Intrinsic Vulnerability - is the term used to define the vulnerability of groundwater to contaminants. It takes into account the geological, hydrological and hydrogeological characteristics of an area, but is independent of the nature of the contaminants
Specific Vulnerability - is the term used to define the vulnerability of groundwater to a particular contaminant or group of contaminants. It takes into account the properties of the contaminant(s) and its (their) relationship(s) to the various aspects of the intrinsic vulnerability of the site
There are various ways to quantify groundwater vulnerability, One of the approaches are Parametric System Models:
The selection of factors (parameters) assumed to be significant for vulnerability. Each factor has a natural range which is subdivided into discrete intervals and each interval is assigned a value reflecting the relative degree of sensitivity to contamination. The vulnerability of an area is determined by putting together the values for the different factors using a matrix (MS), a rating system (RS) or a point count systems (PCSM) –GOD, DRASTIC, EPIK etc.
I designed watershed models and applied an EPIK analysis consisting of the following factors:
- Protective cover
- Infiltration Condition
- Karst network development
in order to identifiy vulnerable areas in the national park Djerdap in Serbia. The resulting multi-variate factor matrix has been transformed into a map with a custom made diagram type in order to visually communicate the results to decision makers.
Categories: GIS Analysis
Start: Mar, 2011
End: Jun, 2011