STAC discovery
Search compatible STAC catalogues by collection, date, cloud cover and map extent, then inspect the assets associated with a scene.
EARTH OBSERVATIONSatellite and raster intelligence,
Satellite and raster intelligence,
inside the GIS workflow.
GeoLayers connects STAC discovery, raster viewing, spectral analysis, change detection and zonal statistics to the same project environment used for vector GIS and planning.
Browser-based GISGeoAI + spatial analyticsSouth African context
EARTH OBSERVATION WORKFLOW
From satellite scene to project-ready intelligence
GeoLayers Earth Observation & Raster Intelligence is built for users who need to discover imagery, inspect raster data, derive indicators and publish results back into a GIS project.
Raster viewer
Load local GeoTIFFs or compatible remote COG/GeoTIFF sources, inspect pixels, calculate statistics and create RGB composites.
Spectral indices
Calculate NDVI, NDWI, NDBI and SAVI using detected or manually assigned multispectral bands.
Change & zonal analysis
Compare two dates, calculate raster change and summarise raster values across project polygons.
ANALYSIS PIPELINE
A practical Earth Observation sequence
The module supports a repeatable path from source imagery to a mapped analytical result.
Find or load imageryUse STAC discovery or add a raster source that is suitable for the geography, date and analytical question.
Inspect and prepareReview raster dimensions, bands and value distributions; create an RGB composite or assign spectral bands as needed.
Derive informationCalculate indices or raster expressions, compare dates and inspect the distribution of the output.
Connect to GISPublish WGS84-compatible outputs to the GeoLayers map and use project polygons for zonal interpretation.
WHAT YOU CAN MEASURE
Use raster data to observe conditions that vector data may miss
Earth Observation is especially useful where the question changes through time or across continuous surfaces.
- Vegetation condition and relative greenness using NDVI or SAVI.
- Water-related signals using NDWI and built-up patterns using NDBI.
- Before/after differences for land-cover disturbance, development or environmental monitoring.
- Raster statistics and histograms for inspecting distributions before interpreting results.
- Polygon-based summaries for municipalities, farms, sites, service areas or study zones.
- Local and remote imagery sources without forcing the user into a separate desktop workflow.
DESIGNED FOR THE WEB
Fast enough for exploratory and project analysis
Browser processing is intentionally bounded. Large rasters are sampled to a manageable analysis grid so users can work interactively, while source-resolution production processing can remain in specialist or server workflows where required.
Interactive exploration
Rapidly compare imagery, test indices and inspect spatial patterns before committing to a heavier workflow.
Project context
Use the same map, polygons and project layers that already support the rest of the GeoLayers analysis.
Reusable outputs
Take raster-derived findings into cartography, dashboards, planning analysis or decision-support workflows.
Explore raster intelligence in Studio
Bring a GeoTIFF or compatible imagery source into GeoLayers and work from visual inspection to spatial analysis.