Scholarlink

Flood hydrograph estimation is the main analysis in river construction design. The Synthetic Unit Hydrograph (SUH) method is an alternative for designing flood hydrographs when hydrological time series data is not available. In fact, the SUH method does not always provide precise results. In this research, direct runoff hydrograph analysis using the Nakayasu and ITB-2 methods was applied to the upper basin of the Progo River. Daily rainfall on 20–26 January 2012. Hydrographs observed from the Borobudur AWLR station were applied for model calibration. Modifications to the equation are carried out to obtain appropriate parameters. The research results show that the modified ITB-2 method is more suitable for use in the upper basin of the Progo River.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Direct Runoff Hydrograph Analysis Using Nakayasu and ITB-2 Methods in Upper Basin of Progo River

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Bayu Krisna Wisnulingga,
  • Puji Harsanto

摘要

Flood hydrograph estimation is the main analysis in river construction design. The Synthetic Unit Hydrograph (SUH) method is an alternative for designing flood hydrographs when hydrological time series data is not available. In fact, the SUH method does not always provide precise results. In this research, direct runoff hydrograph analysis using the Nakayasu and ITB-2 methods was applied to the upper basin of the Progo River. Daily rainfall on 20–26 January 2012. Hydrographs observed from the Borobudur AWLR station were applied for model calibration. Modifications to the equation are carried out to obtain appropriate parameters. The research results show that the modified ITB-2 method is more suitable for use in the upper basin of the Progo River.