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KARAKTERISTIK ALIRAN BERDASARKAN ANGKA REYNOLDS (Re) DAN KOEFISIEN GESEKAN (f) SISTEM JARINGAN IRIGASI TETES PVC BERTINGKAT : Flow Characteristics Based on Reynolds Number (Re) and Friction Coefficient (f) Multi-Story PVC Drip Irrigation Network SystemMulti-Story PVC Drip Irrigation Network System Jaya Negara, I Dewa Gede; Widianty, Desi; Saidah, Humairo; Supriyadi, Anid; Suyasa, I K Agus
Spektrum Sipil Vol 11 No 2 (2024): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/spektrum.v11i2.348

Abstract

Jaringan irigasi tetes telah banyak digunakan dalam pertanian di Indonesia terutama untuk irigasi di lahan dengan tanaman hortikultura telah terbukti menguntungkan, akan tetapi dalam aplikasi penggunaan system irigasi tersebut untuk pertanian di lingkungan perumahan yang sempit masih diperlukan pengkajian yang lebih spesifik. Studi ini bertujuan untuk mengetahui besarnya angka Reynolds (Re) dan koefisien gesekan pipa (f) yang terjadi pada jaringan pipa distribusi irigasi tetes karena diperkirakan sangat berpengaruh pada aliran irigasi tetes. Uji dilakukan pada 4 variasi muka air tandon dengan data hasil uji yang diperlukan berupa data debit aliran (Q) dan distribusi aliran dari jaringan tiap level jaringan. Hasil studi menunjukkan bahwa Q akan semakin meningkat jika permukaan air di tangki semakin dinaikan, dan debit aliran terbesar diperoleh pada jaringan irigasi di lantai paling bawah. Besar Q pada muka air tangki variasi 4 diperoleh besarnya untuk Q1 = 99,68 cm3/detik, Q2 = 99,22 cm3/detik, Q3 = 93,21 cm3/detik dan Q4 = 66,68 cm3/detik. Besarnya angka Reynolds (Re) aliran yang diperoleh pada lantai 1berkisaran 12.292 – 10.888, pada lantai 2 diperoleh Re2 sebesar 12.495 – 11.477, pada lantai 3 diperoleh Re3 sebesar 12.695 – 12.037 dan Re4 sebesar 12.892-12.572. Jadi pada dimensi pipa yang tetap diperoleh nilai Re yang dihasilkan akan semakin besar jika debitnya ditingkatkan, sedangkan kisaran nilai koefisien gesekan (f) diperoleh sekitar 0,029 sampai 0,031 untuk semua tingkat jaringan irigasi.
KAJIAN PERENCANAAN SUMUR RESAPAN DALAM MENDUKUNG PERAN SEBAGAI KAWASAN LINDUNG DAN MENGURANGI LIMPASAN DI KELURAHAN CAKRANEGARA SELATAN BARU: Infiltration Wells Design for Supporting the Protected Area Roles and Reducing Runoff in Cakranegara Selatan Baru Village Hanesfa, Hafiz Rahman; Saidah, Humairo; Suroso, Agus
Spektrum Sipil Vol 11 No 2 (2024): SPEKTRUM SIPIL
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/spektrum.v11i2.365

Abstract

Kepadatan yang tinggi di Kelurahan Cakranegara Selatan Baru berkurangnya area resapan air, sehingga membuat air hujan yang jatuh lebih banyak melimpas di atas permukaan tanah. Untuk mengurangi potensi banjir di wilayah seperti ini diperlukan teknologi yang memberi kesempatan air meresap ke dalam tanah salah satunya melalui sumur resapan. Studi ini bertujuan untuk menganalisis kebutuhan sumur resapan dan kemampuannya dalam mengurangi banjir di wilayah Kelurahan Cakranegara Selatan Baru. Analisis dilakukan dengan mengumpulkan data primer berupa kedalaman muka air tanah, dan angka permeabilitas tanah, dan data sekunder berupa data hujan dari Stasiun Bertais. Analisis dimensi sumur resapan dihitung menggunakan metode Sunjoto. Reduksi limpasan permukaan dihitung berdasarkan kemampuan peresapan sumur dan jumlah sumur yang dibangun. Berdasarkan hasil analisis, direncanakan sumur resapan berdiameter 1 m dan kedalaman 2,2 m, sehingga diperoleh kemampuan resapan sebesar 4,57 m³. Jika setiap 250 m² dibangun sumur resapan pada lahan pemukiman, maka akan diperoleh 2227 buah sumur resapan dengan potensi pengurangan limpasan sebesar sebesar 10185,34 m³ atau 71,13 % dari seluruh volume limpasan di Kelurahan Cakranegara Selatan Baru.
Meminimalisir Bencana Kekeringan Menggunakan Sumur Resapan, Biopori, dan Parit Rorak di Desa Jembatan Kembar Timur, Kecamatan Lembar, Kabupaten Lombok Barat Ali, Ahmad Muhammad; Waiduri, Siti Zuhara Faradisa; Saidah, Humairo; Hijriati, Awwalus Sanatil; Niam, Siti Nur Dian; Azizah, Fitri; Aulani, Haniatul; Putra, Rizki Pradana; Azizah, Hayatul; Qarina, Husnul; Khalil, Lutfhi Riza
Jurnal Gema Ngabdi Vol. 6 No. 1 (2024): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v6i1.401

Abstract

Drought is a natural phenomenon in which people have limited access to water resources which are a vital requirement for human, animal, and plant. Drought has a significant impact on human life and is usually directly related to the arising of poverty, outbreaks of disease triggered by sanitation problems, crop failure, hunger, and death. Tibu Lilin Hamlet is one of the areas prone to drought. So, this activity aims to disseminate information on simple water-saving technology through infiltration wells, biopores and rorak ditches. The method used is through counseling and socialization. Socialization activities have been carried out and participated in by the community around the Nurul Jibal mosque. The public enthusiastically listened and actively discussed with the Team. This activity broadened the knowledge of the residents of Tibu Lilin Hamlet regarding the importance of groundwater storing through infiltration wells, biopores and rorak ditches.
Pengenalan Teknik Vertikultur untuk Budidaya Sayuran di Pekarangan Rumah di Desa Gapura Saidah, Humairo; Purwangsa, Herdi; Rohani, Rohani; Karyawan, I Dewa Made Alit; Hasyim, Hasyim; Salehuddin, Salehuddin; Negara, I Dewa Gede Jaya
Jurnal Gema Ngabdi Vol. 6 No. 1 (2024): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v6i1.415

Abstract

The Sustainable Food Home Area Program (KRPL) is an activity that encourages residents to develop a small-scale food crops, animal husbandry and fisheries by utilizing their home gardens. Since community activity are restricted during Covid-19, the economy become unstable and decrease the ability to meet food needs. This activity aims to re-empower the community by introducing a verticulture technique utilizing bamboo and used bowl that are easily found in the village and supporting the KRPL program. The verticulture technique is suitable for application to vegetable plants, including mustard greens, kale, chilies, eggplants and onions. This activity was carried out in Gapura Village, Pujut District, Central Lombok Regency, West Nusa Tenggara. The method used is direct counseling and training in making verticulture media from bamboo. Through this activity, the Gapura village community has additional knowledge and stimulation in creativity to maximize the use of existing land potential to create food resilience especially vegetables and support welfare.
Penyuluhan Tentang Banjir Pada Masyarakat Dan Pemuda di Kelurahan Mandalika Sandubaya Kota Mataram Negara, I Dewa Gede Jaya; Karyawan, I Dewa Made Alit; Supriyadi, Anid; Mahendra, Made; Saidah, Humairo; Merdana, I Nyoman; Sulistiyono, Heri; Yasa, I Wayan; Suparjo, Suparjo; Suroso, Agus
Jurnal Gema Ngabdi Vol. 6 No. 1 (2024): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v6i1.416

Abstract

, because there are still many residents who do not understand what floods are and what to do when experiencing floods. To provide awareness about floods, education about floods must be carried out for children and the elderly so that it occurs. similarities in perception and knowledge about this matter, especially for city residents in upstream areas such as in Mandalika Village. Education about floods is carried out in several stages, including the initial survey stage, coordination, discussion, question and answer activities and evaluation. The counseling material provided includes perceptions about floods, factors that cause floods, ways to avoid and reduce the occurrence of floods and the infrastructure needed to anticipate floods. During the outreach process, discussion and question and answer sessions were also provided, to increase participants' understanding of floods. The result of the service that has been carried out is being able to provide counseling to the community, both young people and parents, totaling 25 representatives who attended, including the management of Banjar Sedana Ayu. Participants have gained knowledge about floods and have understood the phenomenon of flooding and ways to avoid it after a question and answer session at the end of the outreach activity. By having the participants at the location of this trial, some of the people in the Mandalika sub-district already understand how floods occur and are expected to be able to deal with them if they happen.
Revitalisasi Sistem Penyaringan Air Bersih Di Desa Gegerung Kecamatan Lingsar Kabupaten Lombok Barat Budianto, Muh Bagus; Supriadi, Anid; Hartana, Hartana; Fajrin, Jauhar; Saidah, Humairo
Jurnal Gema Ngabdi Vol. 6 No. 1 (2024): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v6i1.419

Abstract

Water is the main need for humans to fulfill life's needs. For humans, clean water is absolutely necessary for various needs, namely for bathing, washing, cooking and so on. There are several water sources that humans can use, including springs, river water and ground water. Water sourced from springs and groundwater is relatively better quality, while water sourced from rivers requires prior management. Gegerung Village is one of the villages in Lingsar District, West Lombok Regency. Some of the people of Gegerung Village depend on their water needs from the Meninting River which passes through their area. The existing water supply system is by tapping directly from the river. Before being distributed, the water first passes through a filtering system so that the water becomes clearer. However, the current condition of the water filtration system cannot function properly so that the distributed water remains dirty. To get clean water again, it is necessary to revitalize the water filtration system. Revitalization is an effort to restore the function of the water filtration system by cleaning and replacing the filter media material. The results of the tests carried out show that there is an improvement in water quality after replacing the filtering media
PEMANFAATAN DATA HUJAN BERBASIS SATELIT CHIRPS UNTUK PEMETAAN HUJAN RANCANGAN DI KABUPATEN LOMBOK UTARA SAIDAH, HUMAIRO; WIRADHARMA, LALU WIRAHMAN; SUPRIYADI, ANID; KAMTIKA, MIA JULIA
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.v18i3.1032

Abstract

The design rainfall value is a critical parameter in flood analysis and water structure design. In general, the design rainfall calculation uses measured rainfall data. However, sometimes it is difficult to find complete rainfall data from evenly distributed rainfall stations and in an extended measurement range. This study aims to test the use of CHIRPS satellite-based rainfall data as an alternative solution for providing data in areas with difficulty with rainfall data. The analysis includes data accuracy and calibration evaluation, followed by design rainfall analysis with frequency analysis and mapping using spatial data processing software. The accuracy test results obtained an average deviation value of the original CHIRPS that did not meet the average NSE value of 0.346. Furthermore, the data was calibrated using the regression method, and corrected data was obtained with an NSE of 0.446 with an interpretation of the meeting. A rainfall analysis was conducted for corrected CHIRPS with ARR (Automatic Rainfall Recorder) measurement as a control. The results obtained the average percentage deviation for design rainfall with a return period of 2, 5, 10, 25, 50, and 100 years using corrected CHIRPS ranging from 18 - 28% lower than design rainfall using ARR. The design rainfall isohyet map using spatial data processing software for the North Lombok Region shows that high design rainfall occurs in the eastern part of North Lombok, namely around the Santong and Sambik Bangkol stations, while design rainfall with low values is in the western part of North Lombok, namely around the Tanjung and Gunungsari stations.
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 - - 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 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 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 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 Rohani Rohani Rostihanji rosyadi, gusman Saiful Anwar Salehuddin Salehuddin Salehuddin Salehuddin, Salehuddin Salehudin Salehudin Salehudin Salehudin Salehudin, Salehudin Salsabila, Fera Fitri 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 Zelvia Salsabila