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Earth observation & GeoAI

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Technologies
The technologies behind earth observation & GeoAI.

Every technology this platform builds with, layer by layer, from the open taxonomy. Marked in red: what is moving now, each traced to its source.

Plan with usArchitecture

Areas · 4 Technologies · 132 Industries · 16

01The layered map

Layer by layer, from the open taxonomy.

Each domain this platform draws on, with its layers and the technologies in each. Open a layer for what each technology does and the standard behind it.

Remote sensing and Earth observation

Every platform, sensor, processing level and ground-segment step that turns remote measurements of the Earth into calibrated, analysis-ready evidence for a site, a region or a network.

The full directory →

Platforms and orbits

Technologies · 8 · Frontier · 1

  • Geostationary imagers and sounders
  • Low Earth orbit sun-synchronous missions
  • Small satellite constellations
  • High-altitude platform stations (HAPS)
  • Crewed survey aircraft
  • Drones and remotely piloted aircraft
  • Tethered aerostats and balloon soundings
  • Ground-based remote sensing

Optical, spectral and thermal sensors

Technologies · 8 · Frontier · 1

  • Panchromatic and very high resolution optical
  • Multispectral imagers
  • Hyperspectral imaging spectrometers
  • Thermal infrared imagers
  • Stereo, tri-stereo and video capture
  • Ocean colour and aquatic reflectance
  • Low-light and night-time imaging
  • Solar-induced fluorescence

Radar, lidar and microwave sensors

Technologies · 10 · Frontier · 1

  • Synthetic aperture radar by band (P, L, S, C, X, Ku, Ka)
  • Interferometric SAR (InSAR)
  • Polarimetric SAR (PolSAR)
  • Ocean radar backscatter and scatterometry
  • Radar altimetry
  • Lidar (airborne, drone and spaceborne)
  • Passive microwave radiometry
  • GNSS radio occultation
  • GNSS reflectometry
  • Atmospheric sounders and composition instruments

Processing levels and analysis-ready data

Technologies · 9

  • Level 0: raw instrument data
  • Level 1: calibrated and geolocated
  • Level 2: geophysical variables
  • Levels 3 and 4: gridded, composited and modelled
  • CEOS analysis-ready data
  • Atmospheric, terrain and radiometric terrain correction
  • Cloud, shadow and quality masking
  • Onboard and ground compression
  • Product metadata and lineage

Calibration and validation

Technologies · 8

  • Pre-flight and onboard calibration
  • Vicarious calibration and test sites
  • Inter-calibration of satellite instruments
  • Fiducial reference measurements
  • SAR calibration targets
  • Geometric accuracy and ground control
  • Product validation stages
  • In situ match-up networks

Tasking, ground segment and access

Technologies · 9 · Frontier · 1

  • Tasking, mission planning and revisit analysis
  • Orbit and conjunction data
  • Ground stations and downlink
  • Space link extension and station networking
  • Direct broadcast and edge processing
  • Optical ground stations
  • Ground segment security
  • Licensing and remote sensing law
  • Disaster activation and rapid mapping

Data cubes, analysis and archives

Technologies · 7

  • EO data cubes
  • Imagery catalogues
  • Time-series analysis
  • Essential climate, ocean and biodiversity variables
  • Fusion with in situ data and models
  • Long-term archive and preservation
  • Commercial and open data licensing

Frontier and research

Technologies · 8 · Frontier · 8

  • Onboard AI and in-orbit processing
  • Optical inter-satellite links and data relay
  • High-revisit SAR and high-resolution thermal constellations
  • Imaging spectroscopy constellations
  • Greenhouse gas point-source detection
  • EO foundation models and embeddings
  • Quantum and cold-atom gravimetry
  • Digital twins of the Earth

GIS, maps and GeoAI

The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.

The full directory →

Reference systems and geodesy

Technologies · 7

  • Terrestrial reference frames
  • National and regional datums
  • Coordinate reference systems and operations
  • Dynamic datums and time-dependent coordinates
  • Geoid models and vertical datums
  • Precise GNSS positioning (RTK, PPP, PPP-RTK)
  • Pose and orientation

Vector, raster and array formats

Technologies · 10

  • Simple features and geometry models
  • GeoJSON
  • GeoPackage
  • GeoParquet
  • Cloud Optimized GeoTIFF (COG)
  • Zarr and multidimensional arrays
  • netCDF and HDF5
  • Coverages
  • Point clouds
  • Geography Markup Language

Tiling, maps and visual services

Technologies · 7

  • Tile matrix sets
  • Vector tiles
  • PMTiles single-file archives
  • Raster map tiles and legacy map services
  • Map rendering APIs
  • Styles and symbology
  • Offline and low-bandwidth maps

APIs, catalogues and discrete global grids

Technologies · 8

  • OGC API – Features
  • OGC API – Processes
  • OGC API – Environmental Data Retrieval (EDR)
  • OGC API – Records and Coverages
  • SpatioTemporal Asset Catalog (STAC)
  • Discrete global grid systems (DGGS)
  • H3 hexagonal index
  • Feature catalogues and data dictionaries

Spatial analysis and siting

Technologies · 10

  • Terrain analysis
  • Hydrological modelling
  • Flood inundation and hazard mapping
  • Viewshed and line of sight
  • RF propagation and coverage prediction
  • Network analysis
  • Spatial statistics and interpolation
  • Multi-criteria siting (MCDA)
  • Geocoding and addressing
  • Moving features and trajectories

GeoAI

Technologies · 10 · Frontier · 3

  • Semantic segmentation and land cover
  • Change detection
  • Object detection and counting
  • Training data and labels
  • Model metadata and model cards
  • Accuracy assessment
  • Edge inference on imagery
  • Geospatial foundation models
  • Super-resolution and multi-sensor fusion
  • Geospatial agents and natural-language queries

3D, BIM and digital twins

Technologies · 8 · Frontier · 2

  • City and site models
  • 3D Tiles and scene layers
  • BIM and asset information
  • Photogrammetry and reality capture
  • Indoor and underground models
  • Digital twin frameworks
  • Sensor-fused live twins
  • Geospatial augmented reality

Metadata, quality and publication

Technologies · 5

  • Geographic metadata
  • Data quality
  • Map accessibility
  • Licensing of map sources
  • Spatial data infrastructures

02Across the network

The whole spectrum, on the main site.

Main site

Every technology domain

All domains, layers and items, with their sources.Open →
Main site

The spectrum

The technologies of observation on one map.Open →
Observatory Protocol

Standards

The open standards the protocol is composed from.Open →

03On this site

Where to go next.

Earth observation & GeoAI

Areas

Every area, with its systems and standards.Open →
Earth observation & GeoAI

Architecture

Layers, functions and evidence.Open →
Earth observation & GeoAI

Industries

The industry sites built on this platform.Open →
Earth observation & GeoAI

Resources

Explainer, stories, specification and forms.Open →

Bring us the site.

We bring the survey, the design and the crew. The form names who receives your details.

Plan a deploymentContact

The technologies behind earth observation & GeoAI.

Bring us the site.

We bring the survey, the design and the crew. The form names who receives your details.