A gis open source application for the assessment of groundwater vulnerability to pollution: A case study in serra da estrela (central portugal) [Uma aplicação sig open source para a avaliação da vulnerabilidade da água subterrânea à poluição: Um estudo de caso na serra da estrela (centro de portugal)]

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Lia Duarte (Author) FCUP; Pereira, J (Author) Other; Marques, JM (Author) FCUP; Ana Teodoro (Author) FCUP

Journal

Title: Comunicações Geológicas

Vol. 104 No. 1

Pages: 69-74

ISSN: 0873-948X

Publisher: LNEG - Laboratório Nacional de Energia e Geologia

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00Q-E5V

Abstract (EN): Groundwater is more and more regarded as a crucial resource and its pollution is a major environmental concern at global scale. Geographical Information Systems (GIS) are often used to estimate groundwater vulnerability to pollution as it provides several efficient tools to manipulate and analyze a number of biophysical data types of hydrogeological relevance. The objective of this work was to use an improved GIS open source application for assessing groundwater vulnerability to pollution on the river Zêzere basin upstream of Manteigas (Serra da Estrela, Central Portugal), using two different indexes: DRASTIC and GOD. Vulnerability mapping was first carried out using a GIS open source application which incorporates the DRASTIC index. Subsequently, the application was improved by incorporating the GOD index. Finally, the resulting indexes maps were compared. It was concluded that, with this GIS application, the DRASTIC index provides more detailed and realistic results than GOD index in the assessment of groundwater vulnerability to pollution. © 2017 LNEG ¿ Laboratório Nacional de Energia e Geologia IP.

Language: English

Type (Professor's evaluation): Scientific