APLIKASI METODE L-MOMENT UNTUK ANALISIS BANJIR REGIONAL DI WILAYAH SUNGAI BATANGHARI PROVINSI JAMBI
Information on flood magnitudes and their frequencies are needed for design of hydraulic structures. Regional flood frequency analysis solve the problem of estimating the extreme flood events in Batanghari River Basin for catchments having short data records or ungauged catchments,such as L-moment m...
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| Main Authors: | , |
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| Format: | Theses and Dissertations NonPeerReviewed |
| Published: |
[Yogyakarta] : Universitas Gadjah Mada
2011
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/89543/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51778 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Information on flood magnitudes and their frequencies are needed for
design of hydraulic structures. Regional flood frequency analysis solve the
problem of estimating the extreme flood events in Batanghari River Basin for
catchments having short data records or ungauged catchments,such as L-moment
method which are linear combination of order statistics. The main advantage of Lmoments
over conventional moments is that they suffer less from the effect of
sampling variability. It is more robust to outliers and virtually unbiased for small
samples.
L-Moment method is applied at 18 selected watershed of Batanghari River
in Jambi Province and outlier tests. The regional flood frequency analysis using
L-moments consists of four steps (1) screening the data using the discordancy
measure Di,(2) homogeneity testing using the heterogeneity measure H |
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