FIM (Flood Information Map Visualization) Deck
收藏DataONE2025-05-22 更新2025-05-31 收录
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The Flood Inundation Mapping (FIM) Visualization Deck is a web-based application designed to display and compare flood extent and depth information across various temporal and scenario conditions. It provides a front-end interface for accessing geospatial flood data and interacting with mapped outputs generated from hydraulic modeling.
Core Functions:
• Flood Extent Mapping: Visualizes flood extents from modeled scenarios (e.g., 2-year, 10-year, 100-year events) and real-time conditions based on streamflow observations or forecasts.
• Flood Depth Visualization: Displays depth rasters over affected areas, derived from hydraulic simulations (e.g., HEC-RAS).
• Scenario Comparison: Allows side-by-side viewing of multiple FIM outputs to support calibration or decision analysis.
• Layer Management Toolbox: Users can toggle basemaps, adjust layer transparency, load datasets, and control map extents.
Data Inputs:
• Precomputed flood inundation extents (raster/tile layers)
• Depth grids
• Stream gauge metadata
• Associated hydraulic model outputs
Technical Stack:
• Front-end: Built with JavaScript, primarily using Leaflet.js for interactive map rendering.
• Back-end Services: Uses GeoServer to serve raster tiles and vector layers (via WMS/WFS). Uses OGC-compliant services and REST endpoints for data queries.
• Data Formats: Raster layers (e.g., GeoTIFF, PNG tiles), vector layers (GeoJSON, shapefiles), elevation models, and model-derived grid outputs.
• Database: Integrates with a PostgreSQL/PostGIS backend or similar spatial database for hydrologic and geospatial data management.
• Deployment: Hosted via University of Iowa infrastructure, with modular UI elements tied to specific watersheds or study areas.
洪水淹没制图(Flood Inundation Mapping, FIM)可视化工作台是一款基于网页的应用程序,旨在展示并对比不同时间维度与情景条件下的洪水淹没范围与水深信息。该应用提供前端界面,用于访问地理空间洪水数据,并对水力模型生成的制图成果进行交互操作。
核心功能:
• 洪水范围制图:可可视化展示情景模型(如2年一遇、10年一遇、100年一遇洪水事件)及基于流量观测或预报的实时工况下的洪水淹没范围。
• 水深可视化:可展示受淹区域内由水力模拟(如HEC-RAS)生成的水深栅格数据。
• 情景对比:支持多组FIM成果的并排查看,以辅助模型率定或决策分析。
• 图层管理工具箱:支持用户切换底图、调整图层透明度、加载数据集以及控制地图视野范围。
数据输入:
• 预计算洪水淹没范围(栅格/瓦片图层)
• 水深网格数据
• 水位站元数据
• 关联水力模型输出成果
技术栈:
• 前端:基于JavaScript开发,主要使用Leaflet.js实现交互式地图渲染。
• 后端服务:采用GeoServer发布栅格瓦片与矢量图层(通过WMS/WFS协议),并使用开放地理空间联盟(OGC)兼容服务与REST接口开展数据查询。
• 数据格式:支持栅格图层(如GeoTIFF、PNG瓦片)、矢量图层(GeoJSON、Shapefile)、高程模型以及模型衍生的网格输出数据。
• 数据库:集成PostgreSQL/PostGIS后端或同类空间数据库,用于水文与地理空间数据的管理。
• 部署方式:依托爱荷华大学(University of Iowa)基础设施进行部署,其模块化UI组件可绑定至特定流域或研究区域。
创建时间:
2025-05-24



