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All Journal Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia Control Systems and Optimization Letters
Khoirudin Wisnu Mahendra
Universitas Ahmad Dahlan
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Public Health Social Sciences

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PENAMBAHAN DEBIT AIR TANPA LISTRIK UNTUK WARGA DESA NGARGOSARI KECAMATAN SAMIGALUH KABUPATEN KULONPROGO: OPTIMALISASI WADUK Haris Imam Karim Fathurrahman; Alfian Ma'arif; Arsyad Cahya Subrata; Suko Ferbriyanto; Khoirudin Wisnu Mahendra
Kumawula: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2022): Kumawula: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kumawula.v5i2.37206

Abstract

Manusia dan air merupakan komponen yang tidak terpisahkan. Kebutuhan manusia terhadap air telah menjadi kebutuhan primer yang tidak tergantikan. Akan tetapi, penyediaan air untuk kebutuhan primer memiliki berbagai macam tantangan. Salah satu tantangannya adalah penyaluran dan manajemen air. Desa Ngargosari memiiki tantangan serupa berkaitan dengan ketersediaan air untuk kebutuhan warga. Desa Ngargosari memiliki mata air sendiri yang disebut Kedung Cangkring tetapi belum dimanfaatkan sebagai sumber mata air warga. Pengabdian masyarakat ini bertujuan untuk meningkatkan penambahan debit air untuk kebutuhan warga Desa Ngargosari. Tahapan metode dalam pengabdian ini menggunakan pendekatan ADDIE (Analyze, Design, Development, Implement, Evaluate). Hasil akhir yang diperoleh dalam pengabdian ini adalah pemasangan pompa hydram untuk menyalurkan air dari sumber mata air Kedung Cangkring ke bak penampungan warga. Dampak penyaluran air yang dihasilkan melalui pengoptimalan pembukaan katup udara mencapai 10 liter per menit
Training on installing solar water pump for resident of singkar 1 wareng wonosari gunungkidul yogyakarta indonesia Alfian Ma’arif; Khoirudin Wisnu Mahendra; Suko Ferbriyanto; Alfan Habibillah; Ahmad Nurimam
Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia Vol. 1 No. 1 (2021)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/jppmi.v1i1.5

Abstract

Singkar 1 Hamlet, Wareng Village, Wonosari, Gunungkidul, Yogyakarta is a mountainous area that often experiences a shortage of clean water and does not yet have the technology to empower efficient irrigation. During the dry season, residents have to buy water from the Village Drinking Water Manager for daily needs and other needs such as watering plants. Geographical conditions that depend on seasonal changes are an obstacle in the availability of water irrigation facilities, but Dusun Singkar 1 Wareng has the potential to be developed because it has a large area of land and there are wells that have not been utilized for plant cultivation. The irrigation system works by draining water from residents' wells using a solar-powered DC water pump to irrigate land that has not been used optimally by residents. This system is able to increase the independence of residents in cultivating plants because residents can use water without having to buy it from the local village drinking water manager.
Pattern Analysis on Multi-Sensor Networks: Short-Term Forecasting at Parangtritis Coastal, Yogyakarta, Indonesia Haris Imam Karim Fathurrahman; Choirul Fajri; Chin Li-Yi; Khoirudin Wisnu Mahendra
Control Systems and Optimization Letters Vol 4, No 2 (2026)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v4i2.333

Abstract

Reliable microclimatic records are a prerequisite for evidence-based agricultural planning, yet high-resolution ground-truth datasets for tropical coastal environments remain scarce in the Indonesian literature. This study analyzes six months (December 2025 – May 2026) of 10-minute interval observations across 18 meteorological variables from the Parangtritis Automated Weather Station (AWS), Bantul Regency, Yogyakarta, Indonesia. Rainfall was reconstructed via a differential method from the cumulative station counter, yielding a period total of 1748.4 mm over 180 days. Of these, 112 days (66.1%) recorded measurable precipitation, punctuated by seven dry-spell episodes; the longest extended 12 consecutive days (5–16 May 2026). Schmidt-Ferguson classification returned Q = 20%, placing the site in Climate Type B (Wet/Basah). Reference evapotranspiration (ET₀, Hargreaves–Samani) averaged 10.20 mm/day (total: 1796.0 mm), and a PDSI proxy indicated extreme drought conditions by the close of the observation period (PDSI = −7.45), a deficit attributable primarily to persistently high ET₀ demand rather than rainfall deficiency per se. Cross-correlation analysis identified relative humidity as the dominant concurrent temperature predictor (lag 0; r = −0.676). An XGBoost model achieved short-term temperature forecasting accuracy of MAE = 0.56°C and RMSE = 0.71°C (R² = −1.419, reflecting the site's narrow diurnal thermal variance rather than model failure). Prophet projected sharply reduced rainfall for June–August 2026 (0.25–4.77 mm), which the generic staple-crop suitability framework scores as Not Recommended, reflecting unsuitability for rainfed rice, yet these drier conditions are agronomically favourable for shallot in coastal Yogyakarta.
Co-Authors Ahmad Nurimam Alfan Habibillah Alfian Ma’arif Chin Li-Yi Choirul Fajri Fathurrahman, Haris Imam Karim Subrata, Arsyad Cahya Suko Ferbriyanto