Aplikasi Model GR2M Untuk Analisis Ketersediaan Air Di Das Siak Hulu

Fuaji, A. Sulistio (2022) Aplikasi Model GR2M Untuk Analisis Ketersediaan Air Di Das Siak Hulu. Other thesis, Universitas Islam Riau.

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Abstract

Regional development in an area will cause the need for water to continue to increase along with the rate of population growth. The fulfillment of food needs and the activities of the population is always closely related to the need for water. These demands cannot be avoided, but must be predicted and planned for the best possible use. The purpose of this study is to describe the application of the GR2M modeling and the amount of raw water availability in the Siak Hulu watershed. The research method used is descriptive quantitative with data collection techniques in the form of map data, rain data, climatological data and field discharge data. And the research location is in the Upper Siak watershed, namely the Tapung Kiri sub-watershed. The research results show that: 1) The GR2M modeling can be applied to the Tapung Kiri sub-watershed with a performance of R2of 0.41 with a satisfactory interpretation, a correlation coefficient (R) of 0.67 with a strong interpretation, and an efficiency coefficient (CE) of 0.58 with a sufficient optimization interpretation. 2) The mainstay discharge results obtained based on GR2M modeling data for the availability of drinking water (Q99%) in the Upper Siak watershed is 15,69 m3/second.

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