Multi-criteria approaches to analysis of complex issues in coupled human-environment systems have found wide application across business, government and communities around the world. Increased attention has been paid to spatial implementations of multi-criteria analysis. Spatial capability is available in several GIS, such as IDRISI and ArcView, and is often customised for particular problems i...

Water quality models have reached a high degree of sophistication, but their weak side remains user interface and output georeferencing. The aim of this paper is to propose an interfacing procedure between two widespread but specialised programming environments: ArcVIEW as a Geographical Information System (GIS) and Matlab as a scientific programming tool for numerical analysis. The proposed so...

Introduction: Terrain analyses are commonly used to study the geomorphic processes that have modified surfaces [1]. Our approach is based on analysis of slopes, which are the irregular surface expressions of the processes responsible for shaping landscapes [2]. Slope distributions likely represent unique surface forming processes and can be used to characterize entire landscapes at a given scal...

This paper presents a methodology for data mining and knowledge discovery in large, distributed and heterogeneous databases. In order to obtain potentially interesting patterns, relationships, and rules from such large and heterogeneous data collections, it is essential that a methodology be developed to take advantage of the suite of existing methods and tools available for data mining and kno...

Maps have been major sources of information for a long time. Geographic Information Systems (GIS) use digital data, elevation models, satellite images, expert systems and related open source information for planning, detection, evaluation and decision making. Maps as well as GIS use spatial attributes of data in particular. Spatial Information derived is a feature of both data and language to c...

PARADIS stands for a Prototype for Assisting Rational Activities in Demining using Images from Satellites. The aim of this project is to improve the planning of humanitarian demining campaigns using Remote Sensing data and GIS techniques. In this context, a user interface has been developed in ArcView GIS to integrate the tools needed for the management of the campaigns. The interface is built ...

A case study of the Eskilstuna River in Sweden is presented. This study is carried out within the project KRIS-GIS, a Swedish initiative of handling crisis situations, including flooding. The purpose is to show how different resolutions in input elevation data affect the resulting inundation maps. Terrain elevation points at the sides of the river were gathered from an airborne laser altimetry ...

Using forest inventory data and Landsat ETM+ data, linear fixed-effects models and linear mixed-effects models are developed based on the allometric growth model. The surface area of the normalized difference vegetation index (NDVIsa) is developed from the triangulated irregular network (TIN) with the aid of image-processing and the three-dimensional analysis extensions of Environmental Systems...