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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Jurnal Keteknikan Pertanian Jurnal Ilmu Komputer dan Agri-Informatika AGRIVITA, Journal of Agricultural Science Journal of the Civil Engineering Forum Jurnal Irigasi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Sains dan Teknologi Mitigasi Bencana JURNAL SUMBER DAYA AIR Jurnal Tanah dan Iklim J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Roh Santoso Budi Waspodo
Department Of Agricultural Engineering And Biosystem, Faculty Of Agricultural Technology, IPB University, Bogor, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Transportation

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The Dynamic Model of Water Balance in A Sub-Basin Dea Evantri; Muh. Yanuar J. Purwanto; Nora Pandjaitan; Roh Santoso Budi Waspodo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.236-245

Abstract

Management of water resources in a river basin requires a new approach. The availability of water is a basic thing that must be considered given the increasing need for water. This study aimed to develop a water balance model in the Upper Bekasi River Sub Basin. In this study water balance model of the Bekasi River Sub Basin was built with several variables that affect water demand and availability, namely population growth rate, public facilities, and efforts to utilize resources. In this research, water supply and demand modelling was carried out using a dynamic system supported by Vensim software. Simulations were carried out from 2012 to 2045. The increase in population growth was directly proportional to the increased in population water needs. This dynamic model simulation used the application of rainwater harvesting and water-saving behaviour. Water demand for the Bekasi River Sub Basin was equal to 156.649.000 m3/year. The availability of surface water was 138.127.680 m3/year and had not been able to meet the water needs. The dynamic model showed that the water balance will be deficit in 2031, namely 51.883.200 m3/year. However, with the application of the water saving scenario, the water balance has a surplus of 258.564.000 m3 / year until the end of the simulation. Water reducing behavior can be used as an efficient method of water utilization. Keywords: Population, Rainwater harvesting, Simulation, Water management, Water resource
ARTIFICIAL NEURAL NETWORK APPLICATION FOR THE ESTIMATION OF ANNUAL RAINFALL DATA UNRECORDED IN CISADANE WATERSHED Amien, Elhamida Rezkia; Waspodo, Roh Santoso Budi; Setiawan, Budi Indra; Yanto, Rudi
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 1: April 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.1.33-41

Abstract

Naturally in a watershed rainfall distributes spatially. To know rainfall in the watershed needs information from many installed rain gauges. However, rainfall data is found not completely recorded. It is then important to estimate missing or unrecorded  rainfall data. This study aims to estimate annual rainfall data in stations by using ANN (Artificial Neural Network). This study was conducted in Cisadane watershed. This study perfomed using rainfall data for 14  periods, the location of rainfall post (coordinates and elevation), DEM map, and watershed map. Data processing and analyzing performed using Ms. Excel 2010, ArcGIS 10.0, and BackPropogation Neural Network 1.0 program. Data used as input in ANN to estimates unrecorded rainfall data were coordinates (X,Y) and elevation (Z) of each rainfall post. ANN can be used to predict the amount of rainfall in cisadane watershed marked with a value of determination (R2) 0,97. After all data complete, average of rainfall in Cisadane watershed can be calculate using arithmetic, thiessen polygon, and isohyet. The amount of rainfall watershed in Cisadane using the arithmetic mean produce rainfall of 2.609 mm, with Thiessen Polygon of 2.539 mm, and with Isohyets of 2.594 mm. Keywords: ANN, annual rainfall, Cisadane watershed, estimation of rainfall 
PREDICTION OF GROUNDWATER STORAGE IN CISADANE WATERSHED Prasetya, Dimas Ardi; Budi Waspodo, Roh Santoso; Saptomo, Satyanto Krido
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 2: Agustus 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.2.59-68

Abstract

Water is very important for human beings.Sources of fresh water that can be used are only 3% of the total water availability on earth, and 12% from that quantity are soureces of groundwater. Groundwater is one of the water resources that very important in sufficient human needs, such as domestic, agriculture or industry. Geoelectric is one of methods for groundwater investigation. The purposes of this research are to identify litholgy of soil layer, thickness of aquifer position on research location, determining hydraulic soil conductivity value and predict the groundwater reserve potential in Cisadane Watershed. This research was conducted in several steps, such as collected data and analysis data. The processed data was the secondary geoelectrical data with schlumberger method. Calculation of groundwater storage using geoelectric and Darcy’s law. Aquifer thickness layer obtained from the average content aquifer layer on research location, so it can represents the thickness of the aquifer. From the calculation result obtained groundwater reserve prediction amounted to 2.46 m3/second for unconfined aquifer and 8.64 m3/second for confined aquifer.
Analysis of Recharge Potention in Upper Cisadane Watershed Pranoto, Radius; Saptomo, Satyanto Krido; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 2: Agustus 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.2.69-82

Abstract

ABSTRACT                Human disturbance such as land use changes, urbanization, and deforestation degrade Upper Cisadane Watershed. It also causes degradation of recharge area, decrease infiltration and increase runoff. The aims of this research were to (1) identify the criticality of recharge area; and (2) analyze the potential of water recharge in Upper Cisadane Watershed. The criticality of recharge area had been identified  refers to regulation of the Minister of Forestry, Republic of Indonesia Number: P.32/MENHUT-II/2009 by scoring and overlaying of slope, soil type, rainfall, and land use map. The amount of water recharge potential was predicted by the equation issued by IWACO and WASECO (1990).             The result showed that distribution of criticality of recharge area in Upper Cisadane Watershed in 2006, 2009, and 2013 were: (1) good: 24.7%, 24.7%, 23.6%; normal: 6.9%, 6.2%, 3.7%; (3) ranging critical: 17.9%, 17.8%, 19.4%, (4) rather critical: 25.0%, 24.9%, 30.7%; (5) critical: 23.9%, 24.5%, 22.0%; and (6) very critical:  1.9%, 2.0%, 0.7% respectively. The magnitude of the potential of water recharge on average in the recharge area was in good condition; 154.5 x 106 m3, normal; 33.9 x 106 m3, ranging critical; 94.6 x 106 m3, rather critical; 130.9 x 106 m3, critical; 98.2 x 106 m3, very critical; 6.2 x 106 m3. Upper Cisadane Watershed has a potential of annual water recharge was 511.7 x 106  to 569.2 x 106 m3/year or around 14% - 15.6%   of total rainfall, with an average change in the potential of water recharge from the simulation based on the condition of recharge area in 2006-2009 decreased -0.04%, in 2009-2013 decreased -3.2% and in 2006-2013 decreased -3.3%.Keywords: recharge area, infiltration, runoff, criticality.
Prediction of Groundwater Storage in Gabus Wetan Subdistrict, Indramayu Regency, West Java Province, Indonesia Saputra, Septian Fauzi Dwi; Waspodo, Roh Santoso Budi; Setiawan, Budi Indra
Jurnal Teknik Sipil dan Lingkungan Vol. 1 No. 3: Desember 2016
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.1.3.147-158

Abstract

Gabus Wetan Subdistrict, Indramayu Regency in West Java Province known as one of rice production center in Indonesia has common problem of surface irrigation water that is unavailable in dry season. It necessary to find alternative water source from groundwater to increase intensity as well as productivity. The aim of this study were to determine geoelectrical-hydrogeological profiles in form of distribution characteristics of the aquifer indicated by the resistivity of rocks and to predict the groundwater reserve potential in Gabus Wetan, Indramayu Regency. Resulted information can then be used to exploit groundwater for alternative supply of irrigation water. The result of this study shown that the rock resistivity in the area ranging between 1-30 Ωm. The rock aquifers consist of sandy clay, clayey sand, and sand. The shalllow groundwater (unconfined aquifer) are in the range of 3-40 meters below the soil surface having tickness of aquifer in the range of 7-20 meters. The deep groundwater (confined aquifer) can be estimated at the depth of more than 60 meters below the soil surface having tickness more than 40 meters. The hydraulic conductivity is estimated 20 m/day for unconfined aquifer and confined aquifer. The predicted groundwater storage of unconfined aquifer was about 31,687.2 m3/day or 0.37 m3/sec and confined aquifer 99,382.6 m3/day or 1.15 m3/sec.Keywords: aquifer,  groundwater, hydrogeology, hydraulic conductivity, resistivity
Rancangan Sumur Resapan Air Hujan sebagai Upaya Pengurangan Limpasan di Kampung Babakan, Cibinong, Kabupaten Bogor Bahunta, Lussiany; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 1: April 2019
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.4.1.37-48

Abstract

Land use change due to housing construction can indirectly damage the water catchment area. This resulted in a decrease in the area of rainwater absorption that caused rain water collected on existing drainage channels. This study aims to analyse the number and dimensions of infiltration wells in reducing the volume of inundation and determine the value of effectiveness reduction of runoff. The infiltration wells was used to collect rainwater and absorb it into the soil. Based on the calculation in Babakan Village area of 2.42 ha, with runoff coefficient of 0.4 for village character, and design rainfall of 97.36 mm/day, the estimated flood volume based on SNI 03-2453-2002 was 805790.30 liter or 805.79 m3. Based on the calculation, Babakan Village needed 115 infiltration wells and 76 trenches. With the infiltration wells and trenches, the total flood volume can be reduced 620.62 m3 or 77.02% of the total runoff.Keywords: design rainfall, infiltration wells, runoff, trenches 
Eksplorasi Airtanah dengan Metode Tahanan Jenis Menggunakan IPI2Win di Kecamatan Dramaga Kabupaten Bogor, Jawa Barat Prakusya, Ade Ananta; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 2: Agustus 2019
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.4.2.101-114

Abstract

Fresh water is basic needs for human being. The safest for human consumed is groundwater. Groundwater demand will always increase in accordance with the development of an area. The purposes of this research were to identify the depth of aquifer, to know the effectivity of IPI2Win software, and to analyze potential of groundwater reserves in Dramaga District. Groundwater exploration was conducted using geoelectrical methods. This research had done in Dramaga District since January until June 2018. Data were processed using IPI2Win. Based on 9 points measurement at Dramaga District, the soil layer contained a lot of water. IPI2Win was effective to identify aquifers. Based on GL 1, GL 2, GL 5, and GL 6 measurement points which close to the residence area, the aquifer depth was identified less than 6 m with an error value of <15%. Potential of groundwater reserves for unconfined aquifers was 1048.45 m3/day or 12.13 l/s..Keywords: aquifer, geoelectrical method, groundwater, IPI2Win, resistivity
Analisis Kapasitas Saluran Drainase Menggunakan Program SWMM 5.1 di Perumahan Tasmania Bogor, Jawa Barat Kartiko, Luthfi; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 3: Desember 2018
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.3.3.133-148

Abstract

The intensity and duration of rainfall will affect the amount of runoff. A proper drainage design is needed so that runoff from maximum rainfall would not cause a problem such as excess water or flood. The purpose of this research were to analyze the runoff volume in Tasmania Regency, Bogor and get drainage network design in accordance with the runoff that occured. Analysis was carried out using SWMM 5.1 software with designed rainfall was calculated using the Log-Person III method of 147.2 mm. Peak discharge runoff from simulation results were 0.01 - 0.08 m3/s. Based on the simulation there were 20 channels overflowed during maximum runoff and 6 channels were high potentially overflowed so that repairs were also needed. The factors that influenced were the amount of runoff, channels capacity were lower than runoff volume, and the low infiltration value of subcatchment so that only a little water could be infiltrated and the rest of rainfall became runoff.Keywords: drainage channel, rainfall, runoff, SWMM 5.1
Prediksi Potensi Cadangan Air Tanah Menggunakan Persamaan Darcy di Kecamatan Dramaga, Kabupaten Bogor Pangestu, Pangestu; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 4 No. 1: April 2019
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.4.1.59-68

Abstract

Groundwater needs will increase in accordance to area development. Groundwater has a limited quantity because it depends on the geometry and distribution of aquifer. The purpose of this study were to identify soil lithology and aquifer thickness, to determine soil hydraulic conductivity values and to predict potential groundwater reserves in Dramaga District . The processed data were data geoelectric with Schlumberger configuration, hydrogeological maps, and geological maps of Bogor. Aquifer thickness were obtained from the average yield of the aquifer thickness at the research location. Thickness of unconfined aquifer was 14,69 m and 17,77 m for confined aquifer. Aquifer had lithological layers of andesite, tuffaceous, sandstone, clay, and sand. The value of hydraulic conductivity was 2,5 m / day for unconfined aquifer and 2,04 m / day for confined aquifer. Using the Darcy equation groundwater reserves were estimated 241,29 m3 / day or 2,79 l / s for unconfined aquifers and 1291,19 m3 / day or 14,94 l / s for confined aquifers.Key words: aquifer, Darcy equation,  geoelectric, groundwater reserves
Analisis Kebutuhan dan Ketersediaan Air Domestik Menggunakan Metode Regresi di Kota Bogor Noperissa, Virssa; Waspodo, Roh Santoso Budi
Jurnal Teknik Sipil dan Lingkungan Vol. 3 No. 3: Desember 2018
Publisher : Departemen Teknik Sipil dan Lingkungan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsil.3.3.121-132

Abstract

Abstract : Increasing of population in a region is directly proportional to its development. Large number of populations resulted in the wider construction of residential areas. Construction of residential areas requires a clean water supply to fulfill households water demand. The purpose of this research were to analyze the domestic water demand and water availability in Bogor City, and to analyze the suitability between the domestic water supply and demand in Bogor City. The research was done from February to May 2018. This research needed data of population, hydrogeological map and annual river discharge. The correlation between population to domestic water demand using regression method was showed with equation Y = 19549X + 801520.   In 20 years ahead domestic water demand will 80,328,688.57 m3 and total water demand will 125,312,754.2 m3, while total surface water availability will 174,078,720 m3/year. Domestic water availability in Bogor would decrease and would make clean water shortage after 2049 when population reached 1,720,323 persons. Keyword : domestic, surface water, water demand, water supply.
Co-Authors Ade Ananta Prakusya Amalia, Regina Bahunta, Lussiany Budi Indra Setiawan Budiman Minasny Dea Evantri Dea Evantri Dharma, I Gede Aditya Elhamida Rezkia Amien Elokpere, Immanuel Nauk Galih Bhekti Sula Pratama I Dewa Made Subrata I Gede Aditya Dharma Immanuel Nauk Elokpere Joko Sumarsono Kartiko, Luthfi Liyantono . Lussiany Bahunta Luthfi Kartiko M. Yanuar Jawardi Purwanto Meuthia Rachmaniah Muh. Yanuar J. Purwanto Muhammad Irham Sahana Ngudi Aji Jaka Yuwana Noperissa, Virssa Nora H. Pandjaitan Nora Pandjaitan Pangestu Pangestu Pangestu Pangestu Popi Rejekiningrum Prakusya, Ade Ananta Prasetya, Dimas Ardi Pratama, Galih Bhekti Sula Radius Pranoto Rudi Yanto Rudi Yanto, Rudi Saputra, Septian Fauzi Dwi Satyanto Krido Saptomo Septian Fauzi Dwi Saputra Silvia Kusumarini Siti Komariah Virssa Noperissa Vita Ayu Kusuma Dewi Winda Giam Winda Giam