Claim Missing Document
Check
Articles

Found 13 Documents
Search
Journal : GANEC SWARA

PENGARUH PENETAPAN WAKTU HUJAN TERHADAP BESARNYA DEBIT BANJIR RENCANA NEGARA, I D G JAYA; WIRADARMA, LALU WIRAHMAN; YASA, I WAYAN; SAIDAH, HUMAIRO; SAADI, YUSRON; SULISTIYONO, HERI; RAI K W, I G AGUNG NGURAH
GANEC SWARA Vol 17, No 4 (2023): Desember 2023
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v17i4.628

Abstract

The aim of this study is to determine the discharge of rainwater runoff from different durations of rain, to determine the magnitude of the differences in the discharge of rainwater runoff produced, and to determine the differences in channel dimensions resulting from differences in the duration of rain used. This study uses 6 years of daily rainfall data recorded at Bengel Station, to calculate the planned flood discharge as an alternative for controlling rain runoff in the Green Asia Housing area with a land area of ±6 hectares, a test time was used with rain times selected as 24 hours and 5 hours. Flood discharge is calculated using the Rational formula with a rain return period of 2 years according to the design area. The results of data analysis will be presented in the form of tables, discussed and concluded descriptively.The results of the study show that there is indeed a quite large difference in flood discharge, where the use of a 24-hour rain period produces a planned discharge that is around 32% lower than the use of a 5-hour rain period. The dimensions of the channel produced for a discharge with a rain duration of 24 hours are also smaller than the dimensions produced by a flow discharge with a rain duration of 5 hours. The fact is that rain events with a duration of shorter than 24 hours are more common than rain events lasting a full day.
PENGUKURAN KINERJA DATA HUJAN CHIRPS DALAM PENILAIAN KEKERINGAN DI LOMBOK TENGAH SAIDAH, HUMAIRO; YASA, I WAYAN; SULISTIYONO, HERI
GANEC SWARA Vol 18, No 1 (2024): Maret 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i1.790

Abstract

Drought index analysis requires long data requirements. However, the complete and long recording periods of rainfall data are still the main obstacles to meeting rainfall data needs. Apart from that, there are still many areas that do not have adequate and evenly distributed rain recording stations. This research aims to see if the use of CHIRPS (Climate Hazard Group Independent Precipitation with Station Data) satellite rainfall data can be used to calculate the drought index using the SPI (Standardized Precipitation Index) method. The research began with collecting rain data from ARR measurements and downloading CHIRPS satellite rain data. CHIRPS data is corrected first by reducing the correction factor using simple regression where CHIPS data is the independent variable and ARR data is the dependent variable. CHIRPS data was then corrected and used in calculating the drought index using the SPI method. The results of the SPI calculation from the corrected CHIRPS rainfall data were then compared with the drought index resulting from analysis using ARR data. The results obtained show that both CHIRPS data and ARR data produce the highest drought index with the Normal severity category. The drought index resulting from CHIRPS data analysis is stated to be quite good and corresponds to a suitability level of 60%. So the CHIRPS data is declared good and can be used for drought analysis in this region.
PENGENDALIAN BANJIR SUNGAI BENGKANG UNTUK MENDUKUNG KAWASAN EKONOMI KHUSUS MANDALIKA DEWANDHA MAS AGASTYA; I WAYAN YASA; HUMAIROH SAIDAH; MUH BAGUS BUDIANTO; I DEWA GEDE JAYANEGARA
GANEC SWARA Vol 18, No 4 (2024): Desember 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i4.1110

Abstract

Changes in land use that have occurred over a period of several years in the Kuta area have resulted in a lack of water catchment areas. The impacts caused by the lack of catchment areas are flooding and reduced water quality in rivers. The flood disaster in the Bengkang River caused damage to bridge infrastructure and people’s homes. The Bengkang river basin is divided into 3 sub – basins with a total area of 10,45 km2. Based on the results of the design flood analysis using the Nakayasu synthetic unit hydrograph method, the largest flood discharge value was obtained, namely 32,859 m3/second for a return period of 25 years. Hydraulic modeling was carried out to determine the water level and the ability of the river section to receive flow using HEC-RAS 6.1 software. Based on the simulation results with a return period of 5 years, it is known that flooding occurs in the middle and lower reaches of the Bengkang River, so structural mitigation is needed, namely normalization and repair of embankments. A 25-year return period flow simulation was carried out using a cross – section of the channel plan and no runoff was obtained in the Bengkang River.
Co-Authors - - Akmaluddin Abdi Fadillah Adhitya Halim .P Agastya, Dewandha Mas Agung Budi Muljono Agus Soroso Agus Suroso Agus Suroso Agus Suroso Agus Suroso Agus Suroso AGUSTONO SETIAWAN Agustono Setiawan Aini, Rohadatul Akbari, Gilang Zulfa Akmaludin Akmaludin, Akmaludin Alawiyah, Tutik Ali, Ahmad Muhammad Ali, AM Alit, I Dewa Made Anid Supriyadi ANID SUPRIYADI ANID SUPRIYADI Anid Supriyadi Anid Supriyadi Anid Supriyadi ANNISA HUMAYRA DIRGANTARA Aprilestari, Nadia Ardhanareswari, Putu Diah Atas Pracoyo ATAS PRACOYO Aulani, Haniatul Azizah, Fitri Azizah, Hayatul Bagus Widhi Dharma S Bakti, Lalu Arifin Aria Bambang Hariyanto Bawu, Mario Alfredo Budianto, M Bagus BUDIANTO, M. BAGUS Budianto, Muh Bagus Budianto, Muh. Bagus Desi Widianty Desi Widiyanti DEWANDHA MAS AGASTYA Dewandha Mas Agastya Dewandha Mas Agastya DIANA PUSPITA DEWI Didi Supriyadi Agustawijaya Didik Agusta Wijaya Eko Pradjoko Eniarti, Miko Ery Setiawan ERY SETIAWAN Ery setiawan Ery Setiawan Faeruzza Athiya Farhan, Agil Fera Fitri Salsabila Firdaus FITRAH RIZAL DWIASMORO Hanesfa, Hafiz Rahman Hanifah, Lilik Hardiyanti, Ernita Hartana Hartana, Hartana Hasim Hasyim Hasyim Hasyim hasyim, hasyim Hendri Hermawan Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono Heri Sulistiyono, Heri Heri Sulistyono Heri Sulistyono Hidayat, Syamsul Hijriati, Awwalus Sanatil I D G Jaya Negara I D G JAYA NEGARA I DEWA GEDE JAYA NEGARA I DEWA GEDE JAYA NEGARA I DEWA GEDE JAYA NEGARA I Dewa Gede Jaya Negara I Dewa Gede Jaya Negara I Dewa Gede Jaya Negara I DEWA GEDE JAYANEGARA I Dewa Gede Jayanegara I Dewa Jayanegara I Kade Wiratama I Wayan Suteja I Wayan Yasa I Wayan Yasa I Wayan Yasa I Wayan Yasa, I Wayan I.D.G Jayanegara IAO Suwati Sideman Ida Ayu Oka Suwati Sideman Ida Ayu Sri Adnyani IDG Jaya Negara Imani, Nuansa Putty Irawan, Almira Ursula Irwan Irwan Isnaniar Jauhar - Fajrin Jauhar Fajrin, Jauhar Jaya Negara, I Dewa Gede JAYANEGARA, I DEWA GEDE Junaidin, Junaidin KAMTIKA, MIA JULIA Karyawan, Dewa Made Alit Karyawan, I Dewa Made Alit Kencana, Ida Bagus Adi KHAIRUDIN KHAIRUDIN Khalil, Lutfhi Riza Kusuma, Lalu Dea Maulana Diendy Lalu Dwiki Axela Andriawan Lalu Wirahman Lalu Wirahman Wiradarma Lia Hidayaturrohmi Lilik - Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah LILIK HANIFAH Lilik Hanifah Lilik Hanifah Lilik Hanifah Lilik Hanifah M Bagus Budianto M Bagus Budianto M. BAGUS BUDIANTO M. BAGUS BUDIANTO Made Mahendra Mahendra, Made Merdana, I Nyoman Muh Bagus Budianto Muh Bagus Budianto MUH BAGUS BUDIANTO Muh Syahid Muh. Bagus Budianto MUH. BAGUS BUDIANTO Muh. Bagus Budianto Muh. Bagus Budianto Muhajirah Muhammad Bagus Budianto N. Nurchayati Natalia, Elya Natsir, Abdul NEGARA, I D G JAYA Negara, I Dewa Jaya Negara, IDG Jaya Niam, Siti Nur Dian Nufalia Hidayati Nugroho, Riko Salim Nur Chayati Nurrachman PRACOYO, ATAS Purwangsa, Herdi Putra, I Ketut Perdana Putra, IB Giri Putra, Rizki Pradana Qarina, Husnul RAI K W, I G AGUNG NGURAH Ratna Yuniarti Ratna Yuniarti Ratna Yuniati Rohani Rohani Rohani Rohani Rostihanji rosyadi, gusman Saiful Anwar Salehuddin Salehuddin Salehuddin Salehuddin, Salehuddin Salehudin Salehudin Salehudin Salehudin, Salehudin Salsabila, Fera Fitri Salsabila, Zelvia Seniari, Ni Made Shofia Rawiana Shofia Rawiana Sideman, IAO Suwati Sofia - Rawiana Srikus Saptaningtyas, Rini Sulistyono, Heri Suparjo Suparjo Suparjo Supriadi, Anid SUPRIYADI, ANID Supriyatna Suyasa, I K Agus Teti Handayani Tri Rachmanto Tri Rachmanto Tri Rachmanto Veithzal Rivai Zainal Waiduri, Siti Zuhara Faradisa Wardana, I G A N K Widyasari, Ni Made Cahya Devi WIRADARMA, LALU WIRAHMAN WIRADHARMA, LALU WIRAHMAN Wirahman, Lalu Yuli Yani, Puji Rizki Yuniati, Ratna Yusron Saadi Zamharia, Martiana