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All Journal Jurnal Riset Rekayasa Sipil Jurnal Abdi Insani Eduvest - Journal of Universal Studies Advance Sustainable Science, Engineering and Technology (ASSET)
Hadiani, Rr Rintis
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Social Sciences

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Assesing Flood Discharge Dynamics in Surakarta Through Land Cover Mapping with Sentinel-2A Ikafitri N, Fridya; Hadiani, Rr Rintis; Rahmat, Ali
Eduvest - Journal of Universal Studies Vol. 5 No. 5 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i5.51126

Abstract

Rapid urbanization in Surakarta, Central Java, has transformed land cover, reducing water absorption capacity and increasing flood frequency. While global studies link land cover changes to flood risks, localized analyses in Surakarta remain scarce. This study aims to (1) map land cover changes (2019–2023) using Sentinel-2A imagery, (2) quantify their impact on runoff coefficients and flood discharge, and (3) evaluate classification accuracy against government data. Land cover was classified via MLC (97% accuracy) and validated against BPS and Ministry of Environment and Forestry data. Hydrological modeling combined HSS Gama I and SCS methods in HEC-HMS, with rainfall data analyzed using Thiessen polygons and Gumbel distribution. Urbanization increased the runoff coefficient by 23.12%, raising flood discharge by 23.47% (Gajah Putih) and 23.33% (Pepe Hulu). Sentinel-2A outperformed government data (79% accuracy) in land cover mapping. The findings underscore the urgency of integrating high-accuracy remote sensing into urban planning. Future research should explore machine learning for real-time flood prediction and policy-driven mitigation strategies.
SOSIALISASI PENERAPAN STANDAR SNI 02-2406:1991 DAN SNI 03-3424:1994 DALAM PERENCANAAN DRAINASE PERKOTAAN WILAYAH KABUPATEN KARANGANYAR Kurnianingsih, Oktavia; Hadiani, Rr Rintis; Utomo, Budi; Rifai, Muji; Solichin , Solichin
Jurnal Abdi Insani Vol 11 No 3 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i3.1732

Abstract

Karanganyar Regency is one of the regencies located in Central Java. The Karanganyar Regency area is located in a mountainous area to a plain area. Urban Karanganyar Regency has experienced an increase in population, causing a reduction in absorption areas to be built up. Development in urban areas always increases as a support for facilities and infrastructure. Urban drainage is one of the important facilities and infrastructures in urban areas to regulate water disposal. Increased urbanization causes inundation and flooding. The problem of urban inundation causes many losses. Overcoming problems in Karanganyar District, the purpose of this service together with partners is to socialize the application of SNI 02-2406: 1991 and SNI 03-3424: 1994 in urban drainage planning as flood mitigation. The method used is through socialization of urban drainage planning material and direct question and answer discussions with participants and pretest and post tests related to drainage planning. Prior to the socialization, a survey of drainage channel conditions including dimensions, sedimentation and debris and drainage flow direction was conducted. The results obtained from this activity are the increased ability of participants in optimal urban drainage planning. This community service activity is able to provide an understanding of the importance of maintaining drainage channels from garbage and sedimentation. This community service activity is able to provide an understanding of the importance of maintaining drainage channels from garbage and sedimentation. The community and government can be directly involved in urban and sustainable drainage management.
Risk-Based Zoning for Urban Flood Mitigation Using HEC-HMS–HEC-RAS 2D Areas Kurnianingsih, Oktavia; Hadiani, Rr Rintis; Setiawan, Bambang; Sobriyah
Advance Sustainable Science Engineering and Technology Vol. 8 No. 1 (2026): November - January
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v8i1.2566

Abstract

This study aims to assess the potential for urban inundation and formulate flood mitigation strategies based on spatial analysis. A 2D modelling approach using HEC-HMS and HEC-RAS was applied to simulate the extent and depth of inundation in the urban area of Karanganyar, Indonesia. The models were validated with field observations using RMSE. Model validation confirmed the agreement between simulated and observed data. Validation was quantified using RMSE = 0.42 m across 15 checkpoints, with an average MAE of 0.31 m, and a coefficient of determination (R²) of 0.87. The 2D mesh resolution was set at 10 m, balancing computational efficiency with spatial accuracy. The maximum inundated area reached 3.8 million m² (±0.2 million m²), and the 95th percentile inundation depth was 4.7 m, concentrated in residential and agricultural zones. The results were used to delineate risk zones for prioritised flood mitigation planning. The simulation identified risk zones for prioritised flood mitigation planning, revealing inundated areas of up to 3.8 million m² with maximum depths around 4.7 m (±0.3 m), primarily affecting residential areas, agriculture, and public areas. Risk-based zoning was used to prioritise mitigation strategies, including improved drainage and the construction of infiltration ponds. The risk-based zoning approach demonstrated that implementing infiltration ponds and improved drainage in Priority Zone A could reduce flood exposure by approximately 28% under a simulated 20-year return period storm. These findings provide a measurable basis for adaptive flood mitigation strategies in urban areas.
ANALISIS POLA OPERASI WADUK SANGIRAN Maulana, Rifki; Hadiani, Rr Rintis; Ikhsan, Cahyono
Jurnal Riset Rekayasa Sipil Vol 4, No 1 (2020): September 2020
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1073.744 KB) | DOI: 10.20961/jrrs.v4i1.44636

Abstract

Dam is a reservoir that is needed to save water so that it can be used at the time needed both for irrigation, hydropower, and tourism. One of the Functional Dam in Indonesia is the Sangiran Dam. Sangiran Dam is located in Sumber Bening Village, Bringin District, Ngawi Regency, East Java Province. The Sangiran Dam is equipped with an overflow ogee crest type overflow building with side channels. Sangiran Dam gate type is slide gate with automatic operation using electric generator. The reservoir, which was operated starting in 2000, is designed to meet the needs of a plantation area of 1535 ha. However, in the operation that is needed in meeting the needs of irrigation air needs to be done in research the current operating patterns of the operating patterns that have been designed at the time of the reservoir design to compile an operating pattern that can meet water needs, at this time, looking for a relation between the elevation of reservoir water levels with an outflow discharge coming out of the reservoir. Based on the results of the analysis conducted on the current operating patterns are not in accordance with the pattern of initial design operations with an average deviation of 51.78% per year. This research is being carried out to analyze the optimal operating patterns of the Sangiran Dam and / or possible operating patterns in meeting water needs in the following years.
Co-Authors Ali Rahmat Bambang Setiawan Budi Utomo Cahyono Ikhsan Ikafitri N, Fridya Kurnianingsih, Oktavia Maulana, Rifki Muji Rifai, Muji Sobriyah Solichin , Solichin