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All Journal Lentera Hukum Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Sains Teknologi dan Lingkungan (JSTL) Civil and Environmental Science Journal (CIVENSE) Jurnal Pengabdian Magister Pendidikan IPA Awang Long Law Review GANEC SWARA Jurnal Simbur Cahaya Jurnal Gema Ngabdi Media Iuris Spektrum Sipil Unram Journal of Community Service (UJCS) INDEPENDEN: Jurnal Politik Indonesia dan Global Suloh : Jurnal Fakultas Hukum Universitas Malikussaleh Jurnal Bakti Nusa Inicio Legis : Jurnal Hukum Jurnal Pepadu Cendekia: Journal of Law, Social and Humanities Acten Journal Law Review Jurnal Wicara Desa
I Wayan Yasa, I Wayan
Jurusan Teknik Sipil Fakultas Teknik Universitas Warmadewa
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Journal : GANEC SWARA

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KOEFISIEN LIMPASAN PERMUKAAN PADA PERKERASAN PAVING BLOCK BERPORI YASA, I WAYAN; SUPRIYADI, ANID; PRAJNA D, KADEK AGUS
GANEC SWARA Vol 14, No 2 (2020): September 2020
Publisher : Universitas Mahasaraswati Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v14i2.158

Abstract

The use of pavement is increasing, especially in urban areas. Various types of pavement are used including asphalt, concrete and paving blocks. The use of pavements tightens the filtration and increases the volume of surface runoff. One of the pavements used to reduce runoff is paving blocks. The open area between paving blocks is the most influential factor in increasing water infiltration in paving blocks. The larger the opening area in the paving, the more water absorption capacity will be.This research uses infall simulator to model rain. The pavement used is a square porous paving block with a size of 20 x 10 x 8 cm. Variations in the number of pores are 3 holes, 5 holes and 9 holes. The area comparisons between paving blocks and pore holes were 99.4% and 0.6%, 99% and 1%, 98.2% and 1.8%, respectively. Measurements taken are the measurement of rain intensity, runoff volume, infiltration volume and surface break-even coefficient (C).The results showed that the addition of pore holes had an effect on the surface runoff coefficient. In square paving blocks without pores, the coefficient value is greater. Poreless square paving blocks have the highest runoff coefficient with values ranging from 0.41 to 0.45, square paving blocks with 3 porico holes, runoff efficiency ranges from 0.39 to 0.43, paving blocks with 5 pore runoff coefficients range from 0.38 - 0.42, and a square paving block with 9 pore holes, the smallest runoff coefficient ranges from 0.37 to 0.41.
PENGARUH PENEMPATAN BENDUNG DI HILIR BELOKAN SUNGAI TERHADAP PEMBENTUKAN KONFIGURASI DASAR DAN SEDIMEN TERANGKUT NEGARA, I DEWA GEDE JAYA; PUTRA, IDA BAGUS GIRI; YASA, I WAYAN; DEWI, KURNIA
GANEC SWARA Vol 14, No 2 (2020): September 2020
Publisher : Universitas Mahasaraswati Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v14i2.148

Abstract

Weir is one of the water buildings built across the river. Weirs are needed to elevate the river water level so that it meets the elevation of irrigation needs. In very diverse watershed conditions, it is very possible that a dam was built in a river channel that is not ideal because the river channel turns so that the building becomes less safe. To be able to know the safety of the weir from erosion that can cause the weir to collapse and break or overturn, it is necessary to conduct an experimental laboratory research on the position of the weir in the downstream of a river bend. Research related to its effect on sediment transport, especially in the formation of basic configurations needs to be known, because erosion at the bottom is the initial process of weakening the weir security. This research was conducted in the Hydraulics and Coastal Laboratory of FT. The irram in a river flume with a length of 8 m and a width of 50 cm. Weir test is carried out with 4 variations of discharge and 3 variations of the position of the weir downstream of the channel bends. Sedimentation data were analyzed by the methods of Mayer, Peter, Muler (M.P.M), Einstein and Shinohara-Tsubaki and topographic data analysis using the Surfer program. The results showed that in general the largest sediment transport occurred in the position of weir I at a distance of ½ channel width downstream of the center of the channel bends for all tests, with the magnitude of sediment transport occurring from the MPM method Qs = 1x10-4 m3 / dt / m, Einstein Qs = 6,371x10-6 m3 / sec / m, and Shinohara-Tsubaki Qs = 1,7951x10-4 m3 / sec / m. More dominant scouring occurs at the foot of the weir downstream, with the basic configuration formed in the form of antidunes and standing waves, and based on the Froude (Fr) flow rate including subcritical flow (Lower Flow Regime) with the basic configuration form of ripples and dunes
APLIKASI IRIGASI TETES BERTINGKAT PADA TANAMAN SEMUSIM MENDUKUNG KETAHANAN PANGAN KELUARGA DI LINGKUNGAN PERMUKIMAN KOTA MATARAM NEGARA, I DEWA GEDE JAYA; SUPRIYADI, ANID; PRACOYO, ATAS; YASA, I WAYAN
GANEC SWARA Vol 18, No 3 (2024): September 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i3.1050

Abstract

The use of multistage drip irrigation needs to be supported by adequate planting media so that irrigation water can be provided optimally. The planting medium used is practically soil mixed with compost and put in a polybag. Therefore, by adding compost with a certain composition to the soil, it is hoped that a good planting medium will be obtained. This test aims to determine the effect of using cocopeat compost and cow compost as well as soil as a planting medium in polybags on providing multistage drip irrigation. Flow characteristics on the distribution of irrigation water, its absorption capacity, absorption rate and irrigation uniformity achieved. The test was carried out on a ½” PVC drip irrigation network with a 2 lt/hour emitter consisting of 4 network levels on land measuring 2m x 4m, water source from a tower with a height of around 2.5m and a tank capacity of 150 liters. Test data for analysis consists of irrigation volume and distribution, drip system flow rate, irrigation uniformity (Cu), infiltration rate and irrigation depth. The analysis results show that the average irrigation distribution on floors 1 to 4 is 3028ml, 2937ml, 2848.25ml and 2793 ml, with flow rates on floors 1 to 4 of 40ml/s, 39 ml/s, 38 ml/s and 37 ml/sec. The amount of drip discharge (qt) on the 1st floor was 6.7ml/sec, on the 2nd floor the amount was 6.5 ml/sec, on the third floor it was 6.3 ml/sec and 6.2ml/sec on the 4th floor. Irrigation uniformity was obtained by 96% is considered very good, with an average infiltration rate hc in V2 of 0.04 cm/s, in V3 the hc was 0.03cm/s and in V4 the hc was 0.027cm/s. So the irrigation infiltration rate when using cocopeat tends to decrease if the portion of the planting medium increases, so its use needs to be limited.
ANALISIS POLA SEBARAN KARAKTERISTIK IKLIM DI PULAU SUMBAWA YASA, I WAYAN; SALEHUDIN, SALEHUDIN; SAIDAH, HUMAIRO; JAYANEGARA, I DEWA GEDE; SULISTIYONO, HERI
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.v17i4.619

Abstract

Sumbawa Island is one of the largest islands in West Nusa Tenggara (NTB) Province with an area of 15,414.5 km². Climatic conditions greatly influence the economy of the people of Sumbawa Island because most of the population earns their living as farmers, planters and livestock breeders. Extreme climate changes often occur. This results in natural disasters such as floods, landslides and drought. Sumbawa Island itself often experiences floods in the rainy season and droughts in the dry season. Knowledge of climate characteristics will really help the people there, in overcoming and avoiding the impacts of extreme climate change now and in the future. This research functions to provide information regarding the climate characteristics of Sumbawa Island.The method used to analyze the climate characteristics of Sumbawa Island is the Thornthwaite and Schmidth-Fergusson climate classification methods. The data used is secondary data for 14 years (2005-2018). This data was obtained from the NT I River Basin Center and generation data using the Thomas-Fiering model for the next 10 years (2019-2028).The results of the analysis showed that according to Thornthwaite, Sumbawa Island in the 2005-2018 and 2019-2028 periods had the same climate type, namely a dry climate (E) based on an average PE index value < 16 and a tropical climate (A) based on an average TE index value. ≥ 128. According to Schmidth-Fergusson in the 2005-2018 and 2019-2028 periods, Sumbawa Island has the same 3 types of climate, namely a moderate climate (D) with a value of 0.6 ≤ Q < 1, a slightly dry climate (E) with a value of 1 ≤ Q < 1.67 and dry climate (F) with a value of 1.67 ≤ Q < 3.
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.
Co-Authors Adi Wibowo, Yusuf Agastya, Dewandha Mas Agus Suroso Agustono Setiawan Akbar, Tabrani Akbari, Gilang Zulfa Akmaludin Akmaludin, Akmaludin Alit, I Dewa Made Ananta, Muhamad Jefri Bagus Budianto, Muhammad Bakti, Lalu Arifin Aria Bawu, Mario Alfredo Budianto Budianto BUDIANTO, M. BAGUS Budianto, Muh Bagus Cindy Gayatri, Annisa Zerlina Desi Widianty Dewi, Kurnia Didi Supriyadi Agustawijaya Dominikus Rato Eko Pradjoko Emi Zulaika Ery setiawan Fendi Setyawan Ferdiansyah Putra Manggala Galuh Puspaningrum, Galuh H.K, Ajeng Pramesthy Hanifah, Lilik Hardiani K, Ajeng Pramesty Hardiyanti, Ernita Hartana Hartana, Hartana Hasyim hasyim, hasyim Heri Sulistiyono, Heri Hikmawati, Cahya Agustianing Durrah Humaira, Ani Fatin Humairoh Saidah I Dewa Gede Jaya Negara I Wayan Joniarta I Wayan Suteja Ida Ayu Oka Suwati Sideman Isnaniar Jamadi, Yasin Jaya Negara, I Dewa Gede JAYANEGARA, I DEWA GEDE Julio, Ryan Bagus Karmila Santi, Ni Made Karyawan, I Dewa Made Alit Khantasilo, Ananda Kholilah, Iin Nur Kusuma, Ajeng Pramesthy Hardiani Kusuma, Rr. Widyawati Tresna Liaturrahman, Noval M Adriani Harefa, Jemi M. Bisri Mahendra, Made Mas Agastya, Dewandha Merdana, I Nyoman Muhajirah NEGARA, I D G JAYA Negara, I Dewa Jaya Nurardianingsih Nurrachman Osama Riza Rozaldi Pathurahman PRACOYO, ATAS PRAJNA D, KADEK AGUS Pratiwi, Debbry Eka Nuradityas Purwasaputri, Bella Adinda Puspitho Andini, Pratiwi PUTRA, IDA BAGUS GIRI Putri, Fadila Rahmatika Putri, Linda Cristina Putri, Rizky Emayantiara Rahmadi Indra Tektona Rahmawati, Alfina Kusuma RAI K W, I G AGUNG NGURAH Ramdani, Rifki Rara Putri Indraswari Ratna Yuniarti Rohani Rohani Rohani Rozaldi, Osama Riza Saidah, Humairoh Sakroni, Abd Azis Saleh, Ramdan Salehuddin Salehudin Salehudin, Salehudin Santyaningtyas, Ayu Citra Sasmita, Anggi Sholichin, M. Sideman, IAO Suwati SOEKARNO, SASMITO Solihin Sujito Sujito Suparjo Supriyadi , Anid SUPRIYADI, ANID Syntia Dewi, Evrianti Triwulandari, Melsa Ussy Andawayanti Veithzal Rivai Zainal Wahyudi, Mudji Wardana, I G A N K WIRADARMA, LALU WIRAHMAN WIRADHARMA, LALU WIRAHMAN Yuniati, Ratna Yusron Saadi Yusuf Adiwibowo, Yusuf