Indeks keterpaparan cuaca antariksa
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.
- Amplitudo medan geolistrik pada periode ulang 100 tahunIndicator · 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.
- PDB dalam kegiatan yang bergantung pada GNSS, porsiIndicator · 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.
- Layanan kritis yang bergantung pada satelit tanpa cadangan, porsiIndicator · 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.
- Jaringan tegangan tinggi di zona bahaya geolistrik tinggi, porsiIndicator · 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.
- Indeks keterpaparan cuaca antariksaDomain 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.
- Paparan bahaya dan ancamanPillar · 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
- Ketidakpastian
- 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.
| Indikator | Unit | Bukti | Sumber | Proporsi |
|---|---|---|---|---|
Amplitudo medan geolistrik pada periode ulang 100 tahunIND.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.
| Indikator | Unit | Bukti | Sumber | Proporsi |
|---|---|---|---|---|
PDB dalam kegiatan yang bergantung pada GNSS, porsiIND.SPC.dependence.gnss_dependent_gdp.share | % | Class E | nexus-gnss-dependence-model, national-accounts-value-added, euspa-market-report | 33.3% |
Layanan kritis yang bergantung pada satelit tanpa cadangan, porsiIND.SPC.dependence.satellite_service_exposure.share | % | Class E | nexus-expert-assessment, itu-space-services-filings | 33.3% |
Jaringan tegangan tinggi di zona bahaya geolistrik tinggi, porsiIND.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 | Indikator |
|---|---|
| Cuaca antariksa | 3 |
| Space-service dependence | 3 |
Anchor frameworks (pillar structure and definitions only): Hazard Standard space domain; NOAA SWPC scales.
All 6 space environment indicators
| Indikator | Domain | Sub-domain | Komponen | Unit | Tingkat | Crosswalks |
|---|---|---|---|---|---|---|
Severe geomagnetic storm days per yearIND.SPC.weather.severe_geomagnetic_storm_days | SPC | Cuaca antariksa | hazard | d/a | GLOBAL | UNDRR_HIPS_2025 ET0101 EMDAT nat-ext-spa-geo |
Amplitudo medan geolistrik pada periode ulang 100 tahunIND.SPC.weather.geoelectric_field_rp100 | SPC | Cuaca antariksa | hazard | V/km | COUNTRY, ADM1, GRID | |
Strong solar radiation storm days per yearIND.SPC.weather.radiation_storm_days | SPC | Cuaca antariksa | hazard | d/a | GLOBAL | UNDRR_HIPS_2025 ET0104 EMDAT nat-ext-spa-ene |
PDB dalam kegiatan yang bergantung pada GNSS, porsiIND.SPC.dependence.gnss_dependent_gdp.share | SPC | Space-service dependence | keterpaparan | % | COUNTRY, PORTFOLIO | UNDRR_HIPS_2025 ET0102 |
Layanan kritis yang bergantung pada satelit tanpa cadangan, porsiIND.SPC.dependence.satellite_service_exposure.share | SPC | Space-service dependence | vulnerability | % | COUNTRY | |
Jaringan tegangan tinggi di zona bahaya geolistrik tinggi, porsiIND.SPC.dependence.grid_gic_exposure.share | SPC | Space-service dependence | keterpaparan | % | 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.
- Edisi sebelumnya
- –
- Range since 2016
- –
- Komposit terkait
- –
- Skor keterkaitan S
- –
- Pulse, minggu terakhir
- –
- Outlook, 12 months
- –
- Metode
- Indicator Standard 1.0 · NXS-GRX 2026
- Sampel
- 1,000
Belum ada nilai yang diterbitkan. Edisi pertama menggambar riwayat di sini dengan pita interval dan batas kelas.
Country values
- Ubin peta
/api/v1/public/grix/risk-products/tiles/spc/{z}/{x}/{y}.mvt- Kunci observasi
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.
Kutip dan gunakan kembali
See this index in every country profile
Each profile shows this index with its interval and class once released.
Status
Metodologi, struktur, dan definisi The Global Risks Index merupakan draf kerja persiapan (2026), yang diedarkan untuk ditinjau dan dikomentari, bukan untuk diterapkan. Tidak ada nilai yang ditampilkan sampai sebuah edisi dirilis dari pemotongan bukti yang diatur; nilai-nilai tersebut kemudian memuat interval, kelas, sumber, dan jalur koreksinya. Simulator menjalankan metode yang diterbitkan pada angka yang Anda pilih dan tidak pernah menampilkan nilai NXS-GRX.
Apa yang bukan NXS-GRX
NXS-GRX adalah informasi riset dan analitik risiko. NXS-GRX bukan peringkat kredit atau ESG dan tidak memakai skala peringkat, bukan acuan untuk instrumen keuangan, bukan statistik resmi, bukan peringatan darurat atau klasifikasi resmi, dan bukan nasihat. NXS-GRX tidak boleh digunakan untuk menilai orang perseorangan. Kelas risiko adalah pita pada skala yang diterbitkan, tidak pernah peringkat negara atau orang.
Lembaga dan sumber
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.
Setiap nilai memuat atribusi sumbernya, yang tetap memiliki lisensinya masing-masing. Nama-nama eksternal dikutip semata-mata untuk interoperabilitas. Teks yang disusun Nexus direncanakan berlisensi CC BY 4.0 saat dirilis.
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.