Timing dependency review
Systems that use satellite navigation signals for timing, such as telecom networks and grid measurement, are identified with their holdover and backup options.
GCRI · 关键基础设施
用于风险情报和可持续发展的空间 系统 provide positioning, timing, communications and observation that infrastructure depends on. In this field the concern is dependence on satellite timing and positioning, satellite backup communications, and imagery for asset monitoring and damage assessment.
用于风险情报和可持续发展的空间 系统 and satellite services provide positioning, timing, communication and observation from orbit. Many terrestrial systems depend on them, making their disruption a cross-sector risk. In 关键基础设施 and cities and built environment, space systems analysis reveals dependencies of finance, power grids and transport on satellite timing and navigation. It supports planning for backups and space weather events. The canonical description is on STEM Commons.
Systems that use satellite navigation signals for timing, such as telecom networks and grid measurement, are identified with their holdover and backup options.
Satellite links available to operators and emergency services when terrestrial networks fail are documented with their capacity and activation steps.
Radar and optical imagery monitor ground movement near pipelines, dams and embankments, and map damage after events.
Night lights, land cover and population density over Western Europe, from NASA GIBS. Each layer carries its own date.
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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
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Earth observation, framed on Western Europe.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 space 系统 and satellite services 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 |
|---|---|---|
| Operator timing architecture records | Dependency inventory | 已声明 |
| Sentinel-1 radar | Ground deformation | 观测 |
| Satellite communication service records | Backup capacity | 已声明 |
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。
Critical infrastructure · Space systems for infrastructure · Run R-6842
revisit and swath
stratified sample
| 水 | 90 | 88 | 159 |
| Cropland | 81 | 84 | 128 |
| Built-up | 95 | 85 | 126 |
| Forest | 95 | 90 | 182 |
系统 are tested on the ground before launch and monitored in orbit. Conjunction assessments and service performance are checked against independent tracking.
| 核查 | 如何开展 |
|---|---|
| Holdover verification | Claimed holdover times without satellite timing are tested |
| Alternative source review | Alternative timing sources are identified and their independence checked |
| Imagery accuracy | Satellite-based damage and movement estimates are validated in the field |
Debris growth, solar storms and interference are hard to forecast precisely. Ground segments and launch capacity are concentrated.
A 危害足迹 会摧毁每一层中位置相同的资产;碎片化、层间依赖和幸存部分的过载随后使失效蔓延。3D 视图按深度将各层分开。这是使用明示示例数值的教学模型,不是预测。本页地图显示的是西欧;模型本身并不局限于某一地点。
控制措施
读数
| 步骤 | 交通运行(%) | 电力运行(%) | 电信运行(%) |
|---|---|---|---|
| 0 | 100 | 89 | 94 |
| 1 | 100 | 78 | 56 |
| 2 | 89 | 78 | 28 |
| 3 | 67 | 78 | 28 |
| 4 | 39 | 50 | 28 |
| 5 | 39 | 33 | 17 |
The model runs on the teaching values set by the controls. To calibrate it for a place, read it against these admitted layers and series, which this page’s map can draw:
贯穿六大支柱,由 Nexus Consortium 牵头
Assembled from the Nexus Standards area profile 关键基础设施与关键实体: 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.
系统与耦合
控制措施
NS-0 章程与原则NS-3 风险记录 UNI(语法、旧编码对照、分配机构)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-H61 危害族:级联失效(NHS-1 sys.cascade)NRS-H94 危害族:系统性网络事件(NHS-1 cyber.systemic-cyber)NRS-H107 危害族:数字基础设施集中与单一化(NHS-1 tech.digital-concentration)NRS-K31 领域包概况:国家网络韧性(DOMAIN-031)NRS-K36 领域包概况:关键基础设施(DOMAIN-036)NRS-K48 领域包概况:金融系统韧性(DOMAIN-048)观测
示例地理范围
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 space systems for infrastructure: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.
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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