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The Global Risks Index
The Global Risks Index · GRX-IDX-WAT · VUL Human and systems vulnerability

Indeks risiko ketahanan air

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.

Construction Simulator Indicators
Page GRX-IDX-WATEdition Baseline Edition 2026Evidence close 2026-09-30Indicator Standard IDX.WAT.stress.water_security_riskValues not yet publishedMethod v1.0.0-draft
FIG 1 · Method card
Aggregation

geometric

equal weights · floor 0.1 where geometric

Ketidakpastian

1,000 draws

normalisation, weights, aggregation, imputation

Struktur

4 components

11 leaf indicators

Cakupan

75% minimum

modelled share ≤ 20%

From the Indicator Standard definition of this index.
11
leaf indicators
4
components
1,000
Monte Carlo draws
6
series read it
01Konstruksi

From indicators to the composite

The water dimension of a place profile; each sub-index stays visible beside the index.

computation
How Water security risk is computed
Graph18 nodes
Grafik
01Indikator
02Sub-indices
03Domain index
04Pilar
05Komposit
100%
Indeks
  1. Tingkat cekaman air
    Indicator · IND · %
    Total freshwater withdrawn by all sectors as a percentage of total renewable freshwater resources after subtracting environmental flow requirements.
  2. Total sumber daya air tawar terbarukan per kapita
    Indicator · IND · m3/a/person
    Long-term average internal and external renewable surface and groundwater resources per resident, in cubic metres per year.
  3. Penurunan simpanan air tanah
    Indicator · IND · mm/a
    Trend 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.
  4. Efisiensi penggunaan air
    Indicator · IND · USD/m3
    Gross value added of agriculture, industry and services per cubic metre of water withdrawn by those sectors, at constant 2015 US dollars, weighted by each sector’s share of withdrawals; its change over time is the SDG target measure.
  5. Penduduk yang menggunakan air minum yang dikelola secara aman
    Indicator · 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.
  6. Penduduk yang menggunakan sanitasi yang dikelola secara aman
    Indicator · 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.
  7. Penduduk dengan fasilitas cuci tangan dasar
    Indicator · IND · %
    Share of the population with a hand-washing facility with soap and water available at home.
  8. Badan air dengan kualitas air ambien yang baik
    Indicator · IND · %
    Share of monitored river, lake and groundwater bodies whose measured oxygen, salinity, nitrogen, phosphorus and acidity meet national good-quality targets.
  9. Aliran air limbah yang diolah secara aman
    Indicator · IND · %
    Share of domestic and industrial wastewater flows that are treated to a level meeting national or local standards before discharge.
  10. Rasio ketergantungan pada air terbarukan dari luar
    Indicator · IND · %
    Share of total renewable water resources that originates outside the country, as inflow from upstream countries or shared aquifers.
  11. Luas DAS lintas batas dengan kerja sama operasional
    Indicator · IND · %
    Share of the country’s transboundary river, lake and aquifer basin area covered by an arrangement for water cooperation that is operational.
  12. Water scarcity and stress sub-index
    Sub-index · SUB · w 2 · 40.0%
    Composite of the level of water stress, renewable water per capita, groundwater storage decline and water-use efficiency.
  13. Drinking water, sanitation and hygiene access sub-index
    Sub-index · SUB · w 1 · 20.0%
    Composite of safely managed drinking water, safely managed sanitation and basic hand-washing coverage.
  14. Water quality sub-index
    Sub-index · SUB · w 1 · 20.0%
    Composite of the share of water bodies with good ambient quality and the share of wastewater safely treated.
  15. Transboundary water dependence sub-index
    Sub-index · SUB · w 1 · 20.0%
    Composite of the external water dependency ratio and the share of transboundary basin area under operational cooperation.
  16. Indeks risiko ketahanan air
    Domain index · IDX · geometric
    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.
  17. Kerentanan manusia dan sistem
    Pillar · PILLAR · 8 indices
    How susceptible are people, livelihoods, ecosystems and essential systems to harm when a shock arrives?
  18. NXS-GRX (canonical data, provenance and risk) Composite Risk
    Composite · COMPOSITE · four pillars
    Composite = (HTE × VUL × MSF × LCC)^(1/4), each pillar on 0–10 floored at 0.1; pillar = expert-weighted geometric mean of its domain indices
Belum dijalankanSedang berjalanSelesai
FIG 2. 11 indicators, 4 components, real Indicator Standard weights (the bar under each node is its share). Select a node to trace what it feeds and what feeds it; Simulate run plays the computation in order. Schematic of the construction; source: Indicator Standard composite definitions.
02Simulator

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.

FIG 3 · Simulator: aggregate water security risk on your numbers
Components (0 to 10)
3.0
5.0
7.0
4.0
25
1
–
berjalan di peramban Anda
Contribution of each component (leave one out)
Simulator: the index’s published aggregation run on numbers you set, with 1,000 draws over weights and aggregation. The slider positions are starting points for the explainer, not NXS-GRX values. Simulated on your own inputs; not a measured result.
03Metode

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
Ketidakpastian
1,000 Monte Carlo runs over normalisation, weights, aggregation, imputation
Framework basis
SDG 6; UN-Water framing of water security; OECD/JRC Handbook (2008)
Sangat rendah0.0 hingga < 2.0
Rendah2.0 hingga < 3.5
Sedang3.5 hingga < 5.0
Tinggi5.0 hingga < 6.5
Sangat tinggi6.5 hingga 10.0
04Components

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.

IndikatorUnitBuktiSumberProporsi
Tingkat cekaman airIND.WAT.stress.water_stress%Class Bfao-aquastat, un-sdg-database, wb-wdi44.4%
Total sumber daya air tawar terbarukan per kapitaIND.WAT.stress.renewable_water.pcm3/a/{person}Class Bfao-aquastat, wb-wdi22.2%
Penurunan simpanan air tanahIND.WAT.stress.groundwater_depletionmm/aClass Cnasa-grace-fo, igrac-ggis, national-groundwater-monitoring22.2%
Efisiensi penggunaan airIND.WAT.stress.water_use_efficiency[USD]/m3Class Bfao-aquastat, un-sdg-database, wb-wdi11.1%

Drinking water, sanitation and hygiene access sub-index w 1

Composite of safely managed drinking water, safely managed sanitation and basic hand-washing coverage.

IndikatorUnitBuktiSumberProporsi
Penduduk yang menggunakan air minum yang dikelola secara amanIND.WAT.access.safely_managed_drinking_water.share%Class Bwho-unicef-jmp, wb-wdi33.3%
Penduduk yang menggunakan sanitasi yang dikelola secara amanIND.WAT.access.safely_managed_sanitation.share%Class Bwho-unicef-jmp, wb-wdi33.3%
Penduduk dengan fasilitas cuci tangan dasarIND.WAT.access.basic_handwashing.share%Class Bwho-unicef-jmp, wb-wdi33.3%

Water quality sub-index w 1

Composite of the share of water bodies with good ambient quality and the share of wastewater safely treated.

IndikatorUnitBuktiSumberProporsi
Badan air dengan kualitas air ambien yang baikIND.WAT.quality.good_ambient_water_quality.share%Class Bunep-gems-water, un-sdg-database50.0%
Aliran air limbah yang diolah secara amanIND.WAT.quality.wastewater_safely_treated.share%Class Bwho-un-habitat-wastewater, un-sdg-database50.0%

Transboundary water dependence sub-index w 1

Composite of the external water dependency ratio and the share of transboundary basin area under operational cooperation.

IndikatorUnitBuktiSumberProporsi
Rasio ketergantungan pada air terbarukan dari luarIND.WAT.dependence.external_water_dependency%Class Bfao-aquastat66.7%
Luas DAS lintas batas dengan kerja sama operasionalIND.WAT.dependence.transboundary_cooperation.share%Class Bunece-unesco-sdg652, un-sdg-database33.3%
05Domain

Air

Water availability, stress, access, quality and transboundary dependence.

Sub-domainIndikator
Tekanan air5
Air minum dan sanitasi4
Water quality2
Transboundary dependence2

Anchor frameworks (pillar structure and definitions only): SDG 6; FAO AQUASTAT.

06Indikator

All 13 water indicators

FIG 4 · Indicators in scope, by domain and sub-domain
WAT · 13
Area is the number of indicator definitions; colour is the pillar the domain feeds (Macroeconomy and Space feed through their indices). Select a block to filter the table. Source: Indicator Standard Nexus Indicator Standard register.
IndikatorDomainSub-domainKomponenUnitTingkatCrosswalks
Tingkat cekaman airIND.WAT.stress.water_stressWATTekanan airhazard%COUNTRY, ADM1SDG 6.4.2 WB_WDI ER.H2O.FWST.ZS
Skor dasar cekaman air (sub-DAS)IND.WAT.stress.baseline_water_stressWATTekanan airhazard{score}COUNTRY, ADM1, CITY, GRID, SITE, PORTFOLIO
Total sumber daya air tawar terbarukan per kapitaIND.WAT.stress.renewable_water.pcWATTekanan airhazardm3/a/{person}COUNTRYWB_WDI ER.H2O.INTR.PC
Penurunan simpanan air tanahIND.WAT.stress.groundwater_depletionWATTekanan airhazardmm/aCOUNTRY, ADM1, GRID
Efisiensi penggunaan airIND.WAT.stress.water_use_efficiencyWATTekanan airkapasitas adaptif[USD]/m3COUNTRYSDG 6.4.1 WB_WDI ER.GDP.FWTL.M3.KD
Penduduk yang menggunakan air minum yang dikelola secara amanIND.WAT.access.safely_managed_drinking_water.shareWATAir minum dan sanitasivulnerability%COUNTRY, ADM1, CITYSDG 6.1.1 WB_WDI SH.H2O.SMDW.ZS EPI UWD
Penduduk yang menggunakan setidaknya air minum dasarIND.WAT.access.basic_drinking_water.shareWATAir minum dan sanitasivulnerability%COUNTRY, ADM1WB_WDI SH.H2O.BASW.ZS
Penduduk yang menggunakan sanitasi yang dikelola secara amanIND.WAT.access.safely_managed_sanitation.shareWATAir minum dan sanitasivulnerability%COUNTRY, ADM1, CITYWB_WDI SH.STA.SMSS.ZS SDG 6.2.1 EPI USD
Penduduk dengan fasilitas cuci tangan dasarIND.WAT.access.basic_handwashing.shareWATAir minum dan sanitasivulnerability%COUNTRY, ADM1WB_WDI SH.STA.HYGN.ZS SDG 6.2.1
Badan air dengan kualitas air ambien yang baikIND.WAT.quality.good_ambient_water_quality.shareWATWater qualityvulnerability%COUNTRY, ADM1SDG 6.3.2
Aliran air limbah yang diolah secara amanIND.WAT.quality.wastewater_safely_treated.shareWATWater qualitykapasitas penanggulangan%COUNTRY, CITYSDG 6.3.1 EPI WWT
Rasio ketergantungan pada air terbarukan dari luarIND.WAT.dependence.external_water_dependencyWATTransboundary dependenceketerpaparan%COUNTRY
Luas DAS lintas batas dengan kerja sama operasionalIND.WAT.dependence.transboundary_cooperation.shareWATTransboundary dependencekapasitas penanggulangan%COUNTRYSDG 6.5.2
07Kuotasi

Water security risk index, world

The world reading of this index, every country as a tile and the largest movements since the previous edition.

NXS-GRX · WAT · 195 profiles · 0–10 scale
Water security risk index, world
–
Nilai terbit bersama edisi; interval, kelas, dan perubahan muncul di sini.
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
Water security risk index, world, by edition

Belum ada nilai yang diterbitkan. Edisi pertama menggambar riwayat di sini dengan pita interval dan batas kelas.

The line is the point value by edition; the band is the 90% interval; dashed lines are the class bounds at 2, 3.5, 5 and 6.5.
Afrika54
DZA AGO BEN BWA BFA BDI CPV CMR CAF TCD COM COG CIV COD DJI EGY GNQ ERI SWZ ETH GAB GMB GHA GIN GNB KEN LSO LBR LBY MDG MWI MLI MRT MUS MAR MOZ NAM NER NGA RWA STP SEN SYC SLE SOM ZAF SSD SDN TGO TUN UGA TZA ZMB ZWE
Amerika35
ATG ARG BHS BRB BLZ BOL BRA CAN CHL COL CRI CUB DMA DOM ECU SLV GRD GTM GUY HTI HND JAM MEX NIC PAN PRY PER KNA LCA VCT SUR TTO USA URY VEN
Asia48
AFG ARM AZE BHR BGD BTN BRN KHM CHN CYP PRK GEO IND IDN IRN IRQ ISR JPN JOR KAZ KWT KGZ LAO LBN MYS MDV MNG MMR NPL OMN PAK PHL QAT KOR SAU SGP LKA PSE SYR TJK THA TLS TUR TKM ARE UZB VNM YEM
Eropa44
ALB AND AUT BLR BEL BIH BGR HRV CZE DNK EST FIN FRA DEU GRC VAT HUN ISL IRL ITA LVA LIE LTU LUX MLT MCO MNE NLD MKD NOR POL PRT MDA ROU RUS SMR SRB SVK SVN ESP SWE CHE UKR GBR
Oseania14
AUS FJI KIR MHL FSM NRU NZL PLW PNG WSM SLB TON TUV VUT
Belum ada pergerakan. Perubahan sejak edisi sebelumnya dicantumkan di sini mulai edisi kedua, beserta indikator yang mendorongnya.
08Nilai

Country values

FIG 5 · Water security risk index: countries (values when released)
Memuat peta
AndorraAntigua dan BarbudaBahrainBarbadosKomoroTanjung VerdeDominikaMikronesiaGrenadaKiribatiSaint Kitts dan NevisSaint LuciaLiechtensteinMonakoMaladewaKepulauan MarshallMaltaMauritiusNauruPalauSingapuraSan MarinoSao Tome dan PrincipeSeychellesTongaTuvaluVatikanSaint Vincent dan GrenadineSamoa
Equal Earth · Natural Earth 1:110mValues when released
Until the first edition is released the map shows UN M49 regions or the Nexus Reports edition; it then shows this index’s classes with each country’s interval on hover. Countries are listed by name, never ordered by value.
Ubin peta
/api/v1/public/grix/risk-products/tiles/wat/{z}/{x}/{y}.mvt
Kunci observasi
nis:IDX.WAT.stress.water_security_risk:{ISO3}:{YEAR}:A
09Seri

Series that read this index

GLBGlobal SystemsThe state of interdependent global risk: the twenty domain indices aggregated to the world, the five core systems (water, energy, food, health, biodiversity) and their couplings, the global tail register and the gap between perceived and measured risk. GS-01Global WaterAccess, scarcity, quality, floods and droughts, groundwater depletion, transboundary dependency and the couplings of water to energy, food, health and nature. SR-07Food, water and energyThe food–water–energy nexus: shared stressors, trade-offs and joint failures. SR-09Planetary boundariesEarth-system boundaries and tipping elements as slow-onset, high-impact risk. XT-01Artificial Intelligence and Agentic SystemsAI and agentic systems as physical infrastructure (compute, energy, water, materials and supply chains) and as a hazard source: failure, misuse, concentration and oversight gaps. TH-01Nexus InterdependencyThe water, energy, food, health and biodiversity systems read together: drought to energy stress, energy disruption to health stress, biodiversity loss to food-system stress, flood to water contamination, heat to health and grid stress, cyber-physical disruption across all five.
10Validity

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 systemLeaf indicators mapped
SDG8
WB_WDI6
EPI3
11Di seluruh Nexus

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.

12Kutip

Kutip dan gunakan kembali

GCRI Canada (2026). The Global Risks Index (NXS-GRX): Water security risk index (GRX-IDX-WAT), Baseline Edition 2026. Preparatory working draft. https://risksindex.com/indices/water-security-risk/ UNI NXS-GRX-AR-000131.

See this index in every country profile

Each profile shows this index with its interval and class once released.

Country profiles All indices

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.