QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping
The Risk-Mapper Plugin, developed by the International Water Management Institute (IWMI), introduces a powerful open-source solution for high-resolution flood risk analysis within the QGIS environment. Designed to overcome longstanding challenges in obtaining accurate flood extent data and construct...
| Main Authors: | , , |
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| Format: | Informe técnico |
| Language: | Inglés |
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International Water Management Institute
2025
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| Online Access: | https://hdl.handle.net/10568/179754 |
| _version_ | 1855516542383423488 |
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| author | Jayamini, Kalpani Alahacoon, Niranga Amarnath, Giriraj |
| author_browse | Alahacoon, Niranga Amarnath, Giriraj Jayamini, Kalpani |
| author_facet | Jayamini, Kalpani Alahacoon, Niranga Amarnath, Giriraj |
| author_sort | Jayamini, Kalpani |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The Risk-Mapper Plugin, developed by the International Water Management Institute (IWMI), introduces a powerful open-source solution for high-resolution flood risk analysis within the QGIS environment. Designed to overcome longstanding challenges in obtaining accurate flood extent data and constructing detailed exposure and vulnerability indices, the plugin automates complex geospatial workflows. It integrates them into a unified, user-friendly framework. Its core innovation lies in combining three essential components, Hazard, Exposure, and Vulnerability, to generate a composite flood risk index that supports scientifically grounded, evidence-based decision-making. A key feature of the plugin is its use of multi-year Sentinel-1 Synthetic Aperture Radar (SAR) imagery to derive flood Hazard. This ensures precise flood extent mapping even during adverse weather conditions. The hazard layer is further enriched through integration with high-resolution exposure datasets (population, infrastructure, cropland) and vulnerability indicators derived from socio-economic and demographic data. Risk-Mapper includes a suite of tools for raster preprocessing, hazard and exposure analysis, vulnerability computation, and final risk analysis. With bundled sample datasets and seamless installation through the QGIS Plugin Manager, it enables users, including government agencies, researchers, and planners, to produce fine-scale flood risk maps efficiently. |
| format | Informe técnico |
| id | CGSpace179754 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | International Water Management Institute |
| publisherStr | International Water Management Institute |
| record_format | dspace |
| spelling | CGSpace1797542026-01-14T02:02:06Z QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping Jayamini, Kalpani Alahacoon, Niranga Amarnath, Giriraj flooding risk analysis risk assessment vulnerability hazards The Risk-Mapper Plugin, developed by the International Water Management Institute (IWMI), introduces a powerful open-source solution for high-resolution flood risk analysis within the QGIS environment. Designed to overcome longstanding challenges in obtaining accurate flood extent data and constructing detailed exposure and vulnerability indices, the plugin automates complex geospatial workflows. It integrates them into a unified, user-friendly framework. Its core innovation lies in combining three essential components, Hazard, Exposure, and Vulnerability, to generate a composite flood risk index that supports scientifically grounded, evidence-based decision-making. A key feature of the plugin is its use of multi-year Sentinel-1 Synthetic Aperture Radar (SAR) imagery to derive flood Hazard. This ensures precise flood extent mapping even during adverse weather conditions. The hazard layer is further enriched through integration with high-resolution exposure datasets (population, infrastructure, cropland) and vulnerability indicators derived from socio-economic and demographic data. Risk-Mapper includes a suite of tools for raster preprocessing, hazard and exposure analysis, vulnerability computation, and final risk analysis. With bundled sample datasets and seamless installation through the QGIS Plugin Manager, it enables users, including government agencies, researchers, and planners, to produce fine-scale flood risk maps efficiently. 2025-12-18 2026-01-13T13:21:17Z 2026-01-13T13:21:17Z Report https://hdl.handle.net/10568/179754 en Open Access application/pdf International Water Management Institute CGIAR Climate Action Program Jayamini, K.; Alahacoon, N.; Amarnath, G. 2025. QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Climate Action Program. 37p. |
| spellingShingle | flooding risk analysis risk assessment vulnerability hazards Jayamini, Kalpani Alahacoon, Niranga Amarnath, Giriraj QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title | QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title_full | QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title_fullStr | QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title_full_unstemmed | QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title_short | QGIS plugin for fine-scale hazard, exposure, vulnerability, and risk mapping |
| title_sort | qgis plugin for fine scale hazard exposure vulnerability and risk mapping |
| topic | flooding risk analysis risk assessment vulnerability hazards |
| url | https://hdl.handle.net/10568/179754 |
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