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Doddi Yudianto
Department Of Civil Engineering, Faculty Of Engineering, Parahyangan Catholic University
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Mathematics Social Sciences Transportation

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The Evaluation of Water Loss in The Western North Tarum Irrigation Channel Tandiono, Felix; Yudianto, Doddi; Li, Ren; Ginting, Bobby Minola; Wicaksono, Albert; Fitriana, Finna; Fiona, Megan
JURNAL TEKNIK HIDRAULIK Vol 15, No 1 (2024): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v15i1.790

Abstract

The Western North Tarum Irrigation channel plays a crucial role in supplying water to irrigated agricultural areas. However, it encounters challenges in ensuring adequate water delivery to all channel segments. This research assesses water loss during the distribution process in the Western North Tarum Irrigation channel, focusing on the evaluation of channel capacity and the impact of suboptimal water management on water loss. The study employs the HEC-RAS model, a hydraulic system analysis tool, to evaluate the channel’s capacity and simulates its behavior under various discharge conditions. The evaluation reveals that two channel segments, B.TUB 13 and B.TUB 25, have exceeded their capacity limits, resulting in overflow. Sedimentation downstream, particularly in these segments, exacerbates the issue by altering the channel slope and impeding water flow. This research identifies poor water distribution management as a significant factor contributing to water loss in the irrigation channel. Inadequate scheduling and the absence of proper water measurement tools result in instances of overwatering or underwatering in some areas. The lack of monitoring and control in the irrigation system hampers the detection of uncontrolled flow in the channels, leading to substantial water loss and inefficient water use. This research underscores the importance of evaluating and maintaining irrigation channel capacity to prevent overflow and water loss. Furthermore, it emphasizes the significance of effective water management to achieve more efficient water distribution and irrigation. Addressing these challenges is crucial for ensuring the long-term sustainability of irrigated agriculture in the Western North Tarum Irrigation area.Keywords: HEC-RAS, Irrigation Channel, Water Distribution, Water Loss, Western North Tarum
Aplikasi Teknologi Bakteri Dalam Pekerjaan Restorasi Sungai Xuxi, Kota Wuxi, China Yudianto, Doddi; Yuebo, Xie
JURNAL TEKNIK HIDRAULIK Vol 1, No 1 (2010): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v1i1.225

Abstract

Considering previous successful applications of biological treatment in several restoration works in China, this study is aimed to describe the complete processes and results derived from the application of bacterial technology in restoring urban river. Here the Xuxi River in Wuxi City was selected as an example of case study. Based on the results obtained, it is found that this bacterial technology is able to provide broader views of river restoration work for urban area. Besides it results better water quality, the water is now clearer and contains aquatic life. Although a considerable increase of concentration of total phosphorus, total nitrogen, and ammonium nitrogen may have enhanced to Algae problem during the treatment, but the final results show good achievement. Detail laboratory tests and mathematical model development are necessary to optimize the implementation.Keywords:   River restoration, biological treatment, bacterial technology, urban stream, Xuxi River.
STUDI PENGELOLAAN AIR HUJAN DALAM RANGKA PENGEMBANGAN TAMAN KONSERVASI DI KOTA SAWAHLUNTO, SUMATERA BARAT Kent, Steven; Yudianto, Doddi; Fitriana, Finna
JURNAL SUMBER DAYA AIR Vol 18, No 2 (2022)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v18i2.820

Abstract

Sawahlunto Conservation Park is an area developed for plant protection and tourism activities. The Sawahlunto city was initially built to support coal mining activities, so the conservation park has several basins that can be used as flood parking ponds. These basins can be used to meet the needs of watering plants. The study is used to examine the water availability and flood analysis at the area to be built.  The conservation park is divided into three areas based on the four reservoirs location: the Kandih Park area, the northern and the southern part of the parking area. In this study, hydrologic and hydraulic analyses will be conducted. In the hydrological analysis, simulations of reservoir capacity are carried out to describe the amount of water that can be used every month. In the hydraulic analysis, SWMM program is used to model rainwater as surface runoff, estimate the planned channel dimensions, and reservoir flood volume. The reservoir simulation results show that the water needs for watering plants can be fully met. However, the available storage ponds have a much smaller volume than the rainfall volume, so the pond will run off throughout the year. The SWMM modeling results show that the channel dimensions from 0.2 m x 0.2 m to 0.5 m x 0.5 m, can drain flood discharge with a two-year return period, with a freeboard five-year return period. This study can be used as a guideline for developing conservation areas in reusing the potential of ex-mining land. Keywords: Conservation Park of Sawahlunto, Drainage Design, Rainfall Management, Reservoir Simulation, SWMM
PREDIKSI DAMPAK PERUBAHAN TATAGUNA LAHAN TERHADAP DEBIT LIMPASAN, STUDI KASUS: GEREJA RANCASARI Wijaya, Obaja Triputera; Yudianto, Doddi; Fitriana, Finna; Sanjaya, Stephen
JURNAL SUMBER DAYA AIR Vol 20, No 2 (2024)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v20i2.900

Abstract

Flooding is one of the most frequent natural disasters in Indonesia. Based on data, as of 2024, there have been 137 cases of flooding incidents. One of the causes of flooding, particularly in urban areas, is due to land use change. This study examines the impact of land use changes on runoff discharge in a Church area in the Bandung City. Additionally, this study investigates the effect of the development of this area on flood water levels in the Riung channel, which serves as an outlet channel. In this study, modeling is conducted using the SWMM model. The study utilizes data from the BMKG Bandung and GPM satellite rainfall data from 2001 to 2022 for rainfall analysis. The results indicate that in the study area, the duration of extreme rainfall producing maximum discharge is rainfall lasting for 7 hours. As a result of the church development, runoff discharge increases by 26.3 – 34.4% across various return periods. For time to peak, there is no significant change in conditions before and after the area is developed. This is due to area is relatively small, resulting in a relatively shorter concentration time. Based on the hydraulic analysis, the Riung channel is still able to accommodate additional runoff generated due to development, leaving a freeboard height of 4.5 cm for a 10-year return period. However, based on observations, special attention is needed regarding the issue of sedimentation and trash, which often causes backflow in several segments of the trenches.Keywords:runoff, land use change, urban drainage, SWMM, Bandung
Water Quality Modelling to Predict BOD And TP Loads of Duriangkang Dam Wimordi, Calvin; Yudianto, Doddi; Yiqing, Guan
CSID Journal of Infrastructure Development Vol. 3, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Water quality modeling is highly needed to predict and to identify the water quality alteration and distribution along the water body. Besides that, water quality modeling also can be used to predict the pollutant load if there is no data recording. The water quality analysis simulation program (WASP), will be used in this study to forecast domestic load, in particular BOD and TP loads in Duriangkang Dam. Initially, the estimated load is obtained based on the previous study that being extended by using a linear regression line. After that, the estimated load is calibrated according to the results of the water test. The WASP model is simulated for a period of 3 years from 1 January 2016 to 31 December 2018 and is divided into 2 processes, namely calibration and verification process. The calibration process is carried out in the first two years, followed by the verification process for the remainder of the year. The calibration and verification process are measured by objective functions, namely RMSE and the percentage difference. According to the simulation results, the objective functions provide satisfying findings, which means that the predicted BOD and TP loads for Duriangkang Dam during that time are accurate.
Perbandingan Debit Limpasan Langsung antara Pendekatan Model Numerik dan Konvolusi Hidrograf Satuan Sintetis Christopher, Cleon; Ginting, Bobby Minola; Yudianto, Doddi; Wicaksono, Albert
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1 (2022)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1027.341 KB) | DOI: 10.14710/mkts.v28i1.42309

Abstract

Makalah ini membandingkan hasil debit limpasan langsung yang diperoleh menggunakan model numerik aliran dangkal dengan metode hidrograf satuan sintetis (HSS) yang sering digunakan di Indonesia. Secara umum dapat diketahui bahwa metode HSS tersebut masih bersifat empiris, sehingga menyulitkan pengguna dalam penentuan metode yang representatif. Sementara, pendekatan hidrodinamik seperti model numerik aliran dangkal dapat menghasilkan hasil yang lebih akurat dalam memprediksi limpasan langsung dibandingkan dengan HSS karena model tersebut diturunkan secara matematis berdasarkan proses fisik. Hasil yang diperoleh menunjukkan bahwa prediksi limpasan langsung dengan model numerik aliran dangkal (HEC-RAS 5.0.7) memberikan hasil yang lebih akurat dalam memprediksi debit puncak dengan rata-rata error -0,07%, waktu puncak dengan rata-rata error 19,77% serta bentuk hidrograf dengan nilai Root Mean Square Error (RMSE) yang paling kecil pada semua kasus yang telah diuji. Oleh sebab itu, dapat disimpulkan bahwa pendekatan hidrodinamik sangat direkomendasikan dalam memprediksi limpasan langsung untuk kedepannya. Makalah ini juga dibuat dengan harapan dapat dijadikan acuan dalam pengembangan HSS baru yang lebih akurat di masa mendatang.
Studi Pencemaran Sungai Cikakembang akibat Limbah Industri Tekstil Menggunakan QUAL2Kw Muhammad Raul Zahran Wiryawardhana; Finna Fitriana; Doddi Yudianto
Jurnal Ilmu Lingkungan Vol 24, No 1 (2026): Januari 2026
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.24.1.181-190

Abstract

Sungai Cikakembang, sebagai anak Sungai Citarum di bagian hulu, mengalami pencemaran berat akibat limbah industri tekstil dan domestik. Penelitian ini bertujuan untuk mengevaluasi dampak pencemaran terhadap kualitas air serta merumuskan alternatif strategi pengendalian menggunakan pemodelan QUAL2Kw. Studi ini mengintegrasikan parameter COD, yang belum dievaluasi pada studi terdahulu, karena tingginya konsentrasi bahan organik dari limbah tekstil berpotensi menyebabkan penurunan oksigen terlarut secara signifikan. Sampel air diambil dari 12 titik sepanjang sungai untuk menganalisis DO, BOD, COD, dan NH3-N. Parameter tersebut kemudian dimodelkan menggunakan QUAL2Kw, yaitu perangkat lunak berbasis spreadsheet yang memudahkan proses kalibrasi dan validasi model dengan data lapangan. Hasil analisis menunjukkan bahwa kualitas air berada dalam kondisi buruk, dimana parameter-parameter tersebut tidak memenuhi Standar Baku Mutu Air Sungai Kelas II. Simulasi empat skenario pengendalian menunjukkan bahwa peningkatan kualitas air terjadi hanya pada segmen hulu, sedangkan segmen hilir masih memerlukan strategi pengelolaan tambahan yang lebih komprehensif. Penelitian ini menyoroti pentingnya peningkatan teknologi pengolahan limbah, pengawasan ketat terhadap industri, dan monitoring rutin untuk memastikan keberlanjutan kualitas air Sungai Cikakembang.
Pemodelan Dispersi Fosfat dan Evaluasi Strategi Mitigasi Pencemaran Limbah Deterjen Domestik di Saluran Irigasi Cibarani Menggunakan HEC-RAS Ezzy Yuanita; Doddi Yudianto
JURNAL SUMBER DAYA AIR Vol 22, No 1 (2026)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v22i1.1030

Abstract

Phosphate pollution from domestic detergent wastewater poses a significant challenge to urban water quality, particularly in small drainage channels where detergent-derived sources and dispersion patterns have not been thoroughly investigated. This study focuses on the Cibarani Channel in Bandung, Indonesia, where phosphate primarily originates from household detergent discharge. The objective was to model the spatial–temporal dispersion of total phosphate (TP) and evaluate two control strategies: substitution with low-phosphate detergents and partial technical reduction of TP concentration. A steady-flow hydrodynamic and water quality model was developed using HEC-RAS by incorporating field data on flow discharge, TP, DO, BOD, and NH₃–N, as well as community survey results. Model performance was evaluated using R², RMSE, and Nash–Sutcliffe Efficiency (NSE). Simulations during wet and dry seasons showed that TP concentrations consistently exceeded the Class II water quality standard (0.2 mg/L), reaching peaks of 0.878 mg/L during the wet season and 0.578 mg/L during the dry season. The low-phosphate detergent scenario reduced TP concentrations by up to 58%, while the partial technical reduction scenario lowered concentrations close to the water quality standard even under low-flow conditions. Survey results indicated that all respondents were willing to adopt environmentally friendly detergents. The findings suggest that the combination of low-phosphate detergent use and partial technical TP reduction has the potential to become an effective management strategy for reducing phosphate pollution in urban drainage channels.
Evaluasi Efektivitas Rain Barrel dalam Pengendalian Limpasan Permukaan di Kawasan Perumahan Modern di Kota Bogor Muhamad Demirel Prasetya; Doddi Yudianto; Willy Willy
JURNAL SUMBER DAYA AIR Vol 21, No 2 (2025)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v21i2.981

Abstract

Bogor City, with a population of approximately 1,064,000 in 2022 and an annual growth rate of 2.01%, faces increasing pressure to meet housing demands. To accommodate this need, one modern residential development in the area has undergone extensive expansion. A previous assessment indicated that the development of a 10.75-hectare residential area in this neighborhood could increase peak discharge by approximately 24.74% for the 2-year return period and 16.67% for the 5-year return period.Based on these findings, this study aims to evaluate the effectiveness of Low Impact Development (LID) measures, specifically the use of rain barrels, in mitigating the hydrological impacts of land-use changes. Simulations were conducted using the Storm Water Management Model (SWMM) to: (1) analyze changes in peak discharge and runoff volume before and after development; (2) design the residential drainage system while testing different rain barrel capacities; and (3) evaluate the effectiveness of rain barrels in reducing peak discharge and runoff.Simulation results indicate that the installation of two rain barrels per household, each with a diameter of 1.41 m and a height of 1.19 m, can reduce peak discharge by 19.66%, approaching pre-development conditions. However, total runoff volume remains higher than baseline levels, suggesting that additional LID strategies are necessary for more comprehensive flood mitigation. These findings underscore the potential of rain barrels as an effective tool for urban runoff management and provide practical guidance for optimizing their implementation in similar residential developments.
GPM-based Conversion of Daily to Hourly Rainfall Data for Flood Modelling in Kuranji Jose Cristobal; Doddi Yudianto; Qiaoling Li; Albert Wicaksono
JURNAL TEKNIK HIDRAULIK Vol 16, No 1 (2025): Jurnal Teknik Hidraulik
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v16i1.812

Abstract

Tapin District, located in the Kuranji Watershed of South Kalimantan Province, frequently experiences flooding due to heavy rainfall. Flood event simulation can be utilized to generate hourly discharge data for flood early warning systems, addressing the absence of observed hourly discharge data from the Kuranji Automatic Water Level Recorder (AWLR). Moreover, limited watershed parameters and the unavailability of hourly rainfall data pose challenges in developing a hydrological model for the Kuranji Catchment. To overcome this issue, the hourly rainfall distribution pattern from 10 Global Precipitation Measurement Mission (GPM) Satellite grids were used to convert daily rainfall observations recorded at the Talaga Langsat, Lok Paikat, and Tapin Utara rainfall stations Hourly rainfall data from each GPM grid were matched with several synthetic hourly rainfall distribution patterns. The chosen distribution pattern was subsequently applied to simulate flood events using the HEC-HMS model. Two flood events, dated 4–7 March 2017 and 21–23 March 2018, were used for trial fitting to estimate catchment parameters. Simulated hourly discharges were compared with daily discharge data from the AWLR at Kuranji station, using Total Relative Volume Error (TRVE) and Root Mean Square Error (RMSE) as performance indicators. The simulation results demonstrate that daily-to-hourly rainfall conversion is applicable for estimating catchment parameters, with average TRVE and RMSE values of 1.955% and 7.025 m³/s, respectively. Furthermore, the trial fitting results indicate that the simulated discharge values align well with observed peak daily discharge data. Acquiring and incorporating hourly discharge data would enhance the accuracy of daily-to-hourly rainfall conversion by synchronizing the temporal resolution. Additionally, incorporating more flood events into trial fitting tests could produce more robust and representative outcomes.
Co-Authors Adhita Prasetya Adidarma, Wanny Akafi, M. Ma'ruf Albert Wicaksono Andreas F. V. Roy Angela Grace Ariberto Jonathan Bambang Adi Riyanto Bambang Adi Riyanto Bobby Minola Ginting Christopher, Cleon Cleon Christopher EKo Winar Irianto Evely Tirza Ezzy Yuanita Farrell Wiguna Farrell Wiguna Finna Fitriana Fiona, Megan Gao, Cheng Guan, Yiquing Hidayat, Ivana Nathalia Irianto, Eko Winar Jonathan Wijaya Jose Cristobal Kent, Steven Li, Ren Muhamad Demirel Prasetya Muhammad Raul Zahran Wiryawardhana Obaja Triputera Wijaya Okky Ahmad Purwana Polisar, Andrea Prasetya, Adhita Prilla Lidyana Qiaoling Li R. Wahyudi Triweko Rahmat Sudiana Robertus Wahyudi Triweko RW Triweko S Sanjaya S Sanjaya Sabu, Maria Kalista Hadia Sanjaya, S Sanjaya, Stephen Seo, Yong Chan Steven Kent Tandiono, Felix Theo Senjaya Theo Senjaya Triweko, Robertus Wahyudi Waluyo Hatmoko Wang, Qian Wanny K Adidarma Wanny K. Adidarma Willy Aulia Willy Willy Willy Willy Wimordi, Calvin Wimordi, Calvin Xie Yuebo Xie Yuebo Xie Yuebo Yiqing, Guan Yiqing, Guan Yiquing Guan Yong Chan Seo Yudha Primus Kristianto Yuebo, Xie Zhang Xiuju