Multi-criteria analysis and Geographic Information Systems: analysis of natural areas and ecological distributions

1998 ◽  
pp. 271-292 ◽  
Author(s):  
Andrea Patrono
Keyword(s):  
Information Systems ◽  
Geographic Information Systems ◽  
Systems Analysis ◽  
Geographic Information ◽  
Natural Areas ◽  
Multi Criteria Analysis

The aspects of Aspect: Understanding land exposure and its part in geographic information systems analysis

2018 ◽  
Vol 29 (6) ◽  
pp. 1022-1037 ◽  
Author(s):  
George D Malaperdas ◽  
Vayia V Panagiotidis
Keyword(s):  
Information Systems ◽  
Spatial Analysis ◽  
Geographic Information Systems ◽  
Learning Process ◽  
Systems Analysis ◽  
Geographic Information ◽  
Digital Elevation ◽  
New Students ◽  
Using Data ◽  
Elevation Model

One of the hardest terms for students new to geographic information systems to understand is the meaning and application of Aspect. When taking one’s first steps in spatial analysis using data in the form of rasters, the first three things new users are called to learn and use are exporting a digital elevation model, the Slope (land incline) and finally the Aspect (orientation of a slope). While the first two are quite straightforward and easily comprehended even from newcomers to spatial analysis in geographic information systems, Aspect continues throughout the learning process to be difficult as a function with one out of three new students not able to decipher it. This paper attempts to give a simpler definition to Aspect including its analytical significance in geographic information systems.

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