Alluvial Fan Database: Presenting Geographical Information Using an Internet Map Server.
نویسندگان
چکیده
منابع مشابه
Controls on alluvial fan long - profi les
Water and debris fl ows exiting confi ned valleys have a tendency to deposit sediment on steep fans. On alluvial fans where water transport of gravel predominates, channel slopes tend to decrease downfan from ~0.10–0.04 to ~0.01 across wide ranges of climate and tectonism. Some have argued that this pattern refl ects grain-size fi ning downfan such that higher threshold slopes are required just...
متن کاملpedogeomorphic evolution of an alluvial fan in central iran
despite of suitable geological and climatic conditions for forming and evolution of alluvial fans and importance of this landform as soil and water resources in arid regions, there are limited studies about this landform in iran. in the present study, evolution and pedogenic development of geomorphic surfaces of an alluvial fan in eastern isfahan were studied by using remote sensing, field and ...
متن کامل1 Re - presenting Geographical Information Systems
The increasingly widespread use of Geographical Information Systems (GISystems, widely known as GIS) has meant that a version of ‘geography’ has been exported to many other disciplines and walks of life where this technology has been found to be useful. As an undergraduate, one of us read Applied Geography by Dudley Stamp (Stamp, 1960). It is full of ideas and examples of the applications of ge...
متن کاملCharacterisation of the surface morphology of an alpine alluvial fan using airborne LiDAR
Alluvial fans of alpine torrents are both natural deposition areas for sediment discharged by floods and debris flows, and preferred sites for agriculture and settlements. Hazard assessment on alluvial fans depends on proper identification of flow processes and their potential intensity. This study used LiDAR data to examine the morphology of the alluvial fan of a small alpine stream (Moscardo ...
متن کاملAnalysis of Flood Hydraulic in Alluvial Fan River using CCHE2D Case Study: (Roodan River)
In this study the advantages and importance of a numerical model to predict and monitor the processes governing hydraulic changes alluvial fan river is discussed. For this reason and because of the importance of flow velocity and shear stresses resulting from the erosion of the river, A two-dimensional numerical model to simulate the CCHE2D river changes ranging from Roodan River is used. In th...
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ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 2000
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.109.120