Índice de exposición a la meteorología espacial
0–10 index of space-weather exposure as the product of the space-weather hazard and space-service dependence sub-indices; mostly modelled and expert inputs, so its grade is capped.
product
equal weights · floor 0.1 where geometric
1,000 draws
normalisation, weights, aggregation
2 components
6 leaf indicators
67% minimum
modelled share ≤ 20%
From indicators to the composite
A first-order view of where severe space weather would disrupt the most; a screening measure pending observed impact data.
- Amplitud del campo geoeléctrico con un periodo de retorno de 100 añosIndicator · IND · V/kmModelled peak horizontal geoelectric field at the surface for a 1-in-100-year geomagnetic storm, combining geomagnetic latitude, storm-time magnetic field variation and regional ground conductivity, in volts per kilometre.
- Severe geomagnetic storm days per yearIndicator · IND · d/aAverage annual number of days on which planetary geomagnetic activity reaches NOAA G4 (severe) or G5 (extreme), that is Kp of 8- or more, averaged over the latest two full solar cycles.
- Strong solar radiation storm days per yearIndicator · IND · d/aAverage annual number of days with energetic proton flux at NOAA S3 (strong) or above, averaged over the latest two full solar cycles.
- PIB en actividades dependientes de GNSS, proporciónIndicator · IND · %Share of GDP generated by activities that cannot operate normally without satellite positioning, navigation or timing (logistics, aviation, maritime, precision agriculture, telecom and financial timing), from a dependence mapping of sector value added; target-only, model-based.
- Servicios críticos que dependen de satélites sin respaldo, proporciónIndicator · IND · %Share of assessed critical service functions (communications to remote areas, broadcast, maritime and aviation safety, Earth observation for warning, timing) that rely on satellite links without a tested terrestrial fallback; expert-assessed.
- Red de alta tensión en zonas de alta amenaza geoeléctrica, proporciónIndicator · IND · %Share of transmission line length at 220 kV or above lying where the 100-year geoelectric field exceeds 2 V/km; modelled from grid topology and geoelectric hazard maps.
- Space-weather hazard sub-indexSub-index · SUB · w 1 · 50.0%Composite of the local 100-year geoelectric field with the global frequency of severe geomagnetic and strong radiation storms.
- Space-service dependence sub-indexSub-index · SUB · w 1 · 50.0%Composite of GNSS-dependent GDP share, satellite-reliant critical services without backup and high-voltage grid in high geoelectric hazard zones.
- Índice de exposición a la meteorología espacialDomain index · IDX · product0–10 index of space-weather exposure as the product of the space-weather hazard and space-service dependence sub-indices; mostly modelled and expert inputs, so its grade is capped.
- Exposición a amenazasPillar · PILLAR · 5 indicesWhat can strike, how often, how hard and who and what stands in its way?
- NXS-GRX (canonical data, provenance and risk) Composite RiskComposite · COMPOSITE · four pillarsComposite = (HTE × VUL × MSF × LCC)^(1/4), each pillar on 0–10 floored at 0.1; pillar = expert-weighted geometric mean of its domain indices
Run this index’s own aggregation
Set each component, change the aggregation or the weight uncertainty, and watch the interval, the class probability and each component’s contribution respond.
Treatment, normalisation, weighting, aggregation, uncertainty
- Treatment
- WINSORISE
- Outlier rule
- |skew| > 2, kurtosis > 3.5
- Normalisation
- min–max rescaling
- Imputation
- NONE
- Coverage minimum
- 67% of components
- Modelled share cap
- 20% of weight
- Weighting
- equal
- Aggregation
- product
- Scale
- 0 to 10
- Incertidumbre
- 1,000 Monte Carlo runs over normalisation, weights, aggregation
- Framework basis
- IPCC AR6 risk framing (hazard x exposure); NOAA SWPC space weather scales; Hazard Standard space domain
2 components, 6 indicators
Space-weather hazard sub-index w 1
Composite of the local 100-year geoelectric field with the global frequency of severe geomagnetic and strong radiation storms.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
Amplitud del campo geoeléctrico con un periodo de retorno de 100 añosIND.SPC.weather.geoelectric_field_rp100 | V/km | Class D | usgs-geoelectric-hazard, bgs-geoelectric-models, nexus-gic-model | 50.0% |
Severe geomagnetic storm days per yearIND.SPC.weather.severe_geomagnetic_storm_days | d/a | Class A | gfz-kp-index, noaa-swpc | 25.0% |
Strong solar radiation storm days per yearIND.SPC.weather.radiation_storm_days | d/a | Class A | noaa-swpc, goes-energetic-particles | 25.0% |
Space-service dependence sub-index w 1
Composite of GNSS-dependent GDP share, satellite-reliant critical services without backup and high-voltage grid in high geoelectric hazard zones.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
PIB en actividades dependientes de GNSS, proporciónIND.SPC.dependence.gnss_dependent_gdp.share | % | Class E | nexus-gnss-dependence-model, national-accounts-value-added, euspa-market-report | 33.3% |
Servicios críticos que dependen de satélites sin respaldo, proporciónIND.SPC.dependence.satellite_service_exposure.share | % | Class E | nexus-expert-assessment, itu-space-services-filings | 33.3% |
Red de alta tensión en zonas de alta amenaza geoeléctrica, proporciónIND.SPC.dependence.grid_gic_exposure.share | % | Class D | osm-power-grid, derived:nis:IND.SPC.weather.geoelectric_field_rp100 | 33.3% |
Space environment
Space weather and the exposure of space-dependent services.
| Sub-domain | Indicadores |
|---|---|
| Clima espacial | 3 |
| Space-service dependence | 3 |
Anchor frameworks (pillar structure and definitions only): Hazard Standard space domain; NOAA SWPC scales.
All 6 space environment indicators
| Indicador | Dominio | Sub-domain | Componente | Unidad | Niveles | Crosswalks |
|---|---|---|---|---|---|---|
Severe geomagnetic storm days per yearIND.SPC.weather.severe_geomagnetic_storm_days | SPC | Clima espacial | hazard | d/a | GLOBAL | UNDRR_HIPS_2025 ET0101 EMDAT nat-ext-spa-geo |
Amplitud del campo geoeléctrico con un periodo de retorno de 100 añosIND.SPC.weather.geoelectric_field_rp100 | SPC | Clima espacial | hazard | V/km | COUNTRY, ADM1, GRID | |
Strong solar radiation storm days per yearIND.SPC.weather.radiation_storm_days | SPC | Clima espacial | hazard | d/a | GLOBAL | UNDRR_HIPS_2025 ET0104 EMDAT nat-ext-spa-ene |
PIB en actividades dependientes de GNSS, proporciónIND.SPC.dependence.gnss_dependent_gdp.share | SPC | Space-service dependence | exposure | % | COUNTRY, PORTFOLIO | UNDRR_HIPS_2025 ET0102 |
Servicios críticos que dependen de satélites sin respaldo, proporciónIND.SPC.dependence.satellite_service_exposure.share | SPC | Space-service dependence | vulnerability | % | COUNTRY | |
Red de alta tensión en zonas de alta amenaza geoeléctrica, proporciónIND.SPC.dependence.grid_gic_exposure.share | SPC | Space-service dependence | exposure | % | COUNTRY, ADM1 |
Space-weather exposure index, world
The world reading of this index, every country as a tile and the largest movements since the previous edition.
- Edición anterior
- –
- Range since 2016
- –
- Compuesto acoplado
- –
- Puntuación de acoplamiento S
- –
- Pulso, última semana
- –
- Outlook, 12 months
- –
- Método
- Indicator Standard 1.0 · NXS-GRX 2026
- Extracciones
- 1,000
Aún no hay valores publicados. La primera edición trazará aquí la serie histórica con su banda de intervalo y los límites de clase.
Country values
- Teselas
/api/v1/public/grix/risk-products/tiles/spc/{z}/{x}/{y}.mvt- Clave de observación
nis:IDX.SPC.weather.space_weather_exposure:{ISO3}:{YEAR}:A
Series that read this index
Crosswalks and validity checks
Crosswalks map leaf indicators to source code lists; established indices are used for validity checks, never re-weighted as inputs.
| Code system | Leaf indicators mapped |
|---|---|
UNDRR_HIPS_2025 | 3 |
EMDAT | 2 |
Platforms, standards and ways to take part
Field and service platforms of GCRI, GRF and GRA, the Nexus Risk Standards for this domain, learning, working groups and open calls. Every link is a live page.
Citar y reutilizar
See this index in every country profile
Each profile shows this index with its interval and class once released.
Estado
La metodología, la estructura y las definiciones de The Global Risks Index son un borrador de trabajo preparatorio (2026), difundido para examen y comentarios y no para su aplicación. Ningún valor aparece hasta que se publica una edición a partir de un corte de evidencia gobernado; los valores incluyen entonces intervalos, clases, fuentes y su vía de corrección. Los simuladores aplican los métodos publicados a las cifras que usted elija y nunca muestran un valor del NXS-GRX.
Lo que NXS-GRX no es
NXS-GRX es información de investigación y analítica de riesgos. No es una calificación crediticia ni ESG y no usa ninguna escala de calificación; no es un índice de referencia para instrumentos financieros, ni estadística oficial, ni una alerta de emergencia o clasificación oficial, ni asesoramiento. No debe usarse para evaluar a personas físicas. Las clases de riesgo son bandas en una escala publicada, nunca clasificaciones de países ni de personas.
Instituciones y fuentes
The Nexus Consortium is stewarded by three independent not-for-profit institutions: The Global Centre for Risk and Innovation (GCRI), through GCRI US in Washington, DC and GCRI Canada in Ontario, with GCRI Canada as Lead Institution, Consortium Secretariat and lead contracting organisation; The Global Risks Forum (GRF); and The Global Risks Alliance (GRA). Technology, infrastructure and service providers work with the Consortium at arm’s length under written agreements, like every other external party in the public-private-planet model, and hold no role in its stewardship.
Cada valor lleva la atribución de sus fuentes, que conservan sus propias licencias. Los nombres externos se citan únicamente a efectos de interoperabilidad. Los textos de autoría de Nexus están destinados a publicarse bajo CC BY 4.0.
Avis en français
La méthodologie et les définitions du NXS-GRX sont un projet de travail préparatoire (2026). Le NXS-GRX est une information de recherche et d’analyse des risques : ni notation, ni indice de référence financier, ni statistique officielle, ni alerte, ni conseil. Les classes de risque sont des bandes sur une échelle publiée, non des classements.