Digital Elevation Models (DEMs) are the digital representation of natural topographic as well as man-made features located on the surface of the earth. For the last few decades, DEMs are widely used for resource management, urban planning, transportation planning, earth sciences, environmental assessments, and Geographic Information System (GIS) applications. The hydrologic community is also mo...

The aim of this study is to produce landslide susceptibility mapping by probabilistic likelihood ratio (PLR) and spatial multi-criteria evaluation (SMCE) models based on geographic information system (GIS) in the north of Tehran metropolitan, Iran. The landslide locations in the study area were identified by interpretation of aerial photographs, satellite images, and field surveys. In order to ...

in this research using gis effect of land management and soil criteria with eight indicators to study the sensitivity to the desert lands of the region of sistan jazinak creation is evaluated. vote based on the model parameters wilderness - the latest creation esas evaluation method wilderness creation and in most european countries and the middle east is used, took place. using the above metho...

Spatial decision support systems (SDSS) are generally employed in decision problems, in which spatial dimensions play a significant role. They have a satisfactory record in a wide range of problems and in various circumstances. SDSS Applications include land use planning, nuclear waste disposal facility location, water resource management, habitat site development, health care resource allocati...

In order to optimise the quality and use of abstracted waters it is imperative to assess the risk of pollution from the catchment area upstream of the supply intake. This process can be greatly facilitated through the use of environmental spatial data and decision support software. This paper describes the development of a number of tools to support environmental risk assessment and operational...

Active volcanoes give significant threats to the populations that live in their proximity. The Three Sisters Volcanic region is one of 9 threatening volcanoes within the Cascades volcanic arc. Eruptions are probable which makes it essential to complete hazard, vulnerability, and risk assessments so that proper planning, education and mitigation procedures can be implemented prior to the threat ...

Selecting a landfill site is an optimal solution for the disposal of solid waste in Al-Mahawil Qadhaa, both to fulfill the environmental and scientific requirements, and to comply with regulations and restrictions in this Qadhaa. Presently, there is no landfill site in the area that meets the scientific site selection criteria. Therefore, in this study, two methods of multi-criteria decision-ma...

In this research, MCDM methods have been integrated with a GIS to provide the means to prioritise branch closure procedures based upon a variety of different choice criteria and on the importance (weight) a decision maker might attach to these. Both MCDM and GIS are well established methods and fields of research. Their integration, however, seems at best an emerging field. This paper describes...