CD Skripsi

Analisis Debit Andalan Sungai Mandau Pada Titik Jembatan Sungai Mandau (Jalan Lintas Pekanbaru-Dumai)

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ABSTRACT
The Mandau River is a tributary of the Siak River and plays a vital role in providing
clean water, supporting irrigation, and sustaining the ecosystem in the Bengkalis
and Siak regencies. This study aims to analyze the dependable flow (Q90) of the
Mandau River at the Mandau River Bridge point as a basis for sustainable water
resources planning. The method used is the Mock method, based on the water
balance approach, utilizing rainfall and climatological data from the Kandis and
Buatan Stations for the period 2010–2022. The analysis includes calculations of
evapotranspiration, water availability, and river discharge, processed through
watershed (DAS) delineation using ArcGIS software. The annual dependable flow
at a 90% probability level is 5.594 m³/s, which occurred in 2018. The lowest
monthly dependable flow (Q90) is 0.563 m³/s in September, while the highest is
7.977 m³/s in January. Compared to the monthly Q90 value (e.g., 0.563 m³/s,
representing the minimum dependable flow per month), the annual Q90 value of
5.594 m³/s is significantly higher, as flow value outside the dry season raise the
annual average. However, the monthly Q90 should still be used for raw water system
design, as extreme conditions (such as drought) are more critical for supply
planning than annual averages. These dependable flow values are essential
references in raw water provision planning and highlight the importance of optimal
dependable flow management to ensure a continuous water supply for communities
in the surrounding region.
Keywords: Dependable Flow, Mandau River, Mock Method, Water Availability,
ArcGIS.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1807111097

Penerbit

Pekanbaru : Universitas Riau – F.TEKNIK – sipil., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1807111097

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK SIPIL

Info Detail Spesifik

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Pernyataan Tanggungjawab

daus

Versi lain/terkait

Lampiran Berkas

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