The environment around us is a complex and fascinating ecosystem. To better understand it, physical features can be represented as digital layers and analysed to get the complete story.
At PJRA, our geospatial experts use state of the art Geographic Information Systems (GIS) to visualise sites in past and present states, depict site features that exist above and below ground, and show how it would look from a bird’s eye view, in cross section, or a 3D perspective.
Utilising GIS for our projects makes data collection, analysis, and presentation more efficient, and provides additional confidence in data accuracy. Geospatial analysis tools enable us to compare data from multiple sources to gain valuable insights, such as interpreting contaminant source, fate and interaction. These advantages translate to high quality deliverables and increased value for our clients.
Our Geographic Information System allows input of data from multiple sources, which we store in structured databases adhering to sound data management pracces.
Key data sources include:
Data and drawings from Surveyors
Planning zones and overlays
Government data (local, state, and national)
Laboratory analytical results for soil and water samples
Physical site information from field investigations
Topographic features and contours
Digital Elevation Models
Aerial imagery sourced from satellites, aeroplanes, and drones
Cartography is the ancient art of map-making, PJRA brings this art form into the digital age by using GIS to create high quality maps and figures for reports and presentations. Our experienced geospatial specialists take pride in producing maps that are not only accurate and aesthetically pleasing, but can transform complex information from the field and laboratories into a visual depiction that makes it easy to understand.
Spatial Data Analysis
Powerful GIS tools enable our experts to perform spatial analysis that provides vital information, including:
Buffer Analysis- creating offsets from site features at specified distances
Spatial Intersection- determining the area of overlap between different features
Geometric Calculations- calculating areas, lengths, distances, elevations, and volumes
Sampling Plans- creating measured grid spacing or randomised sample locations
Compatibility and Compliance
In this digital age, geospatial data is a universal standard for government agencies, and it is becoming a requirement for regulating bodies such as the various environment protection authorities across the country. We have an in-depth understanding of these regulatory requirements and produce GIS data in formats which are fully compliant.
Our clients use a variety of systems, and we can provide information in the right format to integrate with them. We produce spatial data compatible with the following software packages:
Web based GIS viewers
Databases and Spreadsheet Software
We utilise GIS for creating maps and figures across a full range of projects, but the analysis and visualisation tools are particularly powerful for:
Site suitability assessments
Planning zone assessments
Exceedence mapping for contaminated land investigations
Contamination plume mapping for groundwater investigations