GIS, Remote Sensing & Mapping
Mapping and spatial analysis for environmental planning, assessment and research.
Spatial data answers questions that tabular data cannot: not just how much, but where, adjacent to what, and draining into where. Our geospatial work supports environmental planning, impact assessment and research — producing maps that are defensible under review, not merely attractive.
What we deliver
- Thematic map preparation and cartographic outputs
- GIS-based spatial analysis and modelling
- Land Use / Land Cover (LULC) mapping and change detection
- Watershed, terrain and drainage analysis
- Environmental sensitivity and resource mapping
- Remote sensing image analysis and interpretation
- GIS consultancy for research and academic projects
Thematic map preparation and cartographic outputs
Maps prepared to cartographic standard with correct projection, scale, legend, north arrow, source attribution and data vintage. Thematic maps for Environmental Impact Assessment are a common request, and the difference between one that is accepted and one that is returned is usually completeness of the map furniture rather than the analysis behind it.
GIS-based spatial analysis and modelling
Overlay analysis, proximity and buffer studies, suitability modelling and change detection between time periods. The method is chosen to fit the decision: a siting question, a constraint map and an impact zone each demand a different analytical approach, and we document which was used and why.
Land Use / Land Cover mapping and change detection
Classification of land cover from remote sensing imagery into the categories a project actually needs, with the classification scheme stated explicitly. Where change over time is the question, multi-date classification shows how land use has shifted and at what rate — the evidence base for most land-related environmental argument.
Watershed, terrain and drainage analysis
Catchment delineation, slope and aspect derivation, drainage network extraction and flow accumulation from elevation data. This underpins rainwater harvesting design, erosion and runoff assessment, and any question about where water goes when it leaves a site.
Environmental sensitivity and resource mapping
Composite mapping of the features that constrain or complicate development — ecologically sensitive areas, water bodies, drainage lines and resource distribution. Sensitivity mapping is most valuable early, when the layout can still respond to what the map shows.
Remote sensing image analysis
Satellite imagery selected for the question rather than for availability — the right sensor, resolution and season, with the limits of what it can resolve stated openly. Remote sensing is powerful for extent and change, and weak for anything smaller than its pixel, so we say which of the two a given output is.
GIS consultancy for research and academic projects
Spatial data preparation, analysis and cartographic output for researchers and students whose work needs a geospatial component but whose training is in another discipline. We work alongside the researcher so the method is understood and defensible, not delivered as a black box.
Common questions
What makes a thematic map acceptable for an EIA?
Can you work with data we already hold?
Do you provide GIS support for student research?
Have a site or a deadline in mind?
Describe what you are dealing with and we will tell you what it needs, what it involves and roughly how long it takes. No obligation either way.