Floods, storms, droughts, heat and cold account for most disaster events and a large share of losses, and their forecastability makes them the backbone of early warning and anticipatory action. This section of the Hazards and Disaster Risk Reduction subsite sets records for observations, ensemble forecasts, hazard events and warnings aligned to WMO cataloguing and CAP so that forecasts, impact-based warnings and triggers cite the same event identifier and forecast version. Every artifact of the area carries a UNI (Unique Nexus Identifier), which identifies and never certifies.
Nexus Standards (2026). Hydrometeorological hazard standards: area brief, Hazards and Disaster Risk Reduction (PROPOSED). https://nexustandards.com/hazards/hydrometeorological-hazard-standards/. Last reviewed 2026-10-17.
Files carry the credits and the licence line; they are generated in your browser and nothing is sent. Downloads need script.
The hazard and threat families section of Hazards and Disaster Risk Reduction. Scope as the area context entry states it (PROPOSED).
In scope 5
Out of scope 3
Jurisdictions No jurisdiction note is recorded for this area yet; jurisdiction narrows what applies and never implies that a Nexus profile satisfies a law.
Hazards and threats 5
Sectors 4
Sources the area reads or proposes. Delivery follows GRIx first; a source is shown live only after an owner decision admits it for public pages.
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.
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
ECMWF open data (IFS and AIFS real-time forecasts)pending admission
ECMWF · four times daily
CC BY 4.0 under the ECMWF terms of use
GRIx governed readregister row exists
ERA5 reanalysis (Copernicus Climate Data Store)pending admission
Copernicus Climate Change Service (ECMWF) · daily, five-day latency
CC BY 4.0
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
NWS API active alerts (CAP 1.2 as GeoJSON)pending admission
NOAA National Weather Service · real time
U.S. Government work, public domain
GRIx governed readregister row exists
Relations are register entries (NS-14), never conformance or equivalence statements; hover or focus a relation for its meaning. Names of standards bodies and their standards belong to their stewards and are used only to identify the documents; no text of an external standard is reproduced here.
adopt4
WMO Cataloguing of Hazardous Events (WMO-CHE)World Meteorological Organizationregister · wmo-cataloguing-of-hazardous-eventsCommon Alerting Protocol Version 1.2OASIS Emergency Management TCregister · oasis-cap-1-2CF Metadata ConventionsCF Conventions communityproposed register rowUNDRR-ISC Hazard Information ProfilesUNDRR and International Science Councilregister · undrr-isc-hazard-information-profilesWorked package: CAP 1.2: process, clause map, crosswalk, adoption, channels, deploy cards, updates
Each coupling names the mechanism that links this area to another; select a card on the canvas to trace it. Mechanisms are stated in the context bank (PROPOSED).
Fig.RUNNING marks the area you are reading; DONE an area in the same subsite, QUEUED an area elsewhere and GATE a subsite reached. Tags give reading order only, never a status. Design, not a record.
Closed or paywalled standards appear by name and link only; any compatibility profile of one is built on simulated data and kept on protected pages until an institutional arrangement with the issuing body is recorded. Nexus Standards is not affiliated with, endorsed by or certified by any standards body named here.
Indicator names and codes as their stewards publish them; values appear only from a governed GRIx source, never typed into a page.
The Nexus Standards the area context entry lists; the registry row lists NS-0, NS-3, NS-3b, NS-11. Every one is proposed or specified; none is adopted by an authority.
Status proposed · 12 rules stated. Read NS-0 · The rules for this area
Status proposed · 0 rules stated. Read NS-3 · The rules for this area
Status proposed · 0 rules stated. Read NS-3b · The rules for this area
Status proposed · 6 rules stated. Read NS-11 · The rules for this area
Version and feed state per standard; every row reads source feed pending admission until a register row admits a feed.
Today · in your browserPick a sector, hazard family, capability and artifact type; the registry routes the standards and says why.
Today · from the registryTest suites, conformance statements and attestations per standard; no attestation is recorded yet, and none would certify.
A console computes from the registry and shows its reasons; it never decides, approves or certifies.
GCRI Canada may admit forecast and warning records with forecast version, ensemble size and verification scores as research evidence; GCRI Canada decides under its own evidence and research rules, and no approval is implied.
GRF may record national meteorological and hydrological services publishing on the shared profiles as part of the Early Warnings for All dialogue; GRF decides under its own recognition rules, and no recognition or endorsement is implied.
GRA may read hazard and verification records when it reviews parametric and pre-arranged finance tied to these hazards; GRA decides under its own capital-readiness rules, and no approval, rating or investment view is implied.
Each institution decides under its own rules what it reads as evidence; no pathway is an approval, a readiness statement or investment advice.
Observation, forecast, event and warning records profiled on WMO and OASIS standards.
No working group is chartered yet; a community may charter this one under NS-13 through a docket.
This area has a row in registry/subsites.yaml (status planned), so it carries five depth pages and the register crosswalk of its domains.
The rules of each listed standard, read through the specification reader.
Depth · CrosswalkEvery register entry in the area's domains, by relation, with the crosswalk graph.
Depth · Records and schemasScope, record, schema explorer and how a UNI resolves.
Depth · ConformanceClauses, evidence and attestations; no step is a certification.
Depth · ReadinessThe area beside the three pathways, as a matrix.
Depth · Open standardsEvery register entry of the area's domains; 1 package built.
4 Nexus Standards · 4 domains · 35 external standards · 27 issuing bodies · 1 consumers. Relations are register entries (adopt, profile, crosswalk, cite), never compliance claims; names belong to their stewards.
Crosswalk graph71 nodes and 89 links from registry/external-standards.yaml, registry/subsites.yaml and registry/consumers.yaml. Relations (adopt, profile, crosswalk, cite) are register entries, never compliance claims.
The registry holds no geography for the area itself: areas are not places. The one geography it implies is where the bodies that issue the area's external standards sit.
| Body | Seat | Register entries |
|---|---|---|
| ISO/TC 224 | Geneva, Switzerland | 4 |
| OASIS Emergency Management TC | Woburn, Massachusetts, United States | 3 |
| GHG Protocol | Washington, District of Columbia, United States | 2 |
| ISO/TC 207/SC 7 | Geneva, Switzerland | 2 |
| WMO | Geneva, Switzerland | 2 |
| European Commission Joint Research Centre | Ispra, Italy | 1 |
| European Commission Joint Research Centre with the Inter-Agency Standing Committee | Ispra, Italy | 1 |
| IFRC | Geneva, Switzerland | 1 |
| Intergovernmental Panel on Climate Change | Geneva, Switzerland | 1 |
| International Sustainability Standards Board (IFRS Foundation) | Frankfurt, Germany | 1 |
| ISO/TC 292 | Geneva, Switzerland | 1 |
| ITU-T | Geneva, Switzerland | 1 |
| Network for Greening the Financial System | Paris, France | 1 |
| Science Based Targets initiative | London, United Kingdom | 1 |
| UN Member States (Third UN World Conference on DRR); UNDRR custodian | Geneva, Switzerland | 1 |
| UNDRR | Geneva, Switzerland | 1 |
| UNDRR and International Science Council | Geneva, Switzerland | 1 |
| UNDRR, UNDP and WMO | New York, New York, United States | 1 |
| UNECE (Water Convention) with partners including FAO | Rome, Italy | 1 |
| WMO (adopted by Congress 2019) | Geneva, Switzerland | 1 |
| WMO and UNDRR | Geneva, Switzerland | 1 |
| WMO, UNDRR, ITU, IFRC (co-leads) | Geneva, Switzerland | 1 |
| World Resources Institute and WBCSD (GHG Protocol) | Washington, District of Columbia, United States | 1 |
1 subsites: no geography in the registry (areas, not places) · 2 consumers: repositories, no geography · 19 Nexus Standards: documents, no geography · 4 issuing bodies without a fixed public seat, listed not drawn: IOC-UNESCO Global Ocean Observing System; Global Facility for Disaster Reduction and Recovery; UNFCCC; Global Alliance for Disaster Risk Reduction and Resilience in the Education Sector · Programme regions of the ecosystem coverage register: named, not drawn (no coordinates in the registry)
Standards globe23 issuing bodies with a public seat, 35 register entries, H3 cells at resolutions 1 to 4. Seats are city coordinates, not registry fields; subsites, consumers and standards have no geography, so none is drawn. Plate carrée still map; globe with script.
| Area on the sites | Artifact kinds | Governing standards | Pages |
|---|---|---|---|
| Floods | data, dataset, model, map, report | NS-1, NS-3, NS-3b, NS-5 | therisk.global/challenges/ |
| Droughts | data, dataset, model, map, report | NS-1, NS-3, NS-3b, NS-5 | therisk.global/challenges/ |
| Cyclones and storms | data, dataset, model, map, report | NS-1, NS-3, NS-3b, NS-5 | therisk.global/challenges/ |
| Heat | data, dataset, model, map, report | NS-1, NS-3, NS-3b, NS-5 | therisk.global/challenges/ |
| Wildfire | data, dataset, model, map, report | NS-1, NS-3, NS-3b, NS-5 | therisk.global/challenges/ |
From the ecosystem coverage register: what the GCRI Canada, The Global Risks Forum (GRF) and The Global Risks Alliance (GRA) sites publish on this area, as claimed there and not evaluated here.
Peer-reviewed sources and published statistics on the publishers' own domains, as the context entry cites them. No Risk Academy faculty pathway is linked to this area yet; one is linked when a faculty publishes a pathway that fits.
Risk Academy disciplines that teach Hydrometeorological hazard standards, 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.
Propose a change, join the working group 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.