Nexus StandardsMaster subsiteNexus domain
6 areas · /water-food/

Water and Food Systems

Water allocation, crop production and food access fail together: a drought shows first in a basin, then in a harvest, then in a market price and a nutrition record. This subsite crosswalks the hydrological, agricultural and food-security instruments so that one shock can be traced along that whole chain. Every artifact of these areas carries a UNI (Unique Nexus Identifier), which identifies and never certifies.

Areas
6
4 with a registry row
Nexus Standards
8
listed by the areas
Open standards
22
named and linked, never reproduced
Feeds
18
0 admitted · the rest pending
UNI
requested · not yet allocated
Status
PROPOSEDsubsite created · awaiting go
Last reviewed
area context bank
Cite this page

Nexus Standards (2026). Water and Food Systems: master subsite of the Nexus Standards (PROPOSED areas). https://nexustandards.com/water-food/. Last reviewed 2026-10-17.

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01Context map

An example geography for this subsite.

Open Earth observation layers framed on ganges brahmaputra, as an example geography for water and food systems: context for where its records live, never an assessment and never a statement of where the standards apply. Layers, dates and credits are on the map.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 2

Water now

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

Rain, flood water and root-zone soil moisture from NASA satellites and models, with long-term water stress, framed on the Ganges and Brahmaputra Basin.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural EarthSources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • GPM IMERG precipitation, NASA Precipitation Processing System; distributed by the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • SMAP Level 4 soil moisture and snow mass, NASA Global Modeling and Assimilation Office; distributed by the NASA National Snow and Ice Data Center DAAC; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • GRACE and GRACE-FO JPL mascon solution, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • GHRSST Level 4 MUR analyses, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Optional layers (35 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Precipitation rate, daily mean: GPM IMERG, NASA GES DISC · 12 Oct 2026
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • Root-zone soil moisture, 0 to 100 cm: SMAP Level 4, NASA NSIDC DAAC · 11 Oct 2026
  • Snow cover: VIIRS NOAA-20 NDSI, NASA LANCE · 13 Oct 2026
  • Water storage anomaly, monthly: GRACE-FO JPL mascons, NASA JPL PO.DAAC · July 2022
  • Sea surface temperature anomaly: GHRSST MUR25, NASA JPL PO.DAAC · 12 Oct 2026
  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026

02Area index

6 areas in Water and Food Systems.

Every area of the subsite with its tier, status, the Nexus Standards it lists, the open standards it names, its feeds and its couplings. Area entries are PROPOSED; registry rows are named where they exist.

Area index · Water and Food SystemsFrom the context bank
  1. 01Water risk standardsNexus domainsStatusregistry · plannedNexus StandardsNS-0 · NS-1 · NS-3 · NS-3b · NS-9 · NS-10 · NS-11Open standards6Feeds5 0 admittedCouplings4
  2. 02Food and agriculture risk standardsNexus domainsStatusregistry · plannedNexus StandardsNS-0 · NS-1 · NS-3 · NS-3b · NS-9 · NS-10 · NS-11Open standards5Feeds5 0 admittedCouplings4
  3. 03Agriculture and land useSectors and industriesStatusregistry · plannedNexus StandardsNS-0 · NS-3 · NS-9 · NS-10 · NS-14Open standards6Feeds4 0 admittedCouplings4
  4. 04Water utilities and basinsSectors and industriesStatusregistry · plannedNexus StandardsNS-0 · NS-3 · NS-9 · NS-10 · NS-11Open standards5Feeds4 0 admittedCouplings4
  5. 05Food security and nutrition riskRisk disciplinesStatusproposedNexus StandardsNS-0 · NS-3 · NS-9 · NS-10 · NS-11Open standards4Feeds4 0 admittedCouplings4
  6. 06FAO and food securityMultilateral and institutional technical areasStatusproposedNexus StandardsNS-3 · NS-10Open standards3Feeds3 0 admittedCouplings4

Area index4 of 6 areas have a registry row; the rest are proposed areas with a full context entry and no registry row yet. Feed counts include sources pending admission.

03Coupling map

Water and Food Systems among the other subsites.

38 coupling rows join this subsite's areas to 11 other subsites, counted from the systemicContext rows of the area context bank in both directions. Select a card on the canvas to trace it.

Canvas · couplings with the other subsitesDesign, not a record
Water and Food Systems: couplings with the other subsitesSubsites whose areas record a coupling into Water and Food Systems, the areas of Water and Food Systems with the highest coupling counts, and the subsites its areas couple out to, counted from the systemicContext rows of the area context bank (PROPOSED). A reading aid, not a dependency proof.

Fig.Edge labels count coupling rows. GATE marks a subsite, DONE and RUNNING an area of this subsite. Tags give reading order only. Design, not a record.

Coupled subsiteRowsExample mechanism
Health and Biosecurity9Cascade: flood damage to sanitation and drinking-water failures drive cholera and other water-borne outbreaks.Water risk standards to Health risk standards
Climate and Earth Systems5Cascade: marine heatwaves and acidification reduce fisheries and aquaculture output.Oceans and coasts risk standards to Food and agriculture risk standards
Energy and Critical Infrastructure4Common driver and cascade: low river flows and high water temperatures curtail hydropower and thermal-plant cooling, while grid outages stop pumping and treatment.Water risk standards to Energy risk standards
Industry, Trade and Supply Chains4Cascade: export restrictions and chokepoint closures transmit local shocks into global price spikes.Food and agriculture risk standards to Supply chain and trade risk
Early Warning and Anticipatory Action3Mechanism: food security triggers drive anticipatory action.Food security and nutrition risk to Early warning and anticipatory action
Governance, Security and Society3Feedback: conflict disrupts production and markets, and food price spikes are associated with unrest.Food and agriculture risk standards to Conflict and security risk standards
Humanitarian Action and Development3Anticipatory cash and input distributions are released on forecast triggers that read agricultural season monitoring records.Agriculture and land use to Humanitarian and civil society
Cities and the Built Environment2Urban flooding and combined-sewer overflows couple drainage assets with land use and building exposure.Water utilities and basins to Cities and the built environment
04Live feeds

18 sources named by the areas, every one honest about admission.

Provider, licence, delivery path and register status for each source. A source is live on a public page only after an owner decision admits it; until then it reads pending admission.

Every feed · pending admission

No legal register row admits any of these sources for live display on public pages yet, so nothing is read from them here. A register row that exists records the source for the governed GRIx path; admission for public pages is a separate owner decision.

Admitted
0
none yet
Register row exists
15
recorded for the GRIx path
Proposed row
3
terms to be recorded
Delivery
12 GRIx · 0 plugin · 2 browser · 4 snapshot
GRIx first, then plugin, browser-direct, snapshot
  • Aqueduct 4.0 Water Risk Atlaspending admission

    World Resources Institute · static release with projections

    CC BY 4.0

    GRIx governed readregister row exists

  • CHIRPS quasi-global gridded precipitationpending admission

    UC Santa Barbara Climate Hazards Center · pentadal and monthly

    Copyright waiver stated by the provider; Foundry register: LEGAL_REVIEW_REQUIRED

    build-time snapshotregister row exists

  • ESA WorldCover 10 m land coverpending admission

    European Space Agency · 2020 and 2021 epochs

    CC BY 4.0

    GRIx governed readregister row exists

  • FAOSTATpending admission

    Food and Agriculture Organization of the United Nations · annual

    CC BY 4.0 under the FAO Statistical Database Terms of Use (register row carries an older adapter string)

    GRIx governed readregister row exists

  • FAOSTAT APIpending admission

    Food and Agriculture Organization of the United Nations · annual

    CC BY 4.0 per the FAO statistical database terms of use (the Foundry register row records CC BY-NC-SA, unverified; to be reconciled)

    GRIx governed readregister row exists

  • FEWS NET datapending admission

    Famine Early Warning Systems Network · monthly

    FEWS NET terms (to be confirmed)

    GRIx governed readregister row exists

  • FEWS NET food security outlooks and datapending admission

    Famine Early Warning Systems Network · monthly

    FEWS NET terms (to be recorded by Legal/IP)

    GRIx governed readregister row exists

  • FEWS NET outlooks and datapending admission

    Famine Early Warning Systems Network · monthly

    FEWS NET terms not recorded; Foundry register: LEGAL_REVIEW_REQUIRED

    browser-direct readregister row exists

  • GloFAS global flood forecastspending admission

    Copernicus Emergency Management Service · daily

    CEMS-Floods datasets licence

    GRIx governed readregister row exists

  • GloFAS global flood forecasts and reanalysispending admission

    Copernicus Emergency Management Service (ECMWF) · daily

    CEMS-Floods datasets licence (approved with conditions in the Foundry register)

    GRIx governed readregister row exists

  • GRACE/GRACE-FO terrestrial water storage masconspending admission

    NASA JPL (PO.DAAC) · monthly

    NASA Earth science data and information policy (open)

    GRIx governed readregister row exists

  • IPC acute food insecurity analysespending admission

    IPC Global Partners · per analysis cycle

    IPC terms not recorded; Foundry register: LEGAL_REVIEW_REQUIRED

    browser-direct readregister row exists

  • IPC food insecurity classificationspending admission

    IPC Global Partners · per analysis cycle

    IPC terms (to be recorded by Legal/IP)

    GRIx governed readregister row exists

  • USGS Water Data APIspending admission

    U.S. Geological Survey · 15-minute

    U.S. public domain

    GRIx governed readregister row exists

  • World Development Indicatorspending admission

    World Bank · annual with quarterly updates

    CC BY 4.0

    GRIx governed readregister row exists

  • AQUASTATpending admission

    Food and Agriculture Organization of the United Nations · annual

    CC BY 4.0 under the FAO Statistical Database Terms of Use

    build-time snapshotproposed register row

  • FAO GIEWS Food Price Monitoring and Analysis toolpending admission

    FAO GIEWS · monthly

    FAO terms of use; licence to be recorded by Legal

    build-time snapshotproposed register row

  • GIEWS FPMA food price monitoring toolpending admission

    Food and Agriculture Organization of the United Nations · monthly

    FAO database terms of use (to be confirmed)

    build-time snapshotproposed register row

05Standards that apply

8 Nexus Standards across 6 areas.

Standards that apply · Nexus Standards across, areas downFrom the registry
Listed, standard proposedListed, standard specified or openNot listedPROPOSED, SPECIFIED, OPEN, PLANNED and WIRED are registry words; none certifies conformance, readiness or equivalence.
31 listed of 48 pairs across 6 areas and 8 standards, from the area context bank (PROPOSED) and standards/INDEX.md.

Standards that applyA filled cell means the area's context entry lists that Nexus Standard. Context entries are PROPOSED; no cell is a conformance, certification or readiness statement.

07Readiness

What GCRI Canada and the two institutions read here.

GCRI Canada evidence pathway

GCRI Canada

Water risk standards · GCRI Canada may admit basin observation and forecast records that carry NS-3 record UNIs, station calibration history and stated licences as research evidence; GCRI Canada decides under its own evidence and research rules, and no…

Food and agriculture risk standards · GCRI Canada may admit food-security and market records that state analysis period, method version and source licence as evidence for food-system research; GCRI Canada decides under its own evidence and research rules, and no…

Agriculture and land use · Season monitoring, loss and trigger records carrying record UNIs, source releases and correction history are readable by the GCRI Canada evidence pipeline, which decides admissibility under its own rules.

3 more areas state what this pathway reads; each area page has its own line.

Open the GCRI Canada evidence pathway

Recognition pathway

The Global Risks Forum (GRF)

Water risk standards · GRF may record a basin authority's or utility's adoption of the water profiles as a dialogue item between riparian states; GRF decides under its own recognition rules, and no recognition or endorsement is implied.

Food and agriculture risk standards · GRF may convene producers, agencies and governments around shared trigger definitions as a recognition dialogue; GRF decides under its own recognition rules, and no recognition or endorsement is implied.

Agriculture and land use · A cooperative or ministry programme that publishes its trigger clauses and attestation history gives GRF a record trail to consider for recognition; no recognition is implied.

3 more areas state what this pathway reads; each area page has its own line.

Open the Recognition pathway

Capital pathway

The Global Risks Alliance (GRA)

Water risk standards · GRA may read service-continuity and water-stress records when it assesses resilience investment in utilities; GRA decides under its own capital-readiness rules, and no approval, rating or investment view is implied.

Food and agriculture risk standards · GRA may consider trigger and activation records when it reviews pre-arranged finance for food-security programmes; GRA decides under its own capital-readiness rules, and no approval, rating or investment view is implied.

Agriculture and land use · Index-insurance and blended-finance proposals can cite verified trigger provenance and loss series when GRA assesses capital readiness under its own criteria.

3 more areas state what this pathway reads; each area page has its own line.

Open the Capital pathway

Each institution decides under its own rules what it reads as evidence; no pathway is an approval, a readiness statement or investment advice.

08Working groups

6 working-group charters proposed, none chartered yet.

Each area proposes a working group with a scope, deliverables and liaison targets; a liaison is sought, never claimed, until the body confirms it in writing.

AreaWorking group scopeDeliverablesLiaison sought
Water risk standardsProfiles for hydrological observation, forecast and warning records and the water-energy-food cascade obligations, built on existing OGC and WMO encodings.34WMO Commission for Hydrology, OGC Hydrology Domain Working Group, UNECE Water Convention secretariat, UN-Water
Food and agriculture risk standardsRecords for food-security classification, market shocks and anticipatory-action triggers that interoperate with IPC and humanitarian data standards.34FAO Global Information and Early Warning System, IPC Global Support Unit, WFP, Agricultural Market Information System…
Agriculture and land useProfile the agricultural production, loss and trigger records the sector exchanges, and crosswalk them to food-safety, plant and animal health, tenure and nature-disclosure instruments without…35FAO Statistics Division, IPC Global Support Unit, IPPC Secretariat, World Organisation for Animal Health, TNFD
Water utilities and basinsProfile utility incident, asset-continuity and basin allocation records and crosswalk them to WHO water-safety guidance and transboundary water instruments.34World Health Organization (WASH), UNECE Water Convention secretariat, International Water Association, FAO AQUASTAT
Food security and nutrition riskRecords for food insecurity, nutrition and response.34IPC Global Support Unit, WFP, FAO, UNICEF
FAO and food securityDescribe FAO and partner systems accurately and develop open food-risk and trigger profiles built on their public data.23FAO Office of Emergencies and Resilience (information exchange sought; none recorded), IPC Global Support Unit…
09Contribute

Help build Water and Food Systems.

  1. 01

    Charter a working group

    Pick an area above, adopt its proposed charter and file it as a docket under NS-13; editors decide with written reasons. Develop a standard

  2. 02

    Correct or extend an area brief

    Every area entry is PROPOSED: a pull request against the area context bank names the change and its source, peer-reviewed or published statistics.

  3. 03

    Name a source

    Propose a feed with provider, licence and delivery path; Legal/IP records the terms and the owner decides admission. Agents never admit a source.

  4. 04

    Take part at the body

    Contribute to an external standard through its own body's channels; the outcome comes back here as a register change. Movement and contribution

10References

17 sourced references across the areas.

Peer-reviewed sources and published statistics as the area entries cite them, newest first within each type.

  1. peer-reviewedThe challenge of unprecedented floods and droughts in risk managementNature · 2022
  2. peer-reviewedFood production shocks across land and seaNature Sustainability · 2019
  3. peer-reviewedThe global burden of pathogens and pests on major food cropsNature Ecology & Evolution · 2019
  4. peer-reviewedUnderstanding Compound, Interconnected, Interacting, and Cascading Risks: A Holistic FrameworkRisk Analysis · 2018
  5. peer-reviewedFour billion people facing severe water scarcityScience Advances · 2016
  6. peer-reviewedAssessing the evolving fragility of the global food systemEnvironmental Research Letters · 2015
  7. peer-reviewedForecast-based financing: an approach for catalyzing humanitarian action based on extreme weather and climate forecastsNatural Hazards and Earth System Sciences · 2015
  8. peer-reviewedThe climate hazards infrared precipitation with stations - a new environmental record for monitoring extremesScientific Data · 2015
  9. peer-reviewedGloFAS - global ensemble streamflow forecasting and flood early warningHydrology and Earth System Sciences · 2013
  10. peer-reviewedGlobal threats to human water security and river biodiversityNature · 2010
  11. peer-reviewedIdentifying, understanding, and analyzing critical infrastructure interdependenciesIEEE Control Systems Magazine · 2001
  12. published statisticsThe State of Food Security and Nutrition in the World 2024FAO, IFAD, UNICEF, WFP and WHO · 2024
  13. published statisticsThe Impact of Disasters on Agriculture and Food Security 2023FAO · 2023
  14. published statisticsGuidelines for drinking-water quality: fourth edition incorporating the first and second addendaWorld Health Organization · 2022
  15. published statisticsLifelines: The Resilient Infrastructure OpportunityWorld Bank · 2019
  16. published statisticsSendai Framework for Disaster Risk Reduction 2015-2030UNDRR · 2015
1 more references
  1. standardIntegrated Food Security Phase Classification Technical Manual Version 3.1IPC Global Partnership · 2021
11Risk standards and library

10 risk standards and the library.

The Nexus Risk Standards read in Water and Food Systems and its library: scope, codes, schemas, conformance, governance, templates, crosswalks, change log and how to contribute.

12Learn and apply

Where Water and Food Systems is taught, worked on and run.

Risk Academy disciplines that teach Water and Food Systems, with their courses; the GCRI Canada, The Global Risks Forum (GRF) and The Global Risks Alliance (GRA) subsites that carry those disciplines; and the Nexus Foundry systems the standards name. Mappings are proposed for review (Risk Academy standards map, 2026-10-17); a link says a page on the same subject exists, never an endorsement or a conformance statement; framework names in course titles are named and linked, never reproduced.

Risk Academy

Disciplines and courses

13Questions

Questions and answers.

Is Water and Food Systems a live subsite?
The owner created it in WordPress; its pages publish as drafts once the owner gives the go. The name is owner-confirmed.
Where do the areas come from?
From the area context bank, one PROPOSED entry per area written as an expert would brief a working group, sourced to published statistics and peer-reviewed references; the Nexus Standards lane owns the canonical registry.
Are any feeds live here?
No. Every feed reads pending admission until an owner decision admits it for public pages.
Nexus Standards

Build Water and Food Systems with us.

Charter a working group, correct a brief or name a source. Area entries are PROPOSED content for the Nexus Standards registry; a UNI identifies and never certifies, and nothing on this site is a certification, an approval or a readiness statement.

Nexus Standards documents CC BY 4.0 · tooling Apache-2.0 · counsel review pending (DEC-2026-10-16-NEXUS-STANDARDS-OPEN-LICENCE). External standards are named and linked under their own licences; a UNI (Unique Nexus Identifier) identifies, it never certifies. · Generated from the Nexus Standards corpus at commit 437ae044c5cb (2026-10-17); proposed and open.

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