Índice de riesgo de seguridad hídrica
0–10 index of water security risk combining scarcity and stress, WASH access, water quality and transboundary dependence; geometric so that good access does not offset severe scarcity.
geometric
equal weights · floor 0.1 where geometric
1,000 draws
normalisation, weights, aggregation, imputation
4 components
11 leaf indicators
75% minimum
modelled share ≤ 20%
From indicators to the composite
The water dimension of a place profile; each sub-index stays visible beside the index.
- Nivel de estrés hídricoIndicator · IND · %Total freshwater withdrawn by all sectors as a percentage of total renewable freshwater resources after subtracting environmental flow requirements.
- Recursos totales de agua dulce renovable per cápitaIndicator · IND · m3/a/personLong-term average internal and external renewable surface and groundwater resources per resident, in cubic metres per year.
- Disminución del almacenamiento de aguas subterráneasIndicator · IND · mm/aTrend in terrestrial groundwater storage over at least 15 years, in millimetres of equivalent water height per year (positive = decline), from satellite gravimetry with modelled soil-moisture and surface-water storage removed.
- Eficiencia en el uso del aguaIndicator · IND · USD/m3Gross value added of agriculture, industry and services per cubic metre of water withdrawn by those sectors, at constant 2015 US dollars, weighted by each sector’s share of withdrawals; its change over time is the SDG target measure.
- Población que utiliza agua potable gestionada de forma seguraIndicator · IND · %Share of the population using an improved drinking-water source located on premises, available when needed and free from faecal and priority chemical contamination.
- Población que utiliza saneamiento gestionado de forma seguraIndicator · IND · %Share of the population using an improved sanitation facility not shared with other households, whose excreta are safely disposed of in situ or treated off site.
- Población con instalaciones básicas para el lavado de manosIndicator · IND · %Share of the population with a hand-washing facility with soap and water available at home.
- Masas de agua con buena calidad ambientalIndicator · IND · %Share of monitored river, lake and groundwater bodies whose measured oxygen, salinity, nitrogen, phosphorus and acidity meet national good-quality targets.
- Aguas residuales tratadas de forma seguraIndicator · IND · %Share of domestic and industrial wastewater flows that are treated to a level meeting national or local standards before discharge.
- Tasa de dependencia del agua renovable externaIndicator · IND · %Share of total renewable water resources that originates outside the country, as inflow from upstream countries or shared aquifers.
- Superficie de cuencas transfronterizas con cooperación operativaIndicator · IND · %Share of the country’s transboundary river, lake and aquifer basin area covered by an arrangement for water cooperation that is operational.
- Water scarcity and stress sub-indexSub-index · SUB · w 2 · 40.0%Composite of the level of water stress, renewable water per capita, groundwater storage decline and water-use efficiency.
- Drinking water, sanitation and hygiene access sub-indexSub-index · SUB · w 1 · 20.0%Composite of safely managed drinking water, safely managed sanitation and basic hand-washing coverage.
- Water quality sub-indexSub-index · SUB · w 1 · 20.0%Composite of the share of water bodies with good ambient quality and the share of wastewater safely treated.
- Transboundary water dependence sub-indexSub-index · SUB · w 1 · 20.0%Composite of the external water dependency ratio and the share of transboundary basin area under operational cooperation.
- Índice de riesgo de seguridad hídricaDomain index · IDX · geometric0–10 index of water security risk combining scarcity and stress, WASH access, water quality and transboundary dependence; geometric so that good access does not offset severe scarcity.
- Vulnerabilidad humana y de los sistemasPillar · PILLAR · 8 indicesHow susceptible are people, livelihoods, ecosystems and essential systems to harm when a shock arrives?
- 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
- 75% of components
- Modelled share cap
- 20% of weight
- Weighting
- equal
- Aggregation
- geometric
- Scale
- 0 to 10
- Incertidumbre
- 1,000 Monte Carlo runs over normalisation, weights, aggregation, imputation
- Framework basis
- SDG 6; UN-Water framing of water security; OECD/JRC Handbook (2008)
4 components, 11 indicators
Water scarcity and stress sub-index w 2
Composite of the level of water stress, renewable water per capita, groundwater storage decline and water-use efficiency.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
Nivel de estrés hídricoIND.WAT.stress.water_stress | % | Class B | fao-aquastat, un-sdg-database, wb-wdi | 44.4% |
Recursos totales de agua dulce renovable per cápitaIND.WAT.stress.renewable_water.pc | m3/a/{person} | Class B | fao-aquastat, wb-wdi | 22.2% |
Disminución del almacenamiento de aguas subterráneasIND.WAT.stress.groundwater_depletion | mm/a | Class C | nasa-grace-fo, igrac-ggis, national-groundwater-monitoring | 22.2% |
Eficiencia en el uso del aguaIND.WAT.stress.water_use_efficiency | [USD]/m3 | Class B | fao-aquastat, un-sdg-database, wb-wdi | 11.1% |
Drinking water, sanitation and hygiene access sub-index w 1
Composite of safely managed drinking water, safely managed sanitation and basic hand-washing coverage.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
Población que utiliza agua potable gestionada de forma seguraIND.WAT.access.safely_managed_drinking_water.share | % | Class B | who-unicef-jmp, wb-wdi | 33.3% |
Población que utiliza saneamiento gestionado de forma seguraIND.WAT.access.safely_managed_sanitation.share | % | Class B | who-unicef-jmp, wb-wdi | 33.3% |
Población con instalaciones básicas para el lavado de manosIND.WAT.access.basic_handwashing.share | % | Class B | who-unicef-jmp, wb-wdi | 33.3% |
Water quality sub-index w 1
Composite of the share of water bodies with good ambient quality and the share of wastewater safely treated.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
Masas de agua con buena calidad ambientalIND.WAT.quality.good_ambient_water_quality.share | % | Class B | unep-gems-water, un-sdg-database | 50.0% |
Aguas residuales tratadas de forma seguraIND.WAT.quality.wastewater_safely_treated.share | % | Class B | who-un-habitat-wastewater, un-sdg-database | 50.0% |
Transboundary water dependence sub-index w 1
Composite of the external water dependency ratio and the share of transboundary basin area under operational cooperation.
| Indicador | Unidad | Evidencia | Fuentes | Proporción |
|---|---|---|---|---|
Tasa de dependencia del agua renovable externaIND.WAT.dependence.external_water_dependency | % | Class B | fao-aquastat | 66.7% |
Superficie de cuencas transfronterizas con cooperación operativaIND.WAT.dependence.transboundary_cooperation.share | % | Class B | unece-unesco-sdg652, un-sdg-database | 33.3% |
Agua
Water availability, stress, access, quality and transboundary dependence.
| Sub-domain | Indicadores |
|---|---|
| Estrés hídrico | 5 |
| Drinking water and sanitation | 4 |
| Water quality | 2 |
| Transboundary dependence | 2 |
Anchor frameworks (pillar structure and definitions only): SDG 6; FAO AQUASTAT.
All 13 water indicators
| Indicador | Dominio | Sub-domain | Componente | Unidad | Niveles | Crosswalks |
|---|---|---|---|---|---|---|
Nivel de estrés hídricoIND.WAT.stress.water_stress | WAT | Estrés hídrico | hazard | % | COUNTRY, ADM1 | SDG 6.4.2 WB_WDI ER.H2O.FWST.ZS |
Puntuación de estrés hídrico de referencia (subcuenca)IND.WAT.stress.baseline_water_stress | WAT | Estrés hídrico | hazard | {score} | COUNTRY, ADM1, CITY, GRID, SITE, PORTFOLIO | |
Recursos totales de agua dulce renovable per cápitaIND.WAT.stress.renewable_water.pc | WAT | Estrés hídrico | hazard | m3/a/{person} | COUNTRY | WB_WDI ER.H2O.INTR.PC |
Disminución del almacenamiento de aguas subterráneasIND.WAT.stress.groundwater_depletion | WAT | Estrés hídrico | hazard | mm/a | COUNTRY, ADM1, GRID | |
Eficiencia en el uso del aguaIND.WAT.stress.water_use_efficiency | WAT | Estrés hídrico | adaptive capacity | [USD]/m3 | COUNTRY | SDG 6.4.1 WB_WDI ER.GDP.FWTL.M3.KD |
Población que utiliza agua potable gestionada de forma seguraIND.WAT.access.safely_managed_drinking_water.share | WAT | Drinking water and sanitation | vulnerability | % | COUNTRY, ADM1, CITY | SDG 6.1.1 WB_WDI SH.H2O.SMDW.ZS EPI UWD |
Población que utiliza al menos agua potable básicaIND.WAT.access.basic_drinking_water.share | WAT | Drinking water and sanitation | vulnerability | % | COUNTRY, ADM1 | WB_WDI SH.H2O.BASW.ZS |
Población que utiliza saneamiento gestionado de forma seguraIND.WAT.access.safely_managed_sanitation.share | WAT | Drinking water and sanitation | vulnerability | % | COUNTRY, ADM1, CITY | WB_WDI SH.STA.SMSS.ZS SDG 6.2.1 EPI USD |
Población con instalaciones básicas para el lavado de manosIND.WAT.access.basic_handwashing.share | WAT | Drinking water and sanitation | vulnerability | % | COUNTRY, ADM1 | WB_WDI SH.STA.HYGN.ZS SDG 6.2.1 |
Masas de agua con buena calidad ambientalIND.WAT.quality.good_ambient_water_quality.share | WAT | Water quality | vulnerability | % | COUNTRY, ADM1 | SDG 6.3.2 |
Aguas residuales tratadas de forma seguraIND.WAT.quality.wastewater_safely_treated.share | WAT | Water quality | coping capacity | % | COUNTRY, CITY | SDG 6.3.1 EPI WWT |
Tasa de dependencia del agua renovable externaIND.WAT.dependence.external_water_dependency | WAT | Transboundary dependence | exposure | % | COUNTRY | |
Superficie de cuencas transfronterizas con cooperación operativaIND.WAT.dependence.transboundary_cooperation.share | WAT | Transboundary dependence | coping capacity | % | COUNTRY | SDG 6.5.2 |
Water security risk 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/wat/{z}/{x}/{y}.mvt- Clave de observación
nis:IDX.WAT.stress.water_security_risk:{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 |
|---|---|
SDG | 8 |
WB_WDI | 6 |
EPI | 3 |
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.
En todo el Nexus
Water Nexus · GRF Diplomacy · GRF Climate and Nature Governance.
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.