GIS FOR WATER APPLICATIONS
The GIS for Monitoring Projects involves co-ordinate conversions and locational mapping for routine, annual and ad-hoc monitoring reports. Borehole chemistry can be linked to the boreholes and mapped according to classification of the chemistry (for example, iron and calcium). Monthly results can be easily compared, highlighting the sample points and where values increase or decrease.
Hydrogeological and hydrocensus studies mapping
This involves the mapping of the location of boreholes and hydrocensus results such as static water levels, yields, discharge and water quality. Geology and potential sites also form part of the mapping exercise for boreholes. Data and co-ordinate conversions are almost always part of this kind of study.
The GIS analysis for this kind of study involves buffering around rivers, transecting across specific parts of rivers, intersection profiles of the contours and buffers, topographical analysis and final mapping. The strength of a GIS is it’s ability to combine multiple data inputs to provide a cumulative answer that is based on various factors. GIS allows for the visualisation of data around us by turning it into tangible information that can be graphically represented.
Stream Flow Analysis
A stream flow analysis can be performed to give an indication of the behaviour that surface water is expected to have in relation to the topography. The stream flow analysis is dependent on the quality of the input data received, with higher-end survey grade elevation models leading to a more accurate analysis, while the coarser resolution satellite derived elevation models leading to a generalised overview of the stream flow in the area. Coupled with the GCS Surface Water specialists, all stream flow analysis outputs are comprehensively evaluated and reviewed by our in house specialist team.