Geographic information system (GIS) procedure for preliminary delineation of debris-flow hazard areas from a digital terrain model, Madison County, Virginia

1999 ◽  
Author(s):  
R.H. Campbell ◽  
P.G. Chirico
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Debris Flow ◽  
Digital Terrain Model ◽  
Geographic Information ◽  
Terrain Model ◽  
Madison County ◽  
Digital Terrain ◽  
Debris Flow Hazard

scholarly journals Debris Flow Risk Mapping Based on GIS and Extenics

2018 ◽  
Author(s):  
Wenbo Xu ◽  
Xueru Zhang ◽  
Yangjuan Zou ◽  
Chunyu Zhang ◽  
Siyu Liu
Keyword(s):  
Risk Assessment ◽  
Information System ◽  
Geographic Information System ◽  
High Risk ◽  
Debris Flow ◽  
Large Scale ◽  
Strong Support ◽  
Geographic Information ◽  
Sichuan Province ◽  
Very High

Abstract. Debris flow, a very dangerous natural disaster, frequently occurs in mountainous areas of Sichuan province. China. Here, we applied the extenics method, which is normally used in single debris flow risk assessment, towards a large-scale debris flow risk assessment for the first time, and built the classical matter elements and joint domain matter elements for assessment of the debris flow risks in Sichuan province. Eight factors, including relative elevation, slope, rock hardness, rainfall, gully density, vegetation coverage, occurrences of historical debris flow and historical earthquake occurrences were selected for debris flow assessment by using geographic information system technology and weight analysis approach. Based on the risk assessment, the debris flow risk map was generated. Results indicate that areas with high risk and very high risk accounted for 21.32 % and 14.35 % of the whole province, respectively. 76 % of the verification points fall within the moderate, high and very high risk areas, suggesting high accuracy of extenics method in large-scale assessment areas. Thus, the Geographic Information System (GIS) and extenics based methods could provide a strong support for debris flow management in the region.

scholarly journals University Management System Based On BIM-GIS-Technologies

2020 ◽  
pp. short26-1-short26-9
Author(s):  
Tatiana Tomchinskaya ◽  
Maria Galanina
Keyword(s):  
Information System ◽  
Data Exchange ◽  
Three Dimensional ◽  
Digital Terrain Model ◽  
University Management ◽  
Three Dimensional Model ◽  
Terrain Model ◽  
Gis Technologies ◽  
Digital Terrain ◽  
The University

The work has an information system developed based on GIS and BIM technologies. The component of the geographic information system of the Nizhny Novgorod State Technical University n. a. R.E. Alekseev - information model of the NSTU, built in the REVIT tool environment. The models include a digital terrain model, a three-dimensional model of the educational building and utilities, a library of materials. The features and technology of creating external models of the university are considered. The project is intended for administrative and economic services of the university, decision support for engineering, and economic services. The information system implemented within the framework of this technology will make it possible to determine the optimal parameters for the operation of a building throughout its entire life cycle and take into account aspects such as meeting legal, environmental, and operational requirements. The unique integration of BIM and GIS technologies implements the apparatus for data exchange between BIM and GIS components.

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