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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Mahasiswa Jurusan Teknik Pengairan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Rekayasa Sipil dan Lingkungan Teras Jurnal Jurnal Penelitian Pendidikan IPA (JPPIPA) Civil and Environmental Science Journal (CIVENSE) AGROMIX JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Quantitative Economics and Management Studies Jurnal Pengabdian Masyarakat untuk Negeri (UN-PENMAS) Jurnal Ilmiah Kurva Teknik Jurnal Teknologi dan Rekayasa Sumber Daya Air
Ussy Andawayanti
Departemen Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya, Malang, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Transportation Other

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Musle Model Development in Laboratory Studies Using a Rainfall Simulator Aulia Zahira, Nabila; Andawayanti, Ussy; Suhartanto, Ery; Ramadhani, Rizki
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.02.5

Abstract

Various methods are available for sediment calculation, including the USLE and MUSLE methods, developed based on field observations. For the MUSLE method, it is important to determine the peak flow rate and surface runoff volume. This data is crucial for identifying areas vulnerable to erosion and implementing erosion prevention measures. However, in practice, calculations are often adjusted based on the available data and parameters. This research compares the calculated results of peak flow discharge and surface runoff volume between the Rational Method and the SCS Method with laboratory observations and the applicability of the USLE and MUSLE methods to laboratory sediment observations. Laboratory experiments use a rainfall simulator with intensities of 1 liter/minute, 1.5 liters/minute, and 2 liters/minute, and a maximum land slope of 5%. The research results show that calculating peak flow discharge and surface runoff volume using the Rational Method aligns more closely with laboratory conditions than the SCS Method. However, both methods are considered unsuitable for laboratory observations, as validation calculations and relative error results indicate a mismatch with model performance. Meanwhile, the USLE method is considered more suitable for sediment calculations than the MUSLE method, as the MUSLE method requires adjustment analysis to fit laboratory observations better.
Penentuan Zona Interface pada Daerah Intrusi Air Laut di Kawasan Pantai Lovina Luh Natasya Karini Putri; Siswoyo, Hari; Andawayanti, Ussy
Jurnal Ilmiah Kurva Teknik Vol. 14 No. 1 (2025): Jurnal Ilmiah Kurva Teknik
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jikt.v14i1.11086

Abstract

Intrusi air laut merupakan peristiwa masuknya air laut atau asin ke dalam air tanah. Salah satu kawasan yang terdampak peristiwa tersebut adalah Pantai Lovina. Hal ini disebabkan salah satunya oleh pengambilan air tanah yang berlebihan. Salah satu akibat atau dampak dari peristiwa ini ialah penurunan muka tanah, air sumur menjadi payau, bahkan dapat menimbulkan sink hole, untuk itu diperlukan penelitian mengenai perbatasan antara air tanah dana air asin untuk mengetahui sejauh mana wilayah yang terdampak intrusi air laut dan kedalaman batas antara air asin dan air tanah. Penelitian ini bertujuan untuk menentukan zona interface di kawasan Pantai Lovina dengan hukum Ghyben-Herzberg. Berdasarkan hasil survei pada 14 sumur di sepanjang garis Pantai Lovina dihasilkan zona interface berkedalaman sekitar 20 m – 166 m dan jarak terdekat daerah terintrusi air laut dari garis pantai adalah sekitar 49,4 m sedangkan yang terjauh sekitar 117,5 m dengan Lokasi rata-rata di daerah barat Pantai Lovina. Terdapat intrusi air laut pada garis Pantai Lovina terutama pada bagian barat.
Studi Kalibrasi Parameter NRECA Berbasis Algoritma Genetika untuk Pemodelan Curah Hujan-Debit di DAS Rejoso Putri, Angelina Satya; Suhartanto, Ery; Andawayanti, Ussy
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11091

Abstract

The Rejoso watershed in Pasuruan Regency is a critical water resource that supports various sectors, including agriculture and domestic needs. However, the imbalance between water demand and availability, exacerbated by insufficient discharge measurement infrastructure, necessitates alternative approaches to determine river discharge. This study utilizes the NRECA method combined with Genetic Algorithms (GA) to estimate river discharge by calibrating key hydrological parameters, Percent Sub-Surface (PSUB) and Ground Water Flow (GWF). Data from seven rainfall stations and AWLR Winongan were analyzed for the 2004-2023 period. Calibration of the NRECA model was carried out using the Nash-Sutcliffe Efficiency (NSE) and correlation coefficient (R), both achieving values close to 1, indicating an excellent model fit. The study highlights the applicability of GA for optimizing hydrological parameters and demonstrates the potential of the NRECA-GA method in improving discharge predictions in watersheds with limited data. These findings contribute to more effective and sustainable water resource management in the Rejoso watershed.
Penerapan Algoritma Genetik dalam Metode NRECA untuk Pengalihragaman Hujan menjadi Debit Model di DAS Rondoningo Maharani, Fiadita; Suhartanto, Ery; Andawayanti, Ussy
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 5 No. 2 (2025): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2025.005.02.096

Abstract

DAS Rondoningo, yang terletak di WS Pekalen-Sampean, Kab. Probolinggo, merupakan daerah aliran sungai dengan tingkat kekeringan yang relatif tinggi. Ketersediaan data debit sungai yang sering tidak lengkap akibat gangguan teknis pada peralatan AWLR jadi kendala dalam pengelolaan sumber daya air. Maka metode di studi ini memakai NRECA dengan Algoritma Genetik untuk melakukan alih ragam hujan jadi debit model untuk memperoleh data debit model yang menyerupai lapangan. Hasil analisis memperlihatkan komposisi terbaik ialah kalibrasi selama 19 tahun (2004-2022) dan validasi selama 1 tahun (2023) yang menghasilkan nilai NSE yakni 0,9999 dan R yakni 1 untuk kalibrasi, serta NSE yakni 0,9338 dan R yakni 0,9298 untuk validasi. Data debit model NRECA itu bisa dimanfaatkan untuk menganalisis debit andalan DAS Rondoningo. Analisis debit andalan memakai kurva durasi debit dengan rumus perhitungan probabilitas Weibull memperlihatkan perbandingan nilai debit andalan memakai data debit model NRECA dengan data debit AWLR pada periode tahunan dan bulanan tergolong hampir sama atau sangat baik. Abstract: The Rondoningo watershed, located in the Pekalen-Sampean WS, Probolinggo Regency, is a watershed with a relatively high level of drought. The availability of river discharge data that is often incomplete due to technical disturbances in AWLR equipment is an obstacle in water resources management. Therefore, this study used the NRECA method with a Genetic Algorithm to convert rainfall variability into model discharge to obtain model discharge data that resembles the field. The analysis showed that the best composition was calibration for 19 years (2004-2022) and validation for 1 year (2023) which resulted in an NSE value of 0.9999 and R of 1 for calibration, and NSE of 0.9338 and R of 0.9298 for validation. The NRECA model discharge data can be used to analyze the mainstay discharge of the Rondoningo watershed. The mainstay discharge analysis using the discharge duration curve with the Weibull probability calculation formula shows that the comparison of the mainstay discharge value using NRECA model discharge data with AWLR discharge data in the annual and monthly periods is almost the same or very good.
Pengalihragaman Hujan Menjadi Debit Model Menggunakan Metode NRECA dengan Algoritma Genetik di DAS Pancarglagas Ramadhania, Salsabila; Suhartanto, Ery; Andawayanti, Ussy
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 5 No. 2 (2025): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2025.005.02.091

Abstract

Air merupakan sumber daya penting bagi semua makhluk hidup. Potensi sumber daya air dalam suatu DAS dapat diukur melalui debit aliran sungai, yang memerlukan data debit untuk pengelolaan yang tepat. Kekeringan dan krisis air bersih yang terjadi di DAS Pancarglagas pada tahun 2023 dapat menyebabkan terjadinya perubahan potensi sumber daya air, sehingga diperlukan data debit untuk mengetahui perubahan yang terjadi. Tantangan yang dihadapi di lapangan adalah kekosongan data debit akibat alat yang rusak atau tidak ada pada DAS. Untuk itu, penelitian ini menggunakan pemodelan untuk mengalihragamkan data curah hujan menjadi debit, dengan menggunakan metode NRECA dikombinasikan algoritma genetuk untuk mengoptimasikan parameter PSUB dan GWF. Penelitian dilakukan dengan menggunakan data tahun 2004-2022. Hasil analisis kalibrasi terbaik terdapat pada periode 17 tahun dengan NSE 0,9941 dan R 0,9976. Hasil analisis validasi terbaik terdapat pada periode 2 tahun dengan NSE 0,5027 dan R 0,7294. Hasil analisis debit andalan Q80 sebesar 0,52 m3/det (irigasi), Q90 sebesar 0,38 m3/det (air baku & industri), Q95 sebesar 0,24 m3/det (PLTA), dimana perbandingan debit andalan menggunakan data debit model NRECA dan debit pengamatan cukup sama atau baik.
Analisis Laju Erosi, Sedimen, Dan Perencanaan Bangunan Pengendali Sedimen DAS Banjir Kanal Timur Kota Semarang Adelia Riska Pratama; Andawayanti, Ussy; Suhartanto, Ery
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 5 No. 2 (2025): Jurnal Teknologi dan Rekayasa Sumber Daya Air (JTRESDA)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtresda.2025.005.02.097

Abstract

DAS Banjir Kanal Timur di Kota Semarang mengalami permasalahan serius akibat erosi dan sedimen yang tinggi, yang disebabkan oleh perubahan tata guna lahan. Penelitian ini menganalisis laju erosi dan sedimen menggunakan pemodelan ArcSWAT berbasis Sistem Informasi Geografis (SIG). Data klimatologi, curah hujan, jenis tanah, kemiringan lereng, dan penggunaan lahan digunakan untuk simulasi model, yang kemudian dikalibrasi agar hasilnya lebih akurat. Berdasarkan penelitian, rata-rata laju erosi di DAS ini selama 2021–2023 adalah 42,22 ton/ha/tahun, dengan tingkat bahaya erosi didominasi oleh kategori sedang (42%) dan tinggi (43%). Untuk mengatasi sedimen, dirancang dua check dam dengan volume tampungan masing-masing 1.856 m³ dan 7.605 m³ serta usia guna 1,4 tahun dan 3,7 tahun. Estimasi biaya pembangunan check dam ini sebesar Rp 756.085.248 dan Rp 1.554.942.504. Implementasi struktur ini diharapkan dapat mengurangi dampak negatif erosi dan meningkatkan kapasitas sungai dalam mengelola aliran air secara berkelanjutan.
Land Use Change Impact on Erosion and Sedimentation in Kreo Sub-Watershed, Central Java Napitupulu, Ruth Erditha; Andawayanti, Ussy; Bisri, Mohammad; Putra, Rizky Almarendra Wirawan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.820-836

Abstract

Ministry of Forestry has designated Kreo Sub-watershed, part of Garang Watershed, a critical area due to high erosion rates contributing to flooding in Semarang. Rapid land use changes accelerate environmental degradation, increasing erosion and sedimentation risks. This study measures erosion and sedimentation rates in Kreo Sub-watershed using SWAT (Soil and Water Assessment Tool), determines Erosion Hazard Index, and proposes erosion control solutions based on Land Rehabilitation and Soil Conservation Analysis (ARLKT) with vegetative conservation. ARLKT approach includes simulating new land use scenarios to assess their impact on erosion reduction. To ensure SWAT modelling accurately represents field conditions and not overestimate, allowing conservation recommendations based on ARLKT applied appropriately, a field-based sedimentation analysis also conducted. The study utilizes rainfall, soil type, slope, and land use data in 2019 and 2024 from satellite imagery and validated using a confusion matrix. Results indicate a shift in Erosion Hazard Index from predominantly ‘Moderate’ in 2019 to ‘High’ in 2024, underscoring urgent need for sustainable watershed management. By integrating remote sensing, field validation, and hydrological modeling, this study offers a precise, data-driven approach to erosion control. The findings serve critical reference for policymakers in developing effective conservation strategies to enhance watershed resilience.
Model Prototipe Alih Ragam Hujan Ke Debit Menggunakan Data Satelit TRMM Dan Jaringan Syaraf Tiruan Suhartanto, Ery; Andawayanti, Ussy; Lufira, Rahmah Dara; Darmawan, Azhar Adi; Putri, Angelina Satya
Teras Jurnal : Jurnal Teknik Sipil Vol. 15 No. 1 (2025): Volume 15 Nomor 1, Maret 2025
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v15i1.1219

Abstract

Abstrak Ketersediaan dan akurasi data hujan maupun debit menjadi masalah umum di setiap DAS termasuk Sub DAS Lesti. Penelitian ini fokus pada kalibrasi dan validasi data satelit TRMM terhadap pos hujan lapangan. selain itu, bertujuan untuk mengembangkan model prototipe alih ragam hujan ke debit menggunakan JST. Pemodelan ini memanfaatkan data masukan hidrologi, termasuk data satelit TRMM, hari hujan, evaporasi, dan penggunaan lahan, serta data target debit dari Sub DAS Lesti. Hasil kalibrasi dan validasi data satelit TRMM menghasilkan nilai NSE sebesar 0,97 (sangat baik) dan koefisien korelasi (R) sebesar 1,00 (sangat kuat). Selain itu, hasil pemodelan diperoleh kalibrasi terbaik model prototipe yang mengkonversi data hujan menjadi debit menggunakan JST dengan fungsi transfer logsig, menghasilkan nilai koefisien korelasi R = 0,98897 (sangat kuat) dengan skema arsitektur jaringan 8-2-10-1 (terdiri dari delapan lapisan masukan, dua lapisan tersembunyi, sepuluh neuron, satu lapisan keluaran) pada 3000 epochs. Kata kunci: Hujan, Debit, TRMM, Jaringan Syaraf Tiruan  Abstract The availability and accuracy of rain and discharge data is a common problem in every watershed, including the Lesti sub-watershed. This research focuses on the calibration and validation of TRMM satellite data on field rain posts. Apart from that, it aims to develop a prototype model for transferring rainfall variations to discharge using ANN. This modeling utilizes hydrological input data, including TRMM satellite data, rainy days, evaporation, and land use, as well as discharge target data from the Lesti Sub-watershed. The results of calibration and validation of TRMM satellite data produced an NSE value of 0.97 (very good) and a correlation coefficient (R) of 1.00 (very strong). In addition, the modeling results obtained the best calibration of the prototype model which converts rain data into discharge using ANN with the logsig transfer function, producing a correlation coefficient value of R = 0.98897 (very strong) with an 8-2-10-1 network architecture scheme (consisting of eight input layers, two hidden layers, ten neurons, one output layer) at 3000 epochs. Keywords:  Rainfall, Discharge, TRMM, Artificial Neural Network
Interaction between Ground Water and Surface Water in Porong River, Sidoarjo Haromain, Safira Anisah; Yuliani, Emma; Andawayanti, Ussy; Imai, Tsuyoshi; Aliyah, Firda Samaniyatul
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.3

Abstract

The Lapindo mud phenomenon has been going on for 17 years, causing damage to the land and subsurface geological structures which raises concerns about reducing groundwater quality. This research aims to determine groundwater flow patterns based on surface contours around the Porong River which were analyzed using Surfer 13 software, and understand the relationship between groundwater and surface water through physical properties with correlation coefficients using Rstudio, as well as to identify the chemical characteristics of surface water and groundwater using the Trilinear Piper Diagram. Based on the research results, the groundwater flow pattern moves from northeast to southwest, and there is interaction between the two as indicated by the physical properties of the water. The correlation coefficient value ranges from 0.615 to 0.997, meaning that the relationship between groundwater and surface water is moderate to strong. Both groundwater and surface water have the same chemical type, namely mostly containing alkaline earth and weak acids. In addition, this research reveals the exploration of the impact of heavy metal parameters, namely Copper (Cu), from the Lapindo mud in the Porong River and residents' dug wells. In conclusion, this research shows the interaction between groundwater and surface water in the Porong River.
Improving Drinking Water Management Efficiency in Batu City Water Utility with System Dynamics Modelling Approach Arief, Amalia Mardhatillah; Siswoyo, Hari; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.7

Abstract

The increasing demand for drinking water due to population growth presents significant challenges for the Among Tirto Water Utility (ATWU) in Batu City, East Java, Indonesia. In 2022, ATWU faced low service coverage (36%) and high water loss (38%), exceeding the 20% threshold. Some previous research discusses the System Dynamics (SD) used to overcome the water shortage problem. In this study, the SD is used to overcome excess water. Therefore, This study aims to enhance efficiency by adding piping networks and controlling water losses. This research uses an SD approach method that includes simulations from 2017 to 2042 or for 25 years using the Powersim application. Methodologies include analyzing drinking water availability, constructing causal loop diagrams (CLD) and stock and flow diagrams (SFD), verification, validation, and designing policy scenarios. The required data are the number of customers, service coverage, actual production capacity, water loss, total community water consumption, business revenue, business expenses, and other data related to water management in ATWU. The study identifies Scenario Two as the most effective in addressing location-specific issues. If water loss control is implemented to reduce loss rates to 20%, ATWU could expand service coverage by 58.44%, increasing water availability and a projected profit of 3.6 billion rupiahs by 2042. The results of this study can improve operational efficiency and facilitate better decision-making for the Water Utility of Batu City.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Marzuqi, Achmad Adelia Riska Pratama Agasi, Angga alif, chalid jul Aliyah, Firda Samaniyatul Andre Primantyo Hendrawan Andriantari, Nur Fadhlillah Anggara WWS Anis, Mizun Bariroh Arief, Amalia Mardhatillah Arif Rahmad Darmawan Aulia Zahira, Nabila Azhar Adi Darmawan Azzahra, Arrum Bagaskoro, Qistan Maraghi Beselly Putra, Sebrian Mirdeklis Cahyani Ainin Dewanti, Wahyuning Dian Sisinggih Dini Rosvita Tri A. Donny Harisuseno Edison Hukom Elang Timur M. Patih Ragananda Emma Yuliani Endang Purwati RN Erryanto, Sandi Ery Suhartanto Ery Suhartanto evanur Hendrasari, evanur Evi Nur Cahya Fitriani, Deshinta Fitriyasari, Ammy Furqani, Fahma Handoko, Shubhananda Aulia hari siswoyo Hariyanto, Andri Kwin Haromain, Safira Anisah Harya Muldianto Hidayah, Mita Nur Hidayat, Mustafa Mukti I Gusti Ngurah Antariza I Wayan Yasa, I Wayan Imani, Reyhan Satya Irenne Ismayanti Romadona Kusumabrata, Luffi Lailatul Mukarromah, Lailatul Laksono Trisnantoro Lenny Febriana Ideawati, Lenny Febriana Lily Montarcih Limantara Linda Prasetyorini Luh Natasya Karini Putri Lukman Hakim M. Amar Sajali M. Bisri M. Janu Ismoyo Maharani, Fiadita Maharani, Yasinta Surya Moch Rizky Moh. Sholichin Mohammad Bisri Mohammad Bisri Muhammad Adhitya Aldi nama, arnoldus Napitupulu, Ruth Erditha Nashrullah, Imam Nurrohma Amalia, Nadhea Paksi, R. Susenatama Jatayu Pancaputri, Widyaiswara Parmawati, Rita Pitojo Tri Juwono Pradany, Ahmad Dwiki Pramesi, Gading Komala Pratama, Rizki Ramadani Pratama, Rizki Ramadhani Pratiwi, Mitha Aprilia Pulasari, Luh Ayu Putri Wedayanti Putra, Farhan Akbar Darma Putra, Rizky Almarendra Wirawan Putri, Angelina Satya Qomariyatus Sholihah Qomarul Huda, Qomarul Rachmanto, Fariz Bayu Rahmah Dara Lufira Ramadhani, Tresna Asih Utami Ramadhania, Salsabila ramdhani, fitroh Resmani, Eva Respatiningrum, Amalia Wara Rispiningtati Rispiningtati Rita Parmawati Rizki Ramadhani Runi Asmaranto Santi Sari Sapto Dwi Hari Oktavianto Saputra, Candra Tri Sariyanti, Ni Komang Yuli Satria, Bagus Harjo Secilia, Melinda Priskila Sekar Padma Lestari Shabrina, Salsabila Sholichin, M. Sholichin, Moch. Sofriansyah, Rafi Satria Sri Wahyuni Suhardjono Suhardjono Suhartanto , Ery Sumiadi Sumiadi, Sumiadi Suwanto Marsudi Tri Budi Prayogo, Tri Budi Tsuyoshi Imai, Tsuyoshi Tuhepaly, Firman Syarif Tyas Daru, Tyas Utami, Rizki Tri Very Dermawan Widandi Soetopo Yudianto, Engelbertus Fajar Zalma, Nasywah Miftahul