White Rose University Consortium logo
University of Leeds logo University of Sheffield logo York University logo

Geo-environmental mapping using physiographic analysis: constraints on the evaluation of land instability and groundwater pollution hazards in the Metropolitan District of Campinas, Brazil

Fernandes-da-Silva, P.C., Vedovello, R., Ferreira, C.J., Cripps, J.C., Brollo, M.J. and Fernandes, A.J. (2010) Geo-environmental mapping using physiographic analysis: constraints on the evaluation of land instability and groundwater pollution hazards in the Metropolitan District of Campinas, Brazil. Environmental Earth Sciences, 61 (8). pp. 1657-1675. ISSN 1866-6280

Full text available as:
[img] Text (Main Article)
Cripps_42646.pdf

Download (131Kb)
[img] Text (Figures)
Cripps_(Figures).pdf

Download (1254Kb)
[img] Text (Tables)
Cripps_(Tables).pdf

Download (156Kb)

Abstract

Geo-environmental terrain assessments and territorial zoning are useful tools for the formulation and implementation of environmental management instruments (including policy-making, planning, and enforcement of statutory regulations). They usually involve a set of procedures and techniques for delimitation, characterisation and classification of terrain units. However, terrain assessments and zoning exercises are often costly and time-consuming, particularly when encompassing large areas, which in many cases prevent local agencies in developing countries from properly benefiting from such assessments. In the present paper, a low-cost technique based on the analysis of texture of satellite imagery was used for delimitation of terrain units. The delimited units were further analysed in two test areas situated in Southeast Brazil to provide estimates of land instability and the vulnerability of groundwater to pollution hazards. The implementation incorporated procedures for inferring the influences and potential implications of tectonic fractures and other discontinuities on ground behaviour and local groundwater flow. Terrain attributes such as degree of fracturing, bedrock lithology and weathered materials were explored as indicators of ground properties. The paper also discusses constraints on- and limitations of- the approaches taken.

Item Type: Article
Copyright, Publisher and Additional Information: © 2010 Springer. This is an author produced version of a paper subsequently published in Environmental Earth Sciences. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Terrain units; Satellite imagery; Physiographic compartmentalisation; Tectonic fracturing; Inferential tools
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 17 Nov 2010 09:37
Last Modified: 08 Feb 2013 17:29
Published Version: http://dx.doi.org/10.1007/s12665-010-0480-z
Status: Published
Publisher: Springer
Refereed: Yes
Identification Number: 10.1007/s12665-010-0480-z
URI: http://eprints.whiterose.ac.uk/id/eprint/42646

Actions (repository staff only: login required)