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All Journal Maspari Journal BERKALA SAINSTEK Jurnal Teknik Sipil dan Perencanaan Jurnal Teknik Pengairan: Journal of Water Resources Engineering Rekayasa Sipil REKAYASA Jurnal Rekayasa Sipil dan Lingkungan Journal of Applied Geospatial Information Teras Jurnal U Karst Jurnal Rekayasa Sipil Jurnal Riset Rekayasa Sipil Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Jurnal Teknika Journal of the Civil Engineering Forum Warta LPM Jurnal Riset Teknik Sipil dan Sains
Retno Utami Agung Wiyono
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Jember
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Mathematics Physics Social Sciences Transportation

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Journal : U Karst

 1 
Flood Vulnerability Assessment of Kali Welang Floodplain by Using AHP-Based Methods Ageng Dwi Wicaksono; Entin Hidayah; Retno Utami Agung Wiyono
U Karst Vol 5, No 1 (2021): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3152.051 KB) | DOI: 10.30737/ukarst.v5i1.1370

Abstract

Floods occur almost every year in a number of areas in the floodplain of Kali Welang. The floods have caused loss of materials and lives. Assessment of the vulnerability is essential for policy making in non-structural treatment of floods.  The objective of this paper is to compute and elaborate the flood vulnerability index in local scale to assess conditions that affect the magnitude of flood hazards.  This study identifies and evaluates the Flood Vulnerability Index (FVI) of an area by considering the factors of area’s exposure to floods, flood susceptibility, and flood resilience. The Analytic Hierarchy Process (AHP) is used to formulate the weights of each component. The values of the components were collected from interviews with policy makers from relevant governmental agencies. The inputs for the AHP were collected from the respondents in a questionnaire survey. This study selected 18 relevant indicators. The FVI results show very high vulnerability in local scale in one village and high vulnerability in other six villages. The results of this study can be used to construct non-structural strategies in flood mitigation by enhancing community’s resilience toward the flood. In addition, the results can be used for policy making process in spatial urban planning.
Performance Assessment of Bondoyudo Watershed Management Hery Budi Sulaksono; Gusfan Halik; Retno Utami Agung Wiyono
U Karst Vol 5, No 1 (2021): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3148.738 KB) | DOI: 10.30737/ukarst.v5i1.1429

Abstract

Continues decrease of vegetation will result in a high erosion and sedimentation rate in the Bondoyudo watershed. This will result in reduced water retention capacity and accelerate land degradation. This study aims to monitor and evaluate the performance conditions of the Bondoyudo watershed according to the assessment parameters of the weighting criteria, which include land criteria, water management criteria, socio-economic criteria, water construction investment criteria, and space utilization criteria. Information about the upper part, middle part, and lower part of Bondoyudo River is collected from primary data, secondary data, and analysis results. The score of the watershed evaluation's carrying capacity is obtained from the results of the analysis from each weighting and scoring value of each criterion and sub-criteria. Watershed performance classifications are obtained by adding up the scores of each criterion. The watershed classification's total score is 103.25, which is classified as a medium recovery level category. It necessary to manage and restore the carrying capacity of the Bondoyudo watershed in supporting the development of water resources so that there is no decline in the performance of the Bondoyudowathersed. Recommended activity plans are water resources conservation, and utilization integrated control and involving stakeholders in watershed management
Tsunami Mitigation Strategy at Watu Ulo Beach Based on Numerical Modeling Using Delft3D-Flow Risqi Sofiana; Retno Utami Agung Wiyono; Indra Nurtjahjaningtyas
U Karst Vol 6, No 2 (2022): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v6i2.2959

Abstract

The coastal area of Watu Ulo Beach in Jember has great resource potential but also the potential for major disasters, such as a tsunami. Tsunamis can cause casualties and destroy buildings. Thus, it is important to assess the possibility of future tsunami disasters. This study aims to simulate a tsunami at Watu Ulo Beach using Delft3D-Flow to analyze the possibility of affected areas. The tsunami modeling is based on two simulations, namely Scenario 1 as model validation using the characteristics of the 1994 Banyuwangi earthquake. Model validation calculation uses the MAPE method <10%. Scenario 2, modeling the southern Java megathrust earthquake, was analyzed to obtain the time and wave height as well as tsunami run-up and inundation, visualizing the area affected by Watu Ulo Beach. The simulation results show that the tsunami wave height at Watu Ulo Beach reached 12.57 m with a travel time of 29 minutes. The run-up elevation was 9.21 m, and the inundation distance was 2.38 km from the Watu Ulo coastline, indicating that the tsunami caused substantial damage. As an area affected by the tsunami, Sumberejo Village has an inundation area of 634.68 ha, and Sabrang Village has an area of 250.03 ha. The temporary evacuation location for Watu Ulo Beach is set at Tanjung Papuma Street via the shortest route of 0.57 km from the assembly point. Based on the results of this study can be used as a reference for determining temporary evacuation routes and locations for tsunami disaster mitigation in coastal areas.
Flood Vulnerability Assessment of Kali Welang Floodplain by Using AHP-Based Methods Ageng Dwi Wicaksono; Entin Hidayah; Retno Utami Agung Wiyono
U Karst Vol. 5 No. 1 (2021): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v5i1.1370

Abstract

Floods occur almost every year in a number of areas in the floodplain of Kali Welang. The floods have caused loss of materials and lives. Assessment of the vulnerability is essential for policy making in non-structural treatment of floods.  The objective of this paper is to compute and elaborate the flood vulnerability index in local scale to assess conditions that affect the magnitude of flood hazards.  This study identifies and evaluates the Flood Vulnerability Index (FVI) of an area by considering the factors of area’s exposure to floods, flood susceptibility, and flood resilience. The Analytic Hierarchy Process (AHP) is used to formulate the weights of each component. The values of the components were collected from interviews with policy makers from relevant governmental agencies. The inputs for the AHP were collected from the respondents in a questionnaire survey. This study selected 18 relevant indicators. The FVI results show very high vulnerability in local scale in one village and high vulnerability in other six villages. The results of this study can be used to construct non-structural strategies in flood mitigation by enhancing community’s resilience toward the flood. In addition, the results can be used for policy making process in spatial urban planning.
Performance Assessment of Bondoyudo Watershed Management Hery Budi Sulaksono; Gusfan Halik; Retno Utami Agung Wiyono
U Karst Vol. 5 No. 1 (2021): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v5i1.1429

Abstract

Continues decrease of vegetation will result in a high erosion and sedimentation rate in the Bondoyudo watershed. This will result in reduced water retention capacity and accelerate land degradation. This study aims to monitor and evaluate the performance conditions of the Bondoyudo watershed according to the assessment parameters of the weighting criteria, which include land criteria, water management criteria, socio-economic criteria, water construction investment criteria, and space utilization criteria. Information about the upper part, middle part, and lower part of Bondoyudo River is collected from primary data, secondary data, and analysis results. The score of the watershed evaluation's carrying capacity is obtained from the results of the analysis from each weighting and scoring value of each criterion and sub-criteria. Watershed performance classifications are obtained by adding up the scores of each criterion. The watershed classification's total score is 103.25, which is classified as a medium recovery level category. It necessary to manage and restore the carrying capacity of the Bondoyudo watershed in supporting the development of water resources so that there is no decline in the performance of the Bondoyudowathersed. Recommended activity plans are water resources conservation, and utilization integrated control and involving stakeholders in watershed management
Co-Authors Abdur Rohman Adden Ramadhan Syarif Ardi Ageng Dwi Wicaksono Agil Priyanto Akbar, Sabda Alam Aldio Dhiva Pratama Cahyani, Hajar Crisia Entin Hidayah Fahir Hassan Faillasuf, Vide Mirza Faradella, Maulida Gusfan Halik Hajar Crisia Cahyani Hery Budi Sulaksono Hilma Wasilah Robbani Imanda, Regita Ramadhani Indra Nurtjahjaningtyas Joseph Dwi Kurniawan Manno Malini, Citra Meta Fitri Rizkiana Narulita, Norma Aulia Ningsih, Alfiati Nur Alif Ryanto Pebriyanti, Fista Prakoso, Tara Adi Pratama, Munawir Prawira, Akbar Bagus Prihartami, Sabrina Putra, Victorius Setiaji Putri, Fidyasari Kusuma Ratih, Masita Risqi Sofiana Saifurridzal Sofiana, Risqi Suparno Suparno Vanadani Pranantya Wei Koon Lee Windy Bana Alam Perkasa Wiwik Yunarni Widiarti