GCRI · Space and Earth Observation

Space and Earth Observation

Space systems and the Earth-observation technologies used for risk intelligence and sustainable development. Space and Earth Observation is an established platform of The Global Centre for Risk and Innovation.

STEM methods
7
Canonical methods this field applies
Topics
8
Subject pages in the field
Counterparts
7
Platforms in shared fields across the network
Report series
2
Reports series it contributes to
01What the platform does

Method, evidence and resilience for space-based services.

Space and Earth Observation is designed to publish Earth observation method guides, land and ocean observation cases and space-system risk briefs. Its methods combine satellite data science, Earth observation models and attention to uncertainty and rights. It is distinct from the Earth observation platform (EOP) in Foundry, which renders shared Earth observation data across the Consortium; this platform is the research community behind the methods.

Measure

Sensors and products

How each sensor type sees the Earth, what it can and cannot measure, and how products are validated against ground observation.

Apply

Evidence for decisions

Water, agriculture, ecosystems and disasters: how satellite evidence is used, where it adds most and where it is weakest.

Protect

Space system resilience

The vulnerabilities of satellites, ground segments, navigation and communications, and the stewardship of orbital space.

02Monitor

EO tasking and products.

The screen a team would use to follow this field: its measures, states and decisions. Names are examples and values are illustrative.

EO tasking and products

Flood basin AOI · Activation ACT-610

Rapid mappingGCRI · Space and Earth Observation

Passes over the area

next 8 passes

SAT-1SAT-2SAT-3SAT-4Swath over the area of interestN

Acquisitions

P-1Radarn/aProcessed
P-2Optical91Cloudy
P-3Radarn/aDownlinking
P-4Optical18Scheduled

Product chain

  1. TaskAOI
  2. Acquireradar
  3. Downlinkstation 2
  4. ProcessARD
  5. Map floodchange
  6. Validatesamples
  7. Deliveruser agency
EO tasking and products: the screen’s structure, terms and states for Flood basin AOI.Example names and illustrative values; a design, not a record or a live system.
04Simulator

Stocks, flows, delays and a tipping threshold.

Two stocks, pressure and adaptive capacity, joined by a reinforcing growth loop, a delayed balancing response and damage when pressure outruns capacity; past the threshold the system can tip. Teaching model with stated illustrative values, not a prediction. The map on this page shows The Arctic; the model itself is not tied to a place.

Controls

Growth of pressure
6.0% a year
Efficacy of capacity in reducing pressure
4.0% a year
Investment response to perceived pressure
20%
Perception delay
4.0 years
Tipping threshold of pressure
60 index
Amplification past the threshold
2.0 times
Years simulated
50 years

Readouts

Peak pressure
113 index
Capacity at the end
186 index
Years over the threshold
15.8 years
Numbers, methods and sources
YearPressureCapacityPerceived
020.050.020.0
423.344.921.2
827.242.224.0
1231.742.327.7
1636.845.532.2
2042.351.537.2
2447.960.342.6
2853.271.348.0
3257.884.353.1
3666.498.458.4
4082.7115.969.7
4497.8139.783.8
48109.1169.497.3

Methods

  1. System dynamics Forrester (1961), Industrial Dynamics, MIT Press; Sterman (2000), Business Dynamics
  2. Critical transitions and tipping points Scheffer and others (2009), Early-warning signals for critical transitions, Nature 461
  3. Causal loop diagram Sterman (2000), Business Dynamics, McGraw-Hill
  4. Uncertainty fan (parameter Monte Carlo) Spiegelhalter, Pearson and Short (2011), Visualising uncertainty about the future, Science 333
  5. One-at-a-time sensitivity (tornado) Saltelli and others (2008), Global Sensitivity Analysis: The Primer, Wiley

Data

No observed data enters this model: it runs on the teaching values set by the controls, to be replaced with a programme’s own evidence.

Stocks, flows, delays and a tipping threshold. Illustrative teaching model: it runs on the values set by the controls, not on measured data. Methods: System dynamics (Forrester (1961), Industrial Dynamics, MIT Press; Sterman (2000), Business Dynamics); Critical transitions and tipping points (Scheffer and others (2009), Early-warning signals for critical transitions, Nature 461); Causal loop diagram (Sterman (2000), Business Dynamics, McGraw-Hill).
05Overview

What Space and Earth Observation does.

Earth observation is the gathering of information about the planet’s surface, water and atmosphere from satellites and aircraft. Space and Earth Observation covers sensors, analysis-ready evidence, space system resilience, communications and navigation, water and agriculture, disaster monitoring, debris and geospatial governance. Space agencies, operators and mapping authorities decide.

Who it serves

Its community

Remote-sensing scientists; space engineers; geospatial analysts; disaster scientists.

How it works

Its methods

Satellite data science; EO models; uncertainty and rights.

What it produces

Its outputs

EO method guides; land/ocean observation cases; space-system risk briefs.

06Twin and cascade simulator

Model Space and Earth Observation as a system. Run the cascade.

Assembled from the Nexus Standards area profile Climate risk standards: the hazards it names, the systems and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full System Builder.

Hazards

  • Sea-level rise
  • Coastal flood (set off downstream)
  • Storm surge (set off downstream)
  • High-tide flooding (set off downstream)
  • Coastal erosion (set off downstream)
  • Saltwater intrusion (set off downstream)
  • Estuary flood (set off downstream)
  • Coastal habitat squeeze (set off downstream)
  • Wetland loss (set off downstream)
  • Mangrove loss (set off downstream)
  • Groundwater flood (set off downstream)
  • Climate-driven migration and relocation (set off downstream)
  • Mass displacement (set off downstream)

Controls

  • NS-0 Constitution and principles
  • NS-1 The UNI and the artefact catalogue (grammar v0.2: domain, sector, region and environment segments)
  • NS-3 Risk record UNIs (grammar, legacy crosswalk, allocation authority)
  • NS-3b Dataset and product metadata profile (STAC, DCAT, PROV-O)
  • NS-9 Contextual UNIs (deployments, instances, programme instances)
  • NS-11 Verification and monitoring (evidence, attestations, zero-trust conformance observation)
  • NS-14 Conformance and crosswalk to external standards
  • NRS-H65 Hazard family: Planetary boundary transgressions (NHS-1 planet.boundary)
  • NRS-H62 Hazard family: Compound and multi-hazard events (NHS-1 sys.compound)
  • NRS-H71 Hazard family: Deep-time and cosmic catastrophes (NHS-1 planet.deep-time)
  • NRS-H79 Hazard family: Mental health crises (NHS-1 health.mental)
  • NRS-H75 Hazard family: Climate-sensitive illness (NHS-1 health.climate-sensitive)
  • NRS-H7 Hazard family: Large-scale circulation anomalies (NHS-1 atmo.climate-mode)

Observation

  • ERA5 reanalysis (Copernicus Climate Data Store) (listed for reference)
  • CMIP6 climate projections (Copernicus Climate Data Store) (listed for reference)
  • NGFS Scenario Explorer (listed for reference)
  • INFORM Risk Index (listed for reference)
  • Number of deaths, missing persons and directly affected persons attributed to disasters per 100,000 population
  • Total greenhouse gas emissions per year
  • Direct economic loss attributed to disasters in relation to global GDP

Example geography

  • Pacific Island states: 150 hexagonal cells
  • Night lights tonight, outages (VIIRS Day/Night Band), NASA GIBS
  • Surface water through cloud, 30 m (OPERA DSWx-S1 radar), NASA GIBS
  • Rain rate, last half hour (IMERG), NASA GIBS
  • Vegetation disturbance alerts, 30 m (OPERA DIST-ALERT), NASA GIBS
07Mandate and boundaries

What Space and Earth Observation studies, and who governs space.

Space and Earth Observation, studies the satellites and ground systems that observe the planet and position and connect people, and the risks to those systems in orbit. Space agencies, operators, spectrum regulators and mapping authorities decide; GCRI operates no satellite and orders no acquisition as an authority.

Imagery and orbit illustrations here are examples; imagery products keep their providers’ licences.

08Methods and evidence

How Space and Earth Observation is modelled, measured and tested.

The model, its assumptions, its data and its uncertainty, in the form a scientist or engineer would check. Structures follow published methods. The values drawn are illustrative, not findings.

Earth observation chain

How a satellite or sensor record becomes evidence on Space and Earth Observation, and where each step adds uncertainty.

  1. 01 · Acquireorbit, sensor and revisitUncertainty: gaps from cloud and orbit
  2. 02 · Calibrateradiometric and geometricUncertainty: sensor drift
  3. 03 · Correctatmosphere and terrainUncertainty: aerosol and slope assumptions
  4. 04 · Retrieve or classifythe variable or the classUncertainty: model and training error
  5. 05 · Validateagainst ground truthUncertainty: sample design and size
  6. 06 · Publishwith error bars and lineageUncertainty: stated, never hidden
Processing chain in the CEOS Analysis Ready Data sense; each step records its uncertainty before a figure is drawn. A generic structure, not results.

Datasets and provenance

The data classes behind Space and Earth Observation and what is recorded about each before it is used.

Data classProvenance recordedResolution statedLicence checked
Satellite imagery, optical and radarsensor, processing level, acquisition datepixel size and revisitper scene
Reanalysis and climate model outputmodel, experiment, member, versiongrid and time stepper release
In-situ sensors and gaugesstation, instrument, calibration recordpoint and sampling rateper network
Population and asset exposuremethod, vintage, input sourcescell size and unitper release
Boundaries and reference geographyproducer, edition, datescaleper edition
Lineage
W3C PROV record from source to figure
Principles
FAIR: findable, accessible, interoperable, reusable
Gaps
shown as missing, never filled silently
Data classes and the provenance fields recorded for each; a dataset is listed by name only once its licence admits the use.
FAIR guiding principles · GO FAIR and FORCE11W3C PROV · World Wide Web ConsortiumGuidance on consistent treatment of uncertainties · IPCCCEOS Analysis Ready Data · Committee on Earth Observation Satellites
10Geography

Earth observation in the Arctic.

Land cover and vegetation over the Arctic, from NASA GIBS. Each layer carries its own date.

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

Layers 2

Earth observation, for this page

About this layer
Evidence
Observed
Source
VIIRS NOAA-20 corrected reflectance (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite image
Newest at build
2026-10-14
Resolution
about 250 m grid
Uncertainty
Satellite image. Satellite or model raster as the provider publishes it. Clouds, swath gaps and retrieval error leave gaps and noise; values are indicators, not measurements at a place.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Modelled (latest year GIBS publishes)
Source
MODIS Terra and Aqua land cover (MCD12Q1) (NASA LP DAAC)
Provider
NASA LP DAAC
Licence
NASA open data
Vintage
yearly; Satellite classification; latest year GIBS publishes
Newest at build
2024-01-01
Resolution
about 500 m grid
Uncertainty
Satellite land cover classes for the year shown, including croplands; a classification with known errors, not a farm register.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed (clouds leave gaps)
Source
MODIS Terra EVI (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite index; clouds leave gaps
Newest at build
2026-10-13
Resolution
about 250 m grid
Uncertainty
Satellite vegetation index for the 8 days to the date shown, a habitat condition indicator; not a measure of species or biodiversity.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Estimated
Source
Gridded Population of the World v4.11 (NASA SEDAC (CIESIN, Columbia University))
Provider
NASA SEDAC (CIESIN, Columbia University)
Licence
CC BY 4.0
Vintage
null; Census-based estimate, static (2020)
Resolution
about 1 km grid
Uncertainty
Census-based estimate of people per square kilometre in 2020, shown as exposure context; not a count of people affected by any hazard.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed (clouds leave gaps)
Source
MODIS Terra NDVI (NASA LANCE)
Provider
NASA LANCE
Licence
NASA open data
Vintage
daily; Satellite index; clouds leave gaps
Newest at build
2026-10-13
Resolution
about 250 m grid
Uncertainty
Satellite greenness index over the 8 days to the date shown; an indicator of crop and pasture condition, not a yield estimate or a food security warning.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map
About this layer
Evidence
Observed
Source
VIIRS Black Marble (VNP46A2) (NASA LAADS DAAC)
Provider
NASA LAADS DAAC
Licence
NASA open data
Vintage
daily; Satellite radiance, corrected for moonlight and atmosphere
Newest at build
2026-10-12
Resolution
about 500 m grid
Uncertainty
Satellite night-time radiance for the date shown; lights are a proxy for electricity use and outages, not a measurement of supply or access.
Reached through
gibs.earthdata.nasa.gov, only after you allow the live map

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.

Earth observation, framed on the Arctic.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · U.S. Geological Survey · NASA JPL OPERA DIST-ALERTSources 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 hexagonal 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 hexagonal 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 hexagonal cells where shown (modified). NASA open data
  • MODIS land products (vegetation indices, gross primary production, land cover), NASA LP DAAC and LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into hexagonal 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 hexagonal cells where shown (modified). doi:10.7927/H49C6VHW. 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 hexagonal 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 hexagonal cells where shown (modified). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. 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 hexagonal cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into hexagonal 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.
  • Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
  • Live: NASA EONET Events are indicative, not authority warnings.
  • Live: U.S. Geological Survey Events are indicative, not authority warnings.
  • Observed (EO): NASA JPL OPERA DIST-ALERT (contains modified Copernicus Sentinel data 2026). 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).
  • NASA GIBS: 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).
  • Past year, daily temperature and sunshine (NASA POWER): These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program..
  • Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
  • Optional layers (11 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

  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
  • Land cover type (IGBP), yearly: MODIS Terra and Aqua land cover (MCD12Q1), NASA LP DAAC · 2024
  • Enhanced vegetation index, rolling 8 days: MODIS Terra EVI, NASA LANCE · 13 Oct 2026
  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Vegetation greenness (NDVI), rolling 8 days: MODIS Terra NDVI, NASA LANCE · 13 Oct 2026
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026

11Reports, standards and contributions

Where space evidence goes.

Earth-observation evidence is designed for the Observatory Signal series; space system resilience for the Strategic Systems series. Products would carry NS-3b metadata under the proposed Nexus Standards.

  • Agencies can share validation data.
  • Field teams can contribute reference observations.
  • Researchers can contribute debris and space weather studies.
12The problem

A dependency in orbit, and evidence from above.

Satellites observe the whole planet repeatedly. Optical, radar, thermal and other sensors record floods through cloud, crop condition across continents, sea-surface temperature, forest loss, urban growth and the ground deformation that can precede landslides. For many places, satellite data is the only consistent record of environmental change, and it has become central to weather forecasting, climate monitoring, disaster response and resource management.

That evidence is powerful and easily misread. A satellite measures radiation reflected or emitted from the surface, not the quantity a decision-maker cares about. Turning measurements into maps of flooded area, crop yield or damage requires models, calibration and ground truth, each with errors that vary by place, season and sensor. Products with very different accuracy can look equally authoritative on a screen. Without stated uncertainty and validation, satellite evidence can mislead the decisions it is meant to inform.

Society also depends on space in a second way. Satellite navigation provides the timing signals used by telecommunications networks, power grids and financial systems, as well as positioning for transport and agriculture. Satellite communications connect remote areas, ships, aircraft and disaster zones. These services can fail through space weather, interference, cyber attack, ground-segment faults or collisions in increasingly crowded orbits, and a failure can cascade into systems on the ground that have no obvious link to space.

14Coverage

The areas of space and Earth observation this platform takes on.

Space and Earth Observation studies the satellites, ground systems and data that observe the planet and connect and position people on it, and the risks to those systems in orbit. Its pages set out how Earth observation sensors work, how space-based evidence is made reliable, how it serves water, agriculture and disaster monitoring, and how space systems, debris and geospatial data are governed, with every value labelled by its evidence and every limit stated. It prepares evidence; space agencies, operators and mapping authorities decide.

Area

Earth observation sensors

Optical, radar, thermal, lidar and atmospheric instruments, and what each can and cannot see.

Area

Spatial and temporal evidence

Turning images into consistent, analysis-ready records with known accuracy over space and time.

Area

Space system resilience

Threats to satellites and ground segments from space weather, failures, interference and attack.

Area

Communications and navigation

Satellite communications and navigation and timing services that society increasingly depends on.

Area

EO for water and agriculture

Satellite evidence on rainfall, soil moisture, crops, water bodies and irrigation.

Area

Disaster monitoring

Mapping floods, fires, earthquakes and storms from space, and getting imagery to responders.

Area

Space debris and sustainability

Debris, congestion and collision risk in orbit, and the rules that aim to keep orbits usable.

Area

Geospatial governance

National spatial data infrastructures, standards, licensing and the rights around geospatial data.

15Grounding

Built on named science, technology, engineering and mathematics.

Every claim on Space and Earth Observation rests on methods with a canonical page in the STEM Commons, so readers can see what a finding depends on and where its limits lie.

Earth observation and remote sensingSpace systems and satellite servicesGeospatial information systemsSpatial statistics and geostatisticsHigh-performance, cloud and edge computingCommunications and network technologyPhysics and quantum science

See the STEM foundation of Space and Earth Observation

16Cycle

How work moves in this field.

A question becomes evidence, a governed build, an organised community, a controlled test, a reviewed publication and, finally, a decision taken by the competent authority under its own rules.

  1. Question Universe National, regional or institutional priority. Question in Space and Earth Observation
  2. Evidence Foundry STEM foundation of the platform. Evidence in Space and Earth Observation
  3. Build Foundry Foundry. Build in Space and Earth Observation
  4. Organise Universe Nexus ecosystem. Organise in Space and Earth Observation
  5. Test Universe Universe (independent site). Test in Space and Earth Observation
  6. Publish Reports Reports. Publish in Space and Earth Observation
  7. Decide Competent authority Competent authorities and institutions, through NXS-RLS (participants, agreements and handoffs). Decide in Space and Earth Observation
  8. Renew Universe Corrections and the next annual agenda. Renew in Space and Earth Observation

Each step of the cycle in the pillar it runs in; the decision stays with the competent authority, outside the programme.

17Six pillars

How this works across the six pillars.

Space and Earth Observation works through six pillars of one annual programme, led by the Nexus Consortium, with GCRI, the Global Risks Forum (GRF) and the Global Risks Alliance (GRA) each contributing in its role: explore, experiment and prototype in Labs, build, simulate and prepare in Foundry, convene and test in Universe, codify, correct and apply in Nexus Standards, publish in every format in Reports, teach in the open in Risk Academy.

Select pillars · hover lines18 / 18 handoffs

Route

The whole programme

Every pillar hands its work to another; together they close the year’s feedback loops.

L · F · U · S · R · A

Pillars
6 of 6
Handoffs
18 of 18
Loops
17 closed

Handoffs in play

  • F01Universe → Foundry · Admitted mission becomes a cycle project with a decision caseReadiness preparation
  • F02Foundry → Universe · Core Build Report and go or no-go evidenceControlled build
  • F03Foundry → Reports · Sealed observations and indicator series behind a profileCloseout
  • F04Universe → Reports · After-action and scenario findings for chapters 10 and 13After-action review

and 14 more

F01 to F14 are the recorded handoffs of the programme year, each with the artefact that moves and its phase; R1, R2, R3 and R4 carry work around the ring. A loop counts when every pillar on it is selected. Every pillar is led by the Nexus Consortium.
  1. LabsWhere questions become experiments and prototypes: new methods, data and tools are tried in the open, with their limits on record, before the Foundry builds them, under the Nexus Consortium.Labs
  2. FoundryWhere methods, data and models become reproducible builds, each run with its inputs, version and limits on record.Space and Earth Observation in FoundryFoundry
  3. UniverseWhere a build is tested under controlled conditions with independent evaluators, so a method’s skill is measured, not assumed.Space and Earth Observation in Universeuniverse.nexus
  4. Nexus StandardsWhere methods, identifiers and data schemas are codified in the open and corrected when a test finds a fault.Space and Earth Observation in Standardsnexustandards.com
  5. ReportsWhere findings are published with their method, uncertainty and evidence class, and corrected as new versions.Space and Earth Observation in ReportsReports
  6. Risk AcademyWhere methods and systems are taught on real data and real places, by working the case, on Risk Academy.Faculty of Earth and Environmental Sciences in Academyrisksacademy.com
18Frameworks

What the work is read against.

The platform does not set standards. It reads its evidence against the frameworks that competent bodies have adopted, so a finding can be placed where a decision-maker already works.

Framework or standardBodyWhat it sets
Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer SpaceUnited Nations (UNOOSA)Foundational rules for state responsibility and peaceful use of outer space
Guidelines for the Long-term Sustainability of Outer Space ActivitiesUN Committee on the Peaceful Uses of Outer SpaceVoluntary guidelines on policy, safety, cooperation and research for sustainable space activity
IADC Space Debris Mitigation GuidelinesInter-Agency Space Debris Coordination CommitteeMeasures to limit debris creation and to dispose of spacecraft after missions
Radio RegulationsInternational Telecommunication UnionAllocation of radio spectrum and satellite orbits, and interference rules
Principles Relating to Remote Sensing of the Earth from Outer SpaceUnited Nations General AssemblyPrinciples for remote sensing activities and access by sensed states
Integrated Geospatial Information FrameworkUN Committee of Experts on Global Geospatial Information Management (UN-GGIM)A framework for national geospatial information management
CEOS Analysis Ready DataCommittee on Earth Observation SatellitesSpecifications for satellite data processed to a minimum level for immediate analysis
International Charter Space and Major DisastersCharter member space agenciesA mechanism to provide satellite data to authorised users after major disasters
OGC standards and the SpatioTemporal Asset Catalog specificationOpen Geospatial Consortium and the STAC communityInteroperable formats and catalogues for geospatial data
22Connected

Where this page leads across the Consortium.

23Questions

Questions and answers.

Who publishes Space and Earth Observation?
The Global Centre for Risk and Innovation (GCRI) publishes Space and Earth Observation and is responsible for what it publishes. GCRI is a research, development and policy institution. It is not a regulator, and it does not certify, license or approve; its findings carry their methods and uncertainty.
Is Space and Earth Observation active?
Space and Earth Observation is an established platform of The Global Centre for Risk and Innovation. Information and enquiries are open today. 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.
How can I contribute?
Start with the participation paths or write to the contact form. An enquiry receives a reference; it does not create membership, a role or an assignment.
Where are findings published?
Reviewed outputs appear on the publications page, and contributions to the Reports series are listed on Publish in Reports.
Which values on this platform are real?
Indicator names, units, sources, methods and frameworks are real. Levels in figures and canvases are examples in a design. A programme replaces them with labelled evidence it owns.
How do I report an error?
Use corrections and concerns, or write to the integrity concern form. A correction is recorded as a new version, never a silent edit.
How does this platform differ from the Earth observation platform in Foundry?
the Earth observation platform (EOP) in Foundry is a shared technical system that renders Earth observation data for many platforms. Space and Earth Observation is the research community that develops and reviews the methods, validation and uncertainty behind that data.
Does the platform provide satellite imagery?
No. It works with data from public and commercial providers under their licences, and publishes methods, cases and briefs. Access to data follows each provider’s terms.
ReportsContribute

Contribute evidence from this page.

Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

GCRISpace and Earth ObservationObservatory SignalExponential Technology
How it works

How Space and Earth Observation works.

Choose a view and press Play to follow the platform’s process, its programme year, the standards it applies and how its findings are published. The outline shows how the work is designed to run, not the status of any decision.

Space and Earth Observation

How Space and Earth Observation works

Platforms · Programme year · Standards · Reports

A platform joins a field to named methods, labelled evidence and the outputs it publishes, without becoming the authority it serves.

  1. 01 Scope

    1. 01Field and familiesStart · The platform leadThe home states the field, its families and who it serves.
    2. 02Topic dossiersRecord · Platform authorsTopics explain the subject with labelled evidence.
  2. 02 Evidence

    1. 03Evidence labelsRecord · GCRIEach value is labelled: observed, published statistics, estimated, modelled, scenario or unknown.
    2. 04MethodsStep · Method ownersMethods come from the STEM Commons, each with one canonical page.
  3. 03 Work

    1. 05Scenarios on the systemsModel · Foundry pillarScenarios run on the Nexus systems, labelled as scenario.
    2. 06Standards that applyRecord · Nexus StandardsThe platform names the standards that apply. A validator report is evidence for review.
  4. 04 Publish

    1. 07EditionsRecord · ReportsFindings are published through Reports with their limits.
    2. 08Authority decidesOutcome · The competent authorityDecisions and execution stay with the government, operator or licensed institution.

Space and Earth Observation home · Platforms · Shared methodsAn outline of how the work is designed to run; it does not report the status of any decision or record.

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Ministries, statistics offices and agencies: a national desk and chapter, and a seat in the working groups. National chapters

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Operators, regulators, banks, insurers and professional bodies whose work touches Space and Earth Observation. Participate

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Courses and practice, with a record of every course completed. Free to study. Open learning

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Standards

Draft, review and adopt the methods and data standards with the working groups. Working groups

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Communities and research

Universities, civil society and individual experts: projects, data and review. Write to the team

The Global Risks Index

Every figure on this page is indexed: environment, hazards, climate, The Arctic.

The Index is the Consortium’s indexing system for risk data. Every indicator, hazard, series and country profile carries its Nexus Standards identifier, its source and its licence, so what this page shows can be traced, corrected and reused.

  1. 01 · Sources205 registered sourcesEvery value keeps its source and licence; withheld values are counted.Data and licences
  2. 02 · Nexus StandardsNIS-1 and NHS-1451 indicators, 905 hazards; every record carries a UNI.Nexus Standards
  3. 03 · The Index54 series, 195 country profilesComputed on the standards; no value is published until an edition is released.The Global Risks Index
  4. 04 · This pageSpace and Earth ObservationMaps, figures and feeds read the Index in the context of environment, hazards, climate and The Arctic.Public API
Sources205registered, each with its licence
Indicators451NIS-1, 106 composites, 20 domain indices
Hazards905NHS-1, crosswalked to UNDRR-ISC HIPs
Series54global, sector, strategic, technology, thematic
Country profiles195one site per country

Series in this context environment, hazards, climate

  1. GSGlobal Earth observationWhat Earth observation can and cannot see of risk: coverage, revisit, latency and the observing systems NXS-GRX (canonical data, provenance and risk) depends on.NXS-GRX-AR-000070Hazards · Climate · Environment
  2. 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…NXS-GRX-AR-000002Hazards · Climate · Environment
  3. GSGlobal ClimateChronic and acute physical climate hazard, transition exposure, adaptation gaps and scenario pathways to 2030, 2050 and 2100.NXS-GRX-AR-000065Climate · Hazards · Environment
  4. GSGlobal WaterAccess, scarcity, quality, floods and droughts, groundwater depletion, transboundary dependency and the couplings of water to energy, food, health and nature.NXS-GRX-AR-000059Hazards · Climate · Environment

All 54 series · The 20 domain indices

Hazard domains NHS-1

Geodata and API open

Open layers on an equal-area hexagon grid, shown as densities per km² or as symbols: People · GHSL 2025People · WorldPop 2025Built-up areaPortsAirportsRoadsRailwaysRivers and lake centrelines

/api/v1/public/grix · https://nexustandards.com/uni/{uni}
Developers · Data · Made with Natural Earth, Public domain; GHSL and WorldPop, CC BY 4.0

Snapshot of the Index registries pinned 2026-10-23 · 22c6eed. Research and risk-analytics information: not a rating, an official classification, a warning, a benchmark or advice.

Space and Earth Observation

Bring a method, a dataset or a question.

Information and enquiries are open today. 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.

The Global Centre for Risk and Innovation

Science · evidence · measurement

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Editors and the expert reviewers named on each article decide what we publish. Funders and partners do not review or approve articles before publication.

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Articles: CC BY 4.0. Figures, maps, twins and data: CC BY 4.0. Other uses: ask through the permissions form.