The APA (Authomatic Protection Areas) model is a numerical tool for the delineation of 2D wellhead protection areas. It is based on a hybrid forward-backward particle tracking algorithm, with a post-processing tool for an automatic encirclement of capture zones.

APA is implemented in a Matlab environment. It is provided as an encrypted not compiled (.p) code, thus it is necessary for users to have Matlab installed on their computer.

User manual: APA R1.0 reference notes

Software: Packed files for download


Tosco T, R. Sethi, A. Di Molfetta (2008). An automatic, stagnation point based algorithm for Wellhead Protection Areas delineation, Water Resources Research, ISSN: 0043-1397, DOI: 10.1029/2007WR006508 pdf

Tosco T, R. Sethi (2009). Comparison between backward probability and particle tracking methods for the delineation of well head protection areas, Environmental Fluid Mechanics, ISSN: 1567-7419, DOI: 10.1007/s10652-009-9139-2 pdf

Tosco T, A. Di Molfetta, R. Sethi (2010). Automatic delineation of capture zones for Pump & Treat systems: a case study in Piedmont, Italy, Ground Water Monitoring & Remediation, 30(2), 46-52 pdf