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All Journal Applied Research in Science and Technology INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Mariana Marselina
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science

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Sub-Watershed Prioritization for Sustainable Sediment Management in the Upper Cisokan Hydropower Catchment Using SWAT+ Pusparinda, Laella; Mariana Marselina
Applied Research in Science and Technology Vol. 5 No. 2 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i2.85

Abstract

Background: Sedimentation poses a critical threat to hydropower sustainability, particularly in pumped storage systems such as the Upper Cisokan Pumped Storage (UCPS) plant in West Java, Indonesia.Aims and Methods: This study assesses the spatio-temporal dynamics of sediment yield in the Cisokan Watershed using the SWAT+ model, incorporating historical simulations (2013 and 2023) and a 2038 projection under a Business-As-Usual (BAU) scenario developed through supervised classification in Google Earth Engine (GEE).Result: Model calibration based on observed discharge data yielded satisfactory results (NSE = 0.80 in 2013, 0.65 in 2023), validating its suitability for sediment analysis. Results reveal a nearly fourfold increase in average sediment yield from 0.61 to 2.25 tons/ha/year between 2013 and 2023, with a projected rise to 5.57 tons/ha/year by 2038. A composite prioritization index, integrating current sediment output, decadal change, and sub-watershed area, identified SW-23, SW-16, and SW-5 as the highest priority areas for erosion mitigation. These findings were validated against future projections, confirming their persistent erosion risk. The study emphasizes the importance of scenario-based watershed planning in safeguarding hydropower infrastructure. By integrating sediment modeling with scenario-based land use projection via supervised classification in Google Earth Engine (GEE), this study provides a replicable framework for proactive watershed management and hydropower sustainability planning.
ENVIRONMENTAL AND HEALTH RISK ASSESSMENT (EHRA) APPROACHES IN THE STRATEGIC ENVIRONMENTAL RISK ASSESSMENT (SEA) : A METAANALYSIS Anindrya Nastiti; Siska Widya D Kusumah; Mariana Marselina; Karina Nursyafira; Astrid Monica; Dharmawan Phan
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 4, NUMBER 1, OCTOBER 2020
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v4i1.7191

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Aim: This paper aims to understand how the concept of risk and riskgovernance can be best articulated and integrated into Indonesia’s SEA.Attention regarding health risks emerging from human interactions withthe physical environment has increased in Sustainable Development andPlanning (SDP). Methodology and Results: Strategic EnvironmentAssessment (SEA) is the current context-based methodology addressingenvironmental and health risks of development planning in manycountries. Environmental and health risk assessment (EHRA) is anintegrated part of the SEA. EHRA, as a field of science, has evolved towardsspecific needs in many sectors, e.g. dose-response, quantitative microbialrisk assessment, ecological risk assessment. The main challenge is how todetermine the suitable EHRA approaches and translate the fact-basedEHRA into risk-informed strategies in SDP. In Indonesia, the SEA is mandatory for regional planning documents. However, there is limitedguidelines and application on EHRA in SEA. Through a meta-analysis, wereviewed scholarly articles published from 2009 to 2019 available inGoogle Scholar that report the concepts and implementation of EHRA andSEA in various countries. Conclusion, significance and study impact: Thisstudy has significant implications for the understanding of risk governancein SDP.
Co-Authors Anindrya Nastiti Astrid Monica Dharmawan Phan Karina Nursyafira Pusparinda, Laella Siska Widya D Kusumah