SuperGIS Software Applied to Systemize Groundwater Recharge Potential Evaluation

Due to the terrain as well as poor water and soil conservation, that disastrous landslides occur in Taiwan after heavy rainfall has becoming a routine these years. And water resource protection, as a result, grows more important and urgent.

Ministry of Economic Affairs, Taiwan has launched hydrogeology studies in nine groundwater areas and built up groundwater investigation wells since 1991. The ministry collects the hydrogeology data, establishing hydrogeology database for researchers to monitor those natural groundwater recharge areas.

In order to elevate the accuracy of the delimiting of groundwater recharge area and the evaluation of recharge quantity, the government needs to have more detailed and complete monitoring data. Therefore, the authority seeks GIS technologies to create a groundwater recharge potential evaluation platform.

Applying SuperGIS Desktop and its extension—SuperGIS Spatial Analyst and SuperGIS Spatial Statistical Analyst, the Groundwater recharge potential evaluation platform possesses two main functions, Groundwater Hydrograph Recharge Evaluation and Groundwater Recharge Potential Evaluation.

This system utilizes the hydrograph changes of water table and tests the water pumped from the duplicate wells to calculate the pumping rate, recharge rate, water storage variations, and water loss rate in drainage regions. Furthermore, it employs multiple groundwater recharge factors to estimate the groundwater recharge potential of a certain drainage area.

With Groundwater recharge potential evaluation platform, the government is expected to not only improve the efficiency in the survey of water resource and reinforce groundwater preservation, but also bring down the damage from natural disasters toward the entire environment to the lowest extent.

For the complete story of this application, please visit http://www.supergeotek.com/Library_2_201010.aspx