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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Civil and Environmental Science Journal (CIVENSE) Spatial : Wahana Komunikasi dan Informasi Geografi
Gatot Eko Susilo
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Other

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Journal : Civil and Environmental Science Journal (CIVENSE)

 1 
Data Generation In Order To Replace Lost Flow Data Using Bootstrap Method And Regression Analysis Susilo, Gatot Eko
Civil and Environmental Science Journal (CIVENSE) Vol 1, No 1 (2018)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2018.00101.4

Abstract

This paper aims to find method to generate data in order to replace lost flow data in the series of discharge data in Sungai Seputih River, Lampung Province. Bootstrap simulation is used to estimate the discharge data and complete the existing discharge data. Regression analysis is also used to find the pattern of data distribution. Results of the research show that both methods are able to generate new series of flow data that the distribution is similar to available field data. Results also show that the use of statistical methods is one way to tackle the problem of data limitations due to missing or unrecorded data. The weakness of data generation using a combination of Bootstrap methods and regression analysis is the disappearance of extreme values in the data series. Existing extreme values have been modified to ideal values that satisfy certain distributions. However, careful analysis is required in using statistical method, so that the results of analysis do not deviate from the field conditions.
The analysis of rainwater harvesting carrying capacity on water domestic supply for dwelling areas in Indonesia Susilo, Gatot Eko; Jafri, Muhammad
Civil and Environmental Science Journal (CIVENSE) Vol 2, No 1 (2019)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2019.00106

Abstract

This research aims to promote the method to design rainwater harvesting facilities in Indonesian dwelling areas. The estimation of rainwater harvesting (RWH) carrying capacity is undertaken using a simulation involving rainfall, inflow, and outflow data. The research was undertaken in Natar sub-district, Southern Lampung, Indonesia. Daily rainfall data from Branti Airport from 2013 to 2017 are used for the simulation. Research shows that houses in the study area can supply approximately 35% of their domestic water needs by applying RWH. This means that the support capacity of rainwater harvesting in the study area revolves around that value. The research also shows intensity of rainfall will greatly affect the carrying capacity of RWH. In addition to rainfall, the economic ability of a family plays an important role in planning the dimensions of a RWH facility in a house. Finally, maintenance of RWH facilities on a regular basis is important to ensure the operational effectiveness of RWH.
Rainwater Harvesting as Alternative Source for Wudlu Water in Indonesia Susilo, Gatot Eko
Civil and Environmental Science Journal (CIVENSE) Vol 1, No 2 (2018)
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.civense.2018.00102.3

Abstract

Indonesia is the country with the largest Muslim population in the world. And as a country with Muslim big population clean water for wudlu or purification must be available. Rainwater holds potential as an alternative source of wudlu water. Rainwater harvesting (RWH) for religious water supply is still very rare studied. Based on this, the research in this paper aims to calculate the potential supporting capacity of rainwater as an alternative sourceof wudlu water. Supporting capacity of rainwater harvesting (SCRWH) in this study was calculated by simulating inflow and outflow behavior at a rainwater harvesting facility in a mosque. Case study takes place at Nurul Iman Mosque in Southern Lampung. The mosque has an area of 168 m and able to accommodate 300 worshipers. Research show that the most effective reservoir size in the RWH facility in the observed mosque is between 15 to 30 m2 with SCRWH for wet years between 65% and 70% and for dry years between 44% and 53%, respectively. The availability of wudlu water in a mosque basically cannot be expected 100% comes from rain water only. In the application of RWH in a mosque the maintenance of theRWH facility must be undertaken well.
Co-Authors Ahmad Herison Ahmad Zakaria Elza Novilyansa Endro Prasetyo Wahono Febrian Febrian Geleng Perangin - Angin Laksmi Irianti Margaretta Welly Merida Kristia Muhammad Jafri Ofik Taufik Purwadi Park Eun Ha Philipus Philipus Riko Berli Ardian rizki abadian nur rudi hari perdana Sumiharni Sumiharni Susi Suryanta Nainggolan Tri Utami Yuda Romdania Zaina Khoerunnisa Nurul Fath