The Global Centre for Risk and Innovation (GCRI)
The Nexus cycle in Water Nexus: question, evidence, build, organize, test, publish, decide and renew, with the page and owner of each step.
Flood season readiness · Day 5 of 5 · Controlled · observed
| Water utility | 5 | 27 | Delayed |
| Irrigation board | 3 | 22 | Delayed |
| Environment regulator | 5 | 38 | Responding |
| Civil protection | 6 | 58 | Responding |
Water Nexus · Exercise controlExercise control, in outline: domain structure with placeholder names and illustrative values, not a record.
The Nexus cycle in Water Nexus is the eight-step path by which a question in the water field becomes evidence, a Foundry build, an organized community, a controlled test, a publication and a decision taken by the competent authority. Here the evidence step rests on hydrology and water science as well as water and environmental engineering, and findings feed Global Sector Risk and Resilience.
Fig.A programme from scoping to the owner's decision. Design, not a record.
For how work moves in this field, in GCRI's spatial-intelligence reading, the map opens on night lights, population density and true-colour imagery with relief in 3D, framed on the Nile Basin; every other NASA layer, live feed and forecast waits in the layer list.
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For how work moves in this field, in GCRI's spatial-intelligence reading, the map opens on night lights, population density and true-colour imagery with relief in 3D, framed on the Nile Basin; every other NASA layer, live feed and forecast waits in the layer list.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.
Layers and dates
In Water Nexus a cycle usually starts with a basin authority's allocation or drought question, draws its evidence from gauges, reanalysis and satellite storage, is built as a basin water balance in Nexus Foundry, is exercised in a drought-and-power scenario and returns as a decision on rules or investment that the basin authority takes.
| Step | Owner |
|---|---|
| Question | National, regional or institutional priority |
| Evidence | STEM foundation of the platform |
| Build | Nexus Foundry |
| Organize | Nexus Ecosystem: community, chapters, councils, national cells |
| Test | Nexus Universe (independent site) |
| Publish | Nexus Reports |
| Decide | Competent authorities and institutions, through Nexus Rails |
| Renew | Corrections and the next annual agenda |
Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.
| Term | Definition |
|---|---|
| Nexus cycle | The eight-step loop by which work moves in every Nexus field: question, evidence, build, organize, test, publish, decide and renew, each step with a named owner. |
| Competent authority | The body that a law or regulation designates to exercise a given power or duty, such as a supervisor, a civil protection agency or a ministry; only it can take the decisions the law assigns to it. |
| Peer review | Evaluation of a work by independent experts in the field before publication. |
| Environmental flows | The quantity, timing and quality of freshwater flows needed to sustain river, wetland and estuarine ecosystems and the livelihoods that depend on them. |
The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.
The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.