A comparison of techniques for hydrograph recession analysis

Joko Sujono, Shiomi Shikasho, Kazuaki Hiramatsu

研究成果: Contribution to journalArticle査読

61 被引用数 (Scopus)

抄録

A comparison between commonly used techniques for hydrograph recession analysis, namely the semi-logarithmic plot of a single recession segment, the master recession and a relatively new approach based on wavelet transform was carried out. These methods were applied to a number of flood hydrograph events of two catchments in West Java, Indonesia. The results show that all the methods tested produce reasonable and comparable results. However, problems arise in the semi-logarithmic plot and the master recession, i.e. determining the recession parameter K is not an easy task especially where the plotted data on a semi-logarithmic plot is not a linear but a curved line. On a curved line, the end of direct flow or starting point of baseflow is not clear and it is quite difficult to identify. Hence, the best line as a basis for computing the recession parameter K becomes uncertain. The wavelet transform approach, however, produces promising results and minimizes a number of problems associated with hydrograph recession analysis. The end of direct flow and the location of the baseflow component are easily determined through the wavelet maps.

本文言語英語
ページ(範囲)403-413
ページ数11
ジャーナルHydrological Processes
18
3
DOI
出版ステータス出版済み - 2 28 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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