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Studi Optimasi Alokasi Air Irigasi Menggunakan Program Dinamik Pada Daerah Irigasi Cau Kabupaten Madiun Ireldi Pratama, Faris; Montarcih Limantara, Lily; Sholichin, Moh.
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 6 No. 1 (2026): 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.2026.6.1.11

Abstract

Daerah Irigasi Cau memiliki permasalahan pada kondisi eksistingnya yaitu kondisi defisit air dimana jumlah kebutuhan air lebih banyak dibandingkan dengan ketersediaannya yang terjadi pada musim hujan, Musim Kemarau I dan II. Sehingga, pengoptimasian alokasi air menggunakan program dinamik deterministik perlu dilakukan. Tujuan dari optimasi ini adalah untuk dapat memaksimalkan keuntungan hasil tani dengan cara membagi daerah irigasi menjadi beberapa stage agar nantinya air akan dilokasikan ke setiap stage sesuai kebutuhan agar mendapatkan keuntungan maksimal. Fungsi kendala dalam optimasi adalah debit yang tersedia dan luas lahan. Fungsi tujuan optimasi adlaah keuntungan maksimal hasil tani. Hasil dari optimasi dengan program dinamik didapatkan peningkatan luas lahan sebesar 12,33% di musim tanam I, 8,42% di musim tanam II dan 38,90% di musim tanam III dengan keuntungan untuk setiap musim tanam adalah Rp. 13.296.184.959,00, Rp. 9.536.165.030,00, dan Rp. 6.337.986.652,00.
A Model for the Reduction of Flood Peak Discharge (ΔQp) Due to the Retarding Basin Yuwono, Hari; Limantara, Lily M.; Sholichin, Moh.; Siswoyo, Hari
Civil Engineering Journal Vol. 11 No. 12 (2025): December
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-12-012

Abstract

This research aims to develop a model for flood peak discharge reduction (ΔQp) through the placement of retarding basins within a watershed system, represented by the area ratio of the controlled watershed (RAk) and the maximum storage capacity of the retarding basin (Vk). The area ratio of the controlled watershed (RAk) is defined as the ratio between the catchment area of the retarding basin and the total watershed area (Ak/A). The methodology involves simulating various retarding basin placements (RAk) and different maximum storage capacities (Vk) for several flood return periods (QT). This study was conducted in the urban agglomeration area of Wonosari, Gunungkidul Regency, Special Region of Yogyakarta, Indonesia. The placement and utilization of retarding basins result in varying levels of flood peak discharge reduction (ΔQp) at the downstream control point (Taman Pancuran), depending on the maximum storage capacity of the retarding basin (Vk) and its placement within the watershed (RAk). The resulting empirical equations for flood peak discharge reduction (ΔQp) using the retarding basin method are as follows: ΔQp = 0.105654 − 0.014593 Vk − 0.029251 RAk + 0.011089 QT for Vk values in the range (V1–V4) = 36.4–208.8 × 10³ m³, and ΔQp = 1.374989 − 0.003702 Vk − 0.338381 RAk + 0.004773 QT for Vk values in the range (V4–V200) = 136.2–7039.1 × 10³ m³. An observed anomaly was identified, where ΔQp became positive at small values of Vk and RAk, indicating an increase in peak discharge (Qp).
Assessment of Baseflow Characteristics and Environmental Flow Allocation in the Welo Sub-Watershed, Central Java Wahlul Sodikin; Pitojo Tri Juwono; Mohammad Sholichin
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.11049

Abstract

This study assesses baseflow characteristics and environmental flow (EF) requirements in the Welo Sub-Watershed, Central Java, Indonesia—a region increasingly affected by land use change and climate variability. Using 30 years of daily streamflow data (1994–2023), baseflow was separated using the Fixed Interval Method with analysis conducted in Excel and the Hydrologic Engineering Center’s Hydrograph Analysis (HEC-HMS). EF was estimated using both the Tennant Method and Flow Duration Curve (FDC) analysis. Results indicate that average dry-season baseflow is 0.79 m³/s, while the reliable flow (Q80) averages 1.02 m³/s. EF estimates are 0.43 m³/s (Tennant) and 0.54 m³/s (FDC). Under normal hydrological conditions, baseflow exceeds EF thresholds. However, peak irrigation demand reaching 1.30 m³/s surpasses both baseflow and Q80 during dry periods. This suggests periods of ecological stress and potential conflict among water users. These findings underscore the need for integrating EF targets into local water resource planning to safeguard ecosystem function and ensure sustainable water allocation.
Studi Pola Operasi Normal Waduk Mamak di Kabupaten Sumbawa Provinsi Nusa Tenggara Barat Kurnianto, Noval Irfan; Wahyuni, Sri; Sholichin, Moh.
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 1 No. 1 (2021): 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.2021.001.01.07

Abstract

The reservoir operation of Mamak reservoir in Sumbawa Regency Province of West Nusa Tenggara with trial and error method and it’s also not equipped with Rule Curve for Reservoir Operation so It’s faced with limited water availability in water releasing for dry season.The purpose of this study was to analyze about potential inflow and the irrigation water requirement based on planting pattern scenario. From the analysis that has been done is expected to provide an overview about the rule curve of normal operation. By  ± 81,87 million m3 of potential inflow in wet season and ± 41,14 million  m3 in dry season, the lowest irrigation water requirement was found on MT – I December-1, in wet season need to apply K factor = 0,70 for MT-I and K factor = 0,60 for MT-II to reduce that number of irrigation water requirement by ±38,73 million m3.In analyzing irrigation water requirement, It also planned with three period of planting pattern scenario so the amount of irrigation water requirement equals to 61,23 million m3 in wet season, and in dry season need to apply K factor = 0,70 for MT-I and K factor = 0,60 for MT-II. Operator can set water level on normal operation area based on the rule curve of normal operation.
Aplikasi Geolistrik Resistivitas dengan Konfigurasi Schlumberger Untuk Identifikasi Air Laut di Kecamatan Jayapura Utara Kota Jayapura Simanjuntak, Yogi Ricardo P; Prayogo, Tri Budi; Sholichin, Mohammad
Jurnal Teknologi dan Rekayasa Sumber Daya Air Vol. 1 No. 1 (2021): 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.2021.001.01.23

Abstract

Dalam beberapa tahun belakangan telah terjadi eksodus penambahan penduduk yang sangat besar di belahan bumi, yang menyebabkan pengambilan air dalam tanah terus menanjak sangat pesat. Faktor inilah yang membuat dampak sangat jelek terhadap kuantitas dan kualitas air bawah tanah, yaitu turunnya permukaan air bawah tanah, serta fluktuasi yang sangat besar bahkan penurunan kualitas air bawah tanah, sampai terjadinya akibat dari intrusi air laut pada bawah tanah di wilayah pesisir. Dalam rangka penilitian ini, kami memakai metode geolistrik guna mengetahui pengaruh dari penurunan pada muka air bawah tanah terhadap intrusi air laut di salah satu kecamatan di Kota Jayapura yaitu Kecamatan Jayapura Utara. Jayapura Utara Metode dari  geolistrik kami gunakan untuk melihat pengaruh pada penurunan muka air bawah tanah oleh dampak dari intrusi air laut di Kecamatan tersebut.
Co-Authors A.A. Ketut Agung Cahyawan W Agi Putra Kharisma, Agi Putra Amrul, Muhammad Alfarisy Andono, Rizky Harsya Andre Primantyo H., Andre Primantyo Arief Andy Soebroto Arif Rahmad Darmawan AS Dwi Saptati Nur Hidayati, AS Dwi Saptati Nur Ayisya Cindy Harifa Bambang Ismuyanto Cahyani, Sylvia Regita Dedy Febrianto Nadjamuddin, Dedy Febrianto Dian Sisinggih Diana, Eka Wahyu Donny Harisuseno Emma Yuliani Endang Purwati RN Evi Nur Cahya Fahmi Zamroni, Fahmi Felani, Gita Fitri Ferina, Marisa Ayu hari siswoyo Harri Pranowo Indrajayatama, Ridho Satria Ireldi Pratama, Faris Ismuyanto , Bambang Kurnianto, Noval Irfan Kurniawan, Dita Cahya Leo Arbi Wibowo Lily Montarcih Limantara Limantara, Lily M. M. Bisri Majid, Haidar Naufal Mandasari, Fetri Maulana, Firhand Mohammad Rahdiansyah Batubara, Mohammad Rahdiansyah Montarcih Limantara, Lily Muhtasar, Iqbal Maulana Nathania, Nadya Ayu Nugraha, Aldi Nugroho, Faishal Dary Nurul Hidayat Palupi, Gema Anggun Pane, Yasmin Pebriani Sitorus Pitojo Tri Juwono Putri, Dea Anggara Putu Ratih Wijayanti Qadri S, Wahyuddin Rahadjeng, Aira Azzahra Rahayu, Gayatri Putri Rares, Johan Peter Rini Wahyu Sayekti Rispiningtati Rispiningtati Riyanto Haribowo Rohmaningsih, Elin Runi Asmaranto Saptati N. H., A. S. Dwi Sari, Chudiana Mega Simanjuntak, Yogi Ricardo P Sinantrya, Mutiara Sri Wahyuni Susilo, H. Suwanto Marsudi Tri Budi Prayogo, Tri Budi Ussy Andawayanti Very Dermawan Wahlul Sodikin Wahyu Nafier A. Wayan Firdaus Mahmudy Widandi Soetopo yuriski, ryan isra' Yuwono, Hari