Development of a GIS Based Urban Groundwater Recharge Pollutant Flux Model
Track: Water Resources
Author(s): Abraham Thomas, John H Tellam
This paper presents the use of GIS in assessing the extent of pollutant fluxes reaching to an urban unconfined aquifer system in the United Kingdom. Urban groundwater recharge and pollution is a complex and poorly understood process. No proper method is available for assessing the amount of recharge and pollutant fluxes reaching in urban aquifers of the UK. As part of a large project on the Birmingham urban aquifer studying long-term urban aquifer sustainability, a desktop GIS (ArcView GIS and the ArcView Spatial Analyst extension)-based runoff-recharge-pollutant flux model has been developed to estimate the potential recharge and pollutant fluxes to an urban unconfined aquifer system. This paper explains how an integrated approach (involving analysis of various thematic maps and other attribute information of a UK urban area using above-mentioned desktop GIS-based recharge pollutant flux model) could help in assessing the amount of groundwater recharge and pollutant fluxes (currently a few chosen pollutant species such as nitrate, chloride, and BTEX compounds) reaching to the groundwaters of the Birmingham area.
University of Birmingham
Research Student, School of Earth Sciences,
University of Birmingham, Edgbaston
Birmingham, West Midlands, England B15 2TT