Exposure mapping
Flood and drought layers are intersected with population grids, buildings, roads and utilities to count who and what lies in each hazard class.
GCRI · Water Nexus
Geospatial methods put every observation on the map: catchment boundaries, flood extents, wells, treatment works and the people and assets exposed to each hazard, in a stated coordinate system and resolution.
地理空间信息 系统 capture, store, analyse and present location-referenced data. They provide the common spatial frame for combining hazard, exposure and vulnerability information. In water, climate and hazards and 关键基础设施, geospatial analysis identifies where hazards overlap critical assets and vulnerable populations. It supports location-based planning across infrastructure, health and finance. The canonical description is on STEM Commons.
Flood and drought layers are intersected with population grids, buildings, roads and utilities to count who and what lies in each hazard class.
Elevation models are conditioned and flow-routed to delineate basins and sub-catchments consistently across national borders.
Maps are generalised to cells so they can be published without exposing individual wells, intakes or households.
Flood water, population density and rain over the Nile Basin, from NASA GIBS. Each layer carries its own date.
交互式地图需要JavaScript;图层列表和来源见下文。
图层 3
本页面的当前水情
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最新可用
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap贡献者 (ODbL) · Natural Earth
正在加载最新的NASA影像。
拖动以移动。按住 Ctrl 或 ⌘ 并滚动、双指缩放或使用按钮缩放;悬停可查看指针下的数值;重置可返回该区域。
当前的水情,以尼罗河流域为范围。NASA 发布的卫星和模型产品,各带自己的日期。它们是指标,而非对任何地点的评估。
图层与日期
Datasets and records used by geospatial information 系统 on this platform, with the role each plays and the label its values carry. Sources are listed in 来源登记册.
| 数据 | 角色 | 标签 |
|---|---|---|
| Digital elevation models | Delineation, routing, inundation | 模型生成 |
| Gridded population | Exposure counts | 估算 |
| OpenStreetMap and national asset data | 基础设施风险暴露 | 已报告 |
| 行政边界 | Reporting units | 已发布统计 |
团队遵循该方法时会使用的界面:其指标、状态与决策。名称为示例,数值仅作示意。
Water · GIS for water risk · Run R-3687
kriged estimate · example
| Region 1 | 1.3 | −0.1 | 91 | Undercovers |
| Region 2 | 1.3 | 0.0 | 91 | Undercovers |
| Region 3 | 1.2 | 0.2 | 90 | 通过 |
Positional and attribute accuracy are checked against surveyed control points and reference datasets. Topology rules and metadata standards ensure consistency.
| 核查 | 如何开展 |
|---|---|
| Projection and alignment | Every layer is reprojected to a common equal-area grid before intersection |
| 常态化 | Counts are reported with their denominators; maps of rates use fixed class breaks across dates |
| Disclosure review | Published cell sizes are checked so no individual asset or household can be identified |
Errors in projection, scale and data currency propagate through analysis. Aggregation to administrative units can mask local variation.
Assembled from the Nexus Standards area profile 水风险标准: the hazards it names, the 系统 and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full System Builder.
灾害
控制措施
NS-0 章程与原则NS-1 维持社会运转的 UNI 与制品目录(语法 v0.2:领域、部门、区域和环境分段)NS-3 风险记录 UNI(语法、旧编码对照、分配机构)NS-3b 数据集与产品元数据规范(STAC、DCAT、PROV-O)NS-9 情境 UNI(部署、实例、计划实例)NS-10 政策和条款(机器可读的义务:定义、约束、评估和执行)NS-11 验证与监测(证据、证明、零信任符合性观测)NRS-U28 宇宙 platform profile: Water NexusNRS-H61 危害族:级联失效(NHS-1 sys.cascade)NRS-K42 领域包概况:跨境流域(DOMAIN-042)NRS-N1 水风险与韧性NRS-N7 水-能源-粮食-卫生-生物多样性-基础设施关联耦合NRS-H62 危害类别:复合与多危害事件(NHS-1 sys.compound)观测
示例地理范围
The sectors GIS for water risk touches and how strongly they depend on each other: what a study has to observe and model together.
签名
水及其合作伙伴
水为粮食提供灌溉(0.8),为能源提供冷却水和水电(0.6),为生物多样性提供环境流量(0.6)。
W · E · I · F · H · B
模型、其假设、数据和不确定性,以科学家或工程师会核查的形式呈现。结构遵循已发表的方法。所取数值仅为示意,不是研究发现。
The couplings between the systems in GIS for water risk: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.
Process explorer · Process
7 steps·4 个阶段·1 gate
流程
图层连同其权利一并进入,经对齐、分析和不确定性检查,再经公开安全审查后发布;地图是一项受治理的空间主张。
时空情报 · Data protocols: semantic, jurisdictional and temporal intelligence · NXS-EOPDesigned programme process, not a record of operation. No cycle has run and every programme is at service level R0. A gate is a programme decision, never a public-authority approval, certification or deployment authorisation. The pages cited are design doctrine.
报告 is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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