s contribution is high in the post-monsoon (October and November) and winter seasons (December-February). The Baseflow Index (BFI) slightly decreases in value in the pre-monsoon (March-May) season; in the monsoon season (June-sept), the range of the BFI is at its lowest. As baseflow’s contribution exceeds 45 percent in all seasons, proper assessment of baseflow is crucial to efficient management of river ecology.
AB - Understanding the role of baseflow is important for efficient river management. Hydrograph analysis separates baseflow from varying streamflow hydrographs. Separation of baseflow from streamflow and its analysis are crucial to flow regulations, water quantity, quality, and supply, and habitat. This study attempted to identify the annual and monthly contributions of baseflow on streamflow in Nepal. For this, the three techniques of WHAT, BFLOW, and HYSEP were implemented to separate baseflow from streamflow in two watersheds (the two basins). As a result, baseflow’s contribution is high in the post-monsoon (October and November) and winter seasons (December-February). The Baseflow Index (BFI) slightly decreases in value in the pre-monsoon (March-May) season; in the monsoon season (June-sept), the range of the BFI is at its lowest. As baseflow’s contribution exceeds 45 percent in all seasons, proper assessment of baseflow is crucial to efficient management of river ecology.
KW - baseflow
KW - baseflow index (BFI)
KW - Nepal
KW - seasonal trend
KW - streamflow
KW - water management
UR - http://www.scopus.com/inward/record.url?scp=85049954211&partnerID=8YFLogxK
U2 - 10.1007/s12205-018-0149-9
DO - 10.1007/s12205-018-0149-9
M3 - Article
AN - SCOPUS:85049954211
SN - 1226-7988
VL - 22
SP - 4710
EP - 4718
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
IS - 11
ER -