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All Journal Aptisi Transactions on Technopreneurship (ATT) SAINSTEK
Maulana, Aryo Setyo
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Pemodelan Perubahan Tata Guna Lahan dan Koefisien Limpasan Dengan Metode Pembelajaran Terawasi Pada DAS Cisadane Maulana, Aryo Setyo; Hidayat, Dina P.A
SAINSTEK Vol. 12 No. 1 (2024)
Publisher : Sekolah Tinggi Teknologi Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35583/js.v12i1.207

Abstract

The river is one of the main sources to meet human water needs, besides that the river is also used as the main irrigation for irrigation, one of which is the Cisadane river. On the other hand, population growth is increasing every year, forcing people to look for land to build a place to live. With the river as a source of water and livelihood, people build residential land around the river. This has led to changes in land use around the river, causing the effectiveness of the river as a place to collect rainwater to be affected. The purpose of this research is to find out how far the impact of land use change is for the Cisadane River Watershed. In this study the authors used medium satellite imagery, namely Landsat Satellite Imagery. The method used is the Supervised Classification method. Land use modeling is carried out with a span of 10 years, by taking one year as training data, with land use modeling then obtained the value of Coefficient C. Furthermore, another Coefficient C value is obtained from calculations using discharge data, rainfall intensity, and land area. The 2 C values are then compared whether the previously obtained data is appropriate or not.
Flood Disaster Mitigation Using the HEC-RAS Application to Determine River Water Levels in the Old City Area of Jakarta Sejati, Wahyu; Paramitha AH, Dina; Khansa, Fathya; Maulana, Aryo Setyo; Julianingsih, Dwi
Aptisi Transactions On Technopreneurship (ATT) Vol 4 No 2 (2022): July
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/att.v4i2.253

Abstract

The old city area is a tourist area strategically located in the heart of the capital city of DKI Jakarta. The Krukut river is one of the rivers that often overflow, which is one of the causes of flooding in Jakarta. This study aims to determine the water level of the Krukut river so that it can be used as a reference in handling flood disaster mitigation. This study uses the Nakayasu method and the Snyder method to calculate flood discharge, with a return period of up to 100 years. Meanwhile, for modeling the river water level using the HEC-RAS 5.0.07 application. The results of this study, specifically on the upstream cross-section until 300 meters after that TMA, are pretty high with plan one, which is 3 m deep from the bottom of the channel. However, the track still has a sufficient guard height of about 1.5 m. In other words, no overtopping/ river water does not overflow in the upstream area with a return period of 10 years and 25 years. However, due to the narrower channel section, the upstream region is more prone to flooding than the middle downstream area. From the modeling results, the channel prone to erosion is the section 10 track which is widening at the same time that the channel is not filled with the CONCRETE channel, so it is effortless to erode. For this reason, it is recommended to repair the walls of the river/channel to avoid scouring, especially if there is a high/extreme discharge.
Co-Authors Hidayat, Dina P.A Julianingsih, Dwi Khansa, Fathya Paramitha AH, Dina Wahyu Sejati