TY - GEN
T1 - Identification of Hydrological Characteristics and Sediment Rates of Bird Feather-Type Watersheds with SWAT Model
T2 - 7th International Conference on Architecture and Civil Engineering, ICACE 2023
AU - Erwanto, Zulis
AU - Iranata, Data
AU - Maulana, Mahendra Andiek
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
PY - 2024
Y1 - 2024
N2 - Banyuwangi Regency has many bird feather-type rivers due to topographic conditions which are the valleys of Mount Ijen and Mount Raung so that they shape an elongated radial watershed with extreme weather anomalies, high river flow velocity, and have great destructive power when floods occur. The purpose of the research was to identify the hydrological characteristics and sediment rates of bird feather-type watersheds in the Bomo River of Banyuwangi. SWAT modeling is needed to identify these hydrological characteristics and sediment rates, through a process of simulation and calibration with monthly discharge data and then determination of characteristics with the watershed shape factor and Nakayasu synthetic unit hydrograph analysis based on the α, Cs, and Ck coefficients. Hydrological characteristics of the Bomo watershed have an elongated radial shape, having a left-leaning flood hydrograph which indicates in the ascending part the peak discharge of the hydrograph was slow, but the decline downstream was rapid and lasted a long time with a value of α of 0.6, Cs of 1.53, Ck of 1.01–1.29, and have watershed shape factor (SF) of 0.71 with length factor (LF) of 0.071. SWAT modeling in the Bomo watershed resulted in a total annual average erosion rate of 10.83 t/ha and a sediment yield of 26.15 t/ha. The calibration results obtained an MAE value of 0.02; RMSE of 0.80, and a correlation of 0.66. Sediment load analysis is needed to determine sedimentation rates in bird feather-type watersheds that can risk flooding in downstream areas.
AB - Banyuwangi Regency has many bird feather-type rivers due to topographic conditions which are the valleys of Mount Ijen and Mount Raung so that they shape an elongated radial watershed with extreme weather anomalies, high river flow velocity, and have great destructive power when floods occur. The purpose of the research was to identify the hydrological characteristics and sediment rates of bird feather-type watersheds in the Bomo River of Banyuwangi. SWAT modeling is needed to identify these hydrological characteristics and sediment rates, through a process of simulation and calibration with monthly discharge data and then determination of characteristics with the watershed shape factor and Nakayasu synthetic unit hydrograph analysis based on the α, Cs, and Ck coefficients. Hydrological characteristics of the Bomo watershed have an elongated radial shape, having a left-leaning flood hydrograph which indicates in the ascending part the peak discharge of the hydrograph was slow, but the decline downstream was rapid and lasted a long time with a value of α of 0.6, Cs of 1.53, Ck of 1.01–1.29, and have watershed shape factor (SF) of 0.71 with length factor (LF) of 0.071. SWAT modeling in the Bomo watershed resulted in a total annual average erosion rate of 10.83 t/ha and a sediment yield of 26.15 t/ha. The calibration results obtained an MAE value of 0.02; RMSE of 0.80, and a correlation of 0.66. Sediment load analysis is needed to determine sedimentation rates in bird feather-type watersheds that can risk flooding in downstream areas.
KW - Bird feather-type watershed
KW - Hydrograph
KW - Hydrological characteristics
KW - SWAT model
KW - Sediment rate
UR - http://www.scopus.com/inward/record.url?scp=85200385705&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-0751-5_64
DO - 10.1007/978-981-97-0751-5_64
M3 - Conference contribution
AN - SCOPUS:85200385705
SN - 9789819707508
T3 - Lecture Notes in Civil Engineering
SP - 741
EP - 762
BT - Advances in Civil Engineering Materials - Selected Articles from the 7th International Conference on Architecture and Civil Engineering ICACE 2023
A2 - Nia, Elham Maghsoudi
A2 - Awang, Mokhtar
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 15 November 2023 through 15 November 2023
ER -