scholarly journals Flood Vulnerability Analysis using Weighted Overlay

2021 ◽  
Author(s):  
Ferzha Putra Utama ◽  
Yudi Setiawan ◽  
Arie Vatresia ◽  
Julia Purnama Sari
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Sea Level ◽  
Flood Control ◽  
Geographic Information ◽  
Decision Makers ◽  
Flood Vulnerability ◽  
Weighted Overlay ◽  
Thematic Map ◽  
Priority Area

Several areas in Bengkulu City are affected by floods every year; one of the worst is the Sungai Serut sub-district.  The existence of a river that stretches along Sungai Serut also plays a role in floods over the Bengkulu area. Furthermore, this study to see the priority area over this district is still limited.  Mapping flood areas is one way to provide information, especially for decision-makers in flood control using geographic information systems. Our research aims to map flood vulnerability areas based on land height, slope, and river buffer by weighting these criteria. This thematic map is the result of overlaying several maps according to the flood vulnerability criteria. The results of this study indicate that Sungai Serut is an area with "Very Vulnerable" and "Vulnerable" levels of flood vulnerability. The story of flood vulnerability is dominated by gently sloping contours, with land elevation levels mostly below 20 m above sea level. In addition, the thing that exacerbates the potential for flood vulnerability is the existence of the river that runs along the Sungai Serut sub-district.

scholarly journals Using Public Participation Geographic Information Systems (PPGIS) to Identify Valued Landscapes Vulnerable to Sea Level Rise

2020 ◽  
Vol 12 (17) ◽  
pp. 6711
Author(s):  
Wayde C. Morse ◽  
Cody Cox ◽  
Christopher J. Anderson
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Public Participation ◽  
Sea Level Rise ◽  
Sea Level ◽  
Global Climate ◽  
Geographic Information ◽  
Landscape Values ◽  
History Of ◽  
Mexico Coast

The U.S. Gulf of Mexico coast has a long history of intense and varied development, from energy infrastructure and seaports to vacation homes and tourism. Coastal populations and development are growing. Concurrently, global climate change will influence sea level rise, resulting in increased flooding, storm surge, and coastal erosion. Regional planners must prepare for sea level rise and develop adaptive solutions to maximize resiliency. Comprehensive coastal vulnerability mapping assessments (CVMA) can integrate social, economic, and physical vulnerability with spatial analysis of natural hazards for local place-based investigations. Public Participation Geographic Information Systems (PPGIS) are a potentially important tool for the spatial collection of stakeholder knowledge for CVMA. The objective of this study was to assess the locations of a range of landscape values, ecosystem services, and development preferences held and identified by the general public using PPGIS to determine if those valued locations are vulnerable to sea level rise. We found that PPGIS can be used to map a wide variety of landscape values and that they can be used to assess vulnerability to sea level rise. We conclude with a discussion on how to integrate PPGIS into participatory CVMA for sea level rise planning.

GeoVisualization and GIS

2011 ◽  
pp. 389-406
Author(s):  
Vlasios Voudouris ◽  
Stephanie Larissa Marsh
Keyword(s):  
Decision Making ◽  
Information Systems ◽  
Geographic Information Systems ◽  
Human Computer Interaction ◽  
Geographic Information ◽  
Usability Evaluation ◽  
Decision Makers ◽  
Usability Evaluation Methods ◽  
Collaborative Decision ◽  
Computer Interaction

This chapter introduces the relationships among geovisualization, human computer interaction (HCI), geographic information systems (GIS) and cartography as a means of supporting decision making. It emphasizes the importance of the data modelling and the associated visualizations in terms of what we can do by way of analysis and the methods by which we can undertake the analysis. It also argues that concepts from Usability Evaluation Methods (UEMs) and other HCI techniques offer a potentially more substantive approach to understanding the use of visualizations in collaborative decision making. Furthermore, the authors hope that understanding the underlying assumptions and relations among geovisualization, human computer interaction, geographic information systems and cartography will inform researchers and decision makers of a better design for studying geovisualization as enabling means of decision making.

scholarly journals Studi Potensi Daerah Genangan Banjir Pasang (rob) Perairan Meulaboh dengan Sistem Informasi Geografis (SIG) Studi Potensi Daerah Genangan Banjir Pasang (rob) Perairan Meulaboh dengan Sistem Informasi Geografis (SIG) (Kajian Teknis)

2022 ◽  
Vol 28 (3) ◽  
pp. 371-380
Author(s):  
Asril Zevri
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Water Level ◽  
Sea Level ◽  
Digital Elevation Model ◽  
Geographic Information ◽  
Flood Inundation ◽  
Tidal Flooding ◽  
Digital Elevation ◽  
Elevation Model

Abstrak Kota Meulaboh adalah salah satu daerah di provinsi Nanggroe Aceh Darussalam yang berada di wilayah perairan Lautan Samudra Hindia sebagai sarana Pelabuhan. Pelabuhan Meulaboh sangat berperan penting dalam meningkatkan perekonomian dan memenuhi kebutuhan masyarakat khususnya di Wilayah Kabupaten Aceh Barat. Daerah perairan pantai sangat rentan terhadap banjir pasang (rob) akibat fluktuasi muka air laut dengan kejadian pasang tertinggi (Highest Water Level) yang berpotensi mengakibatkan daerah genangan banjir di sekitar wilayah pemukiman penduduk. Studi penelitian dilakukan untuk menganalisis pemetaan potensi daerah genangan banjir pasang (rob) menggunakan Sistem Informasi Geografis (SIG). Elevasi tinggi pasang surut dianalisis dengan metode Admiralty, penggambaran elevasi kontur permukaan tanah dan banjir pasang (rob) dianalisis berdasarkan data Digital Elevation Model (DEM), dan pemetaan potensi daerah genangan banjir antara elevasi permukaan banjir pasang (rob) dengan peta administratif Kota Meulaboh dilakukan dengan Sistem Informasi Geografis (SIG) yang menggunakan software Arcgis. Hasil penelitian menunjukan elevasi muka air banjir pasang (rob) tertinggi berada di ketinggian 0.78 m di atas permukaan laut rata-rata (MSL) dan mengakibatkan potensi luas daerah genangan banjir mencapai 18.18 Km2. Luas daerah genangan banjir mengakibatkan 11 desa terkena dampak dan mengakibatkan kerugian bagi masyarakat khususnya di wilayah Desa Kampung Pasir, Suak Indrapuri, Suak Raya, dan Suak Nie. Kata-kata Kunci: Meulaboh, pasang surut, admiralty, dan sistem informasi geografis. Abstract Meulaboh City is one of the regions in the province of Nanggroe Aceh Darussalam in the territorial waters Indian Ocean as a port. Meulaboh Port is very important in improving the economy and meeting the needs of the community, especially in the District of West Aceh. Coastal waters are very susceptible to tidal flooding (rob) due to sea level fluctuations with the highest water level which has the potential to cause flooding areas around residential areas. The research study was conducted to analyze the mapping of potential tidal flood areas (rob) using Geographic Information Systems (GIS). Tidal height analysis is carried out using the Admiralty method, depiction of ground surface contour elevation and tidal flooding (rob) is analyzed based on Digital Elevation Model (DEM) data, and mapping of potential inundation areas between tidal flood surface elevations (ROB) with administrative maps of Meulaboh City carried out with a Geographic Information System (GIS) that uses Arcgis software. The results showed that the highest tidal flood water level (rob) was at an altitude of 0.78 m above the mean sea level (MSL) and resulted in the potential area of ​​flood inundation areas reaching 18.18 Km2. The total of ​​flood inundation area affected 11 villages and caused losses to the community, especially in the villages of Kampung Pasir, Suak Indrapuri, Suak Raya, and Suak Nie. Keywords: Meulaboh, tides, admiralty, and geographic information systems.

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