OPTIMASI HYDROGRAF SATUAN SINTETIS GAMA 1,SCS, DAN NAKAYASU TERHADAP HYDROGRAF TERUKUR SUNGAI SEKANAK DI KOTA PALEMBANG SUMATERA SELATAN

NURIZA, MUHAMMAD ADE ICHSAN and Yuono, Agus Lestari (2025) OPTIMASI HYDROGRAF SATUAN SINTETIS GAMA 1,SCS, DAN NAKAYASU TERHADAP HYDROGRAF TERUKUR SUNGAI SEKANAK DI KOTA PALEMBANG SUMATERA SELATAN. Undergraduate thesis, Sriwijaya University.

	Text RAMA_22201_03011382025109.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (9MB) | Request a copy
	Text RAMA_22201_03011382025109_TURNITIN.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (13MB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_01_front_reff.pdf - Accepted Version Available under License Creative Commons Public Domain Dedication. Download (3MB)
	Text RAMA_22201_03011382025109_0024056802_02.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (528kB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_03.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (459kB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_04.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (1MB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_05.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (29kB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_06_ref.pdf - Bibliography Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (70kB) | Request a copy
	Text RAMA_22201_03011382025109_0024056802_07_lamp.pdf - Accepted Version Restricted to Repository staff only Available under License Creative Commons Public Domain Dedication. Download (2MB) | Request a copy

Abstract

The Sekanak watershed with an area of 11.50 km² and a main river length of 5.92 km is generally a residential area, industry and shrubs. The cause of flooding in the Sekanak watershed due to land conversion of green open space into residential areas will affect the ability of water infiltration by the soil, and water quality along the watershed. This study aims to describe the optimization of Gama 1, SCS, and Nakayasu Synthetic Unit Hydrographs on the Measured Hydrograph of Sekanak River in Palembang City, South Sumatra. The results of the analysis of synthetic unit hydrographs against the measured unit hydrograph in the Sekanak watershed can be concluded that the acquisition of peak discharge value (Qp) and peak time (Tp) which is closest to the Measured Unit Hydrograph is HSS Nakayasu. HSS Gama I analysis results have a peak discharge (Qp) of 1.09 m³/det, with time to peak (Tp) for 2.02 hours. HSS SCS has a peak discharge (Qp) of = 0.98 m³/det, with time to peak (Tp) for 2.22 hours and HSS Nakayasu has a peak discharge (Qp) of 1.77 m³/det, with time to peak (Tp) for 1.17 hours. The peak discharge value (Qp) and peak time (Tp) which is closest to the Measured Unit Hydrograph is HSS Nakayasu. After calibration with the help of a solver, the optimization coefficient for Gama I is obtained, the average peak time is 0.33 hours and the peak discharge is 1.33 m³/det, the SCS average peak time is 0.30 hours and the peak discharge is 1.26 m³/det and Nakayasu average peak time is 0.57 hours and the peak discharge is 0.70 m³/det., DAS Sekanak dengan luas 11,50 km² dan panjang sungai utama 5,92 km pada umumnya merupakan daerah pemukiman, perindustrian dan Semak. Penyebab terjadinya banjir di DAS Sekanak karena alih fungsi lahan ruang terbuka hijau menjadi kawasan permukiman akan mempengaruhi kemampuan resapan air oleh tanah dan kualitas air di sepanjang Daerah Aliran Sungai (DAS). Penelitian ini bertujuan untuk mengambarkan optimasi Hidrograf Satuan Sintetis Gama 1, SCS, dan Nakayasu terhadap Hidrograf Terukur Sungai Sekanak di Kota Palembang Sumatera Selatan. Hasil analisis hidrograf satuan sintetik terhadap hidrograf satuan terukur di DAS Sekanak maka dapat disimpulkan bahwa perolehan nilai debit puncak (Qp) dan waktu puncak (Tp) yang paling mendekati Hidrograf Satuan Terukur adalah HSS Nakayasu. Hasil analisis HSS Gama I mempunyai debit puncak (Qp) sebesar 1,09 m³/det, dengan waktu menuju puncak (Tp) selama 2,02 Jam. HSS SCS mempunyai debit puncak (Qp) sebesar = 0,98 m³/det, dengan waktu menuju puncak (Tp) selama 2,22 Jam dan HSS Nakayasu mempunyai debit puncak (Qp) sebesar 1,77 m³/det, dengan waktu menuju puncak (Tp) selama 1,17 Jam. Nilai debit puncak (Qp) dan waktu puncak (Tp) yang paling mendekati Hidrograf Satuan Terukur adalah HSS Nakayasu. Setelah dilakukan kalibrasi dengan bantuan solver didapatkan koefisien optimasi untuk Gama I rata-rata waktu puncaknya sebesar 0,33 Jam dan debit puncaknya sebesar 1,33 m³/det, SCS rata-rata waktu puncaknya sebesar 0,30 Jam dan debit puncaknya sebesar 1,26 m³/det dan Nakayasu rata-rata waktu puncaknya sebesar 0,57 Jam dan debit puncaknya sebesar 0,70 m³/det.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Hydrograf, Optimasi Hydrograf
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA349-359 Mechanics of engineering. Applied mechanics
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Muhammad Ade Ichsan Nuriza
Date Deposited:	14 Jan 2025 08:50
Last Modified:	14 Jan 2025 08:50
URI:	http://repository.unsri.ac.id/id/eprint/164602

Actions (login required)

View Item