DIGITAL ELEVATION MODEL ANALYSIS OF STREAM PROFILES OF THE NORTHEASTERN COAST OF OMAN: IMPLICATIONS FOR LANDSCAPE EVOLUTION 

2016 ◽  
Author(s):  
Amani Humaid Al Abri ◽  
Keyword(s):  
Digital Elevation Model ◽  
Landscape Evolution ◽  
Model Analysis ◽  
Digital Elevation ◽  
Elevation Model ◽  
Northeastern Coast

Digital elevation model-based watershed geomorphic entropy for the study of landscape evolution of a watershed geomorphic system in the loess landforms of China

2016 ◽  
Vol 41 (2) ◽  
pp. 139-153
Author(s):  
Weidong Zhao ◽  
Guoan Tang ◽  
Lei Ma ◽  
Jitang Zhao ◽  
Wan Zhou ◽  
...  
Keyword(s):  
Digital Elevation Model ◽  
Loess Plateau ◽  
Landscape Evolution ◽  
The Loess Plateau ◽  
Experimental Conditions ◽  
Method Of Calculation ◽  
Sediment Yields ◽  
Digital Elevation ◽  
Elevation Model ◽  
Evolutional Process

Although the concept of entropy in landscape evolution was proposed over 40 years ago, previous studies of geomorphic entropy paid little attention to the applications of geomorphic entropy in the erosional watershed geomorphic system on the Loess Plateau in China. Therefore, we propose a new concept of entropy called watershed geomorphic entropy (WGE) and its method of calculation based on a digital elevation model and the principles of system theory. To study the geomorphic significances of WGE, we applied the WGE to an artificial rainfall experiment that was originally designed to study erosional processes in a small open watershed geomorphic system on the Loess Plateau. Our study shows that the decrease of WGE in an open watershed geomorphic system means a gradual erosional or erosion-dominated landscape evolutional process and the change of WGE shows a perfectly positive linear correlation with the measured sediment yields of the outlet of the watershed system under our experimental conditions. In addition, to some extent, the decrease of the change of WGE also reflects the reduction of total potential energy of a specific erosional, or erosion-dominated, open watershed geomorphic system.

scholarly journals pyDEM: Global Digital Elevation Model Analysis

2015 ◽  
Author(s):  
Mattheus Ueckermann ◽  
Robert Chambers ◽  
Christopher Brooks ◽  
William Audette ◽  
Jerry Bieszczad
Keyword(s):  
Digital Elevation Model ◽  
Model Analysis ◽  
Digital Elevation ◽  
Elevation Model
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