R03 · PROCESS · nexus-universeGRF dossier · service level R0
GRFPolicy NexusEstablished
Nexus Universe

Annual programme contribution

How Policy Nexus takes part in Nexus Universe, the annual programme governed by GRF, with its own website at universe.nexus.

Publisher
The Global Risks Forum
Field
Policy, Governance and institutions, Risk management and systemic risk
Status
Established
Service level
R0: information and enquiries

Action week

Nexus Universe · Policy · Week 29

Week plannedGRF · Policy Nexus

Tracks

controlled sessions

MonTueWedThuFri0910111213141516Options appraisal workshopImplementation reviewConsultation designEvaluation planningStand-down and hot washObserver briefing

Observer notes

  1. O-1Escalation path unclear between cellsTrack 19 h
  2. O-2Data hand-off worked as designedTrack 22 h
  3. O-3Public message drafted before verificationTrack 39 h

Policy Nexus · Action weekAction week, in outline: domain structure with placeholder names and illustrative values, not a record.

01In brief

The short answer.

Policy Nexus in Nexus Universe is the platform's part in the annual programme GRF governs, through mission themes such as policy options under scenario. Themes are proposals; confirmed exercises are announced on universe.nexus, and results are published with their limits after review.

02Canvas

Scoping to review.

Canvas · scoping to reviewDesign, not a record
Annual programme contribution: a programme through its gatesA request with a named owner becomes a scoping note; inputs are qualified at a gate; delivery runs in workstreams; a controlled test and an independent review precede publication; the owner decides. Design of the process, not a record of a run.

Fig.A programme from scoping to the owner's decision. Design, not a record.

03Geography

People and hazards in Africa.

For annual programme contribution, in GRF's situational-awareness reading, the map opens on population density, night lights and flood water, framed on Africa; every other NASA layer, live feed and forecast waits in the layer list.

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

Layers 3

People and hazards, for this page

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.

For annual programme contribution, in GRF's situational-awareness reading, the map opens on population density, night lights and flood water, framed on Africa; 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.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · GDACS · NASA EONETSources 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
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); 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
  • NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles 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.
  • Live: GDACS (EC JRC / UN OCHA) Events are indicative, not official warnings.
  • Live: NASA EONET Events are indicative, not official warnings.
  • 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

  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • Active fires and thermal anomalies, last day: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026

04Themes

What this platform brings.

  1. 01

    Policy options under scenario

    A mission theme proposed for the annual programme.

05Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
Mission themeA subject a platform proposes for controlled testing in the annual Nexus Universe programme; a theme is a proposal until the programme confirms an exercise.
Full-scale exerciseAn operations-based exercise in which agencies deploy people and equipment in real time against a scenario.
After-action reviewA structured review of what was planned, what happened and what should change, held after an exercise or real event.
Simulation exerciseA practice, training or evaluation activity in which an emergency is described or simulated and participants respond as they would in reality, so that plans and capacities can be tested, as WHO's exercise manual describes.
06Gateway

Follow the programme.

The GRF gateway explains the programme's governance, and universe.nexus is its own site.

07Questions

Questions and answers.

Is a theme a confirmed exercise?
No. Themes are proposals; confirmed exercises are announced on the Nexus Universe website.
Policy Nexus

Bring your expertise to this field.

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.

Have questions?