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All Journal Jurnal Tematik International Journal of Built Environment and Scientific Research JAUR (Journal of Architecture and Urbanism Research) JTP - Jurnal Teknologi Pendidikan Community Development Journal: Jurnal Pengabdian Masyarakat Educational Building: Jurnal Pendidikan Teknik Bangunan dan Sipil International Journal of Hydrological and Environmental for Sustainability Jurnal Insinyur Profesional Carmin: Journal of Community Service Journal Serambi Engineering (JSE) Jurnal RAUT Jurnal Arsitektur ARCADE
Siti Zulfa Yuzni
Program Studi Arsitektur Fakultas Teknik Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Transportation Other

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Flood Inundation Mapping in Medan Maimun, Medan City Using HEC-RAS 2D and the Nakayasu Synthetic Unit Hydrograph Sarra Rahmadani; Dewi Fitria Marlisa; Rumilla Harahap; Siti Zulfa Yuzni; Nanda Savira Ersa; Cut Meuthia Rani; Al Fatahillah; Muh. Ilham Anggamulia; Yusuf Aulia Lubis; Anni Zahara Putri; Wisnu Prayogo
International Journal of Hydrological and Environmental for Sustainability Vol. 5 No. 2 (2026): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v5i2.1328

Abstract

Flood inundation mapping is a critical tool for urban flood risk assessment in tropical cities. This study investigates flood inundation extent in Medan Maimun Sub-district, Medan City, one of the most flood-prone areas in North Sumatra, Indonesia, where flood depths of approximately 3 meters were reported in February 2022 and December 2023. The study aims to: (1) determine design rainfall through frequency analysis and calculate design flood discharge for return periods of 2, 5, 10, 25, 50, and 100 years using the Nakayasu Synthetic Unit Hydrograph (SUH Nakayasu) method; (2) simulate flood routing using two-dimensional hydraulic modeling; and (3) map the resulting flood inundation extent for each return period. Rainfall frequency analysis used annual maximum rainfall data from two stations for the period 2014–2023, with the Log Pearson III method selected based on Chi-Square goodness-of-fit testing. Design flood discharges ranged from 383.403 m³/s at the 2-year return period to 555.149 m³/s at the 100-year return period. Flood routing and inundation mapping were performed using HEC-RAS version 5.0.7 integrated with RAS Mapper. Total inundation area increased from 110.982 ha at the 2-year return period to 126.581 ha at the 100-year return period, covering approximately 41.6% of the sub-district area at the 100-year return period. The model was not formally calibrated or validated against observed flood data; results should be interpreted as indicative of relative flood risk patterns rather than precise predictions. The flood inundation maps produced provide a useful scientific basis for flood mitigation planning in Medan city, Indonesia.
Community Empowerment Through the Development of Interactive Pop-Up Book Media as a Creative Learning Tool for Early Childhood Education Zhilli Izzadati Khairuni; Siti Zulfa Yuzni; Liana Atika; Wahyu Hutria; Mita Dwi Putri; Mirzal Yacub; Ahmad Zulfikar; Khairunnisak Khairunnisak; Wisnu Prayogo
Carmin: Journal of Community Service Vol. 6 No. 1 (2026)
Publisher : Borneo Research and Education Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59329/carmin.v6i1.311

Abstract

Community empowerment through creative education can strengthen teachers' capacity to independently develop contextual and accessible learning media, particularly for early childhood settings where engaging, hands-on resources are essential. This community service program aimed to develop and implement interactive pop-up books as creative learning tools while strengthening teachers' capacity to design, produce, and utilize visual learning media for early childhood education. The program was conducted at RA Nadhira Asy Syafa, Deli Serdang Regency, Indonesia, employing participatory, educational, and practical approaches. Teachers were actively involved throughout the process, including problem identification, theme selection, media design, production, classroom implementation, and evaluation, ensuring that the resulting media reflected both pedagogical needs and local context. Data were collected through observation, interviews, discussions, documentation, and a simple response questionnaire structured around four indicators: student engagement, early reading responses, creativity, and perceived support of pop-up books for learning. The findings revealed generally positive responses to the developed media. Specifically, 66.7% of respondents agreed or strongly agreed that the media supported student engagement and early reading responses, while 91.7% reported positive perceptions of children's creativity, and 91.7% agreed or strongly agreed that the pop-up books effectively supported learning activities. Nevertheless, variations in children's responses suggest that continued teacher guidance and adaptation to individual developmental needs remain necessary for optimal outcomes. Overall, the program demonstrates that collaboratively developed pop-up books can serve as accessible, low-cost, and context-sensitive learning media, while simultaneously strengthening teachers' practical capacity to independently design and produce creative educational materials suited to their classroom needs.
Co-Authors Ahmad Zulfikar Al Fatahillah Anita Yus Anni Zahara Putri Ardian Ariatsyah Barlian, Edo Cut Meuthia Rani Denny Meisandy Hutauruk Dewi Fitria Marlisa Dhani Wardhana Emhade Arman Erhaqim Ersa, Nanda Savira Faahakhododo Zai Finkanaia Wahab Harahap, Rumilla Harry Wibowo Hutajulu, Olnes Yosefa Hutapea, Timbul Parningotan Irin Caisarina Iswandi Idris Khairunnisak Khairunnisak Kharunnisak Kharunnisak Kinanti Wijaya, Kinanti Liana Atika Mendoza, Mhd Dominique Mhd Dominique Mendoza Mirza Mirza Mahmud Mita Dwi Putri Muh. Ilham Anggamulia Nahesson Hotmarama Panjaitan Pangaribuan, Wanapri Putra, Riansyah Rafika Hilmi Nasution Ramadani Rani, Cut Meuthia Riza Priandi Rosnelli Safwan Safwan Sari, Ruri Aditya Sarra Rahmadani Sinaga, Enny Keristiana Suhairiani Suhairiani SUTRISNO Syafiatun Siregar Wahyu Hutria Wanapri Pangaribuan Wardhana, Dhani Wicaksono, Madyaswanto Budi Wisnu Prayogo Wisnu Prayogo Yacub, Mirzal Yusuf Aulia Lubis Zai, Faahakhododo Zhilli Izzadati Khairuni Zulfikar Taqiuddin Zulfikar Taqiuddin Zulkifli Matondang