scholarly journals Path-based methods for the determination of nondispersive drainage directions in grid-based digital elevation models

2003 ◽  
Vol 39 (6) ◽  
Author(s):  
Stefano Orlandini ◽  
Giovanni Moretti ◽  
Marco Franchini ◽  
Barbara Aldighieri ◽  
Bruno Testa
Keyword(s):  
Digital Elevation Models ◽  
Digital Elevation ◽  
Grid Based

Determination of Mars crater geometric data: Insights from high-resolution digital elevation models

2017 ◽  
Vol 53 (4) ◽  
pp. 726-740 ◽  
Author(s):  
Peter J. Mouginis-Mark ◽  
Joseph Boyce ◽  
Virgil L. Sharpton ◽  
Harold Garbeil
Keyword(s):  
High Resolution ◽  
Digital Elevation Models ◽  
Geometric Data ◽  
Digital Elevation

scholarly journals Determination of Changes in Volume and Elevation of Glaciers using Digital Elevation Models for the Vernagtferner, Ôtztal Alps, Austria

1986 ◽  
Vol 8 ◽  
pp. 151-155 ◽  
Author(s):  
W. Reinhardt ◽  
H. Rentsch
Keyword(s):  
Digital Elevation Models ◽  
Glacier Area ◽  
Digital Elevation ◽  
Accuracy Level ◽  
Contour Plots

The paper deals with the determination of changes in volume and elevation of glaciers, using Digital Elevation Models (DEM). First, the generation of a DEM is briefly described and the method of determining changes in volume and elevation by using DEMs is introduced, A brief description of the determination of these changes by means of contour plots follows. A comparison of both methods with respect to accuracy and economy is carried out on part of the Vernagtferner. The results from these investigations show that a required accuracy level can be obtained more economically by using DEMs. The changes in volume and elevation for the whole glacier area are determined by means of DEMs, for 1979 and 1982. The paper concludes with comments on the results and a review of other applications of DEMs.

scholarly journals Determination of 3D Displacements of Drainage Networks Extracted from Digital Elevation Models (DEMs) Using Linear-Based Methods

2017 ◽  
Vol 6 (8) ◽  
pp. 234 ◽  
Author(s):  
Antonio Tomás Mozas-Calvache ◽  
Manuel Antonio Ureña-Cámara ◽  
Francisco Javier Ariza-López
Keyword(s):  
Digital Elevation Models ◽  
Drainage Networks ◽  
Digital Elevation

scholarly journals Glacier geomorphometry — an approach for analyzing long-term glacier surface changes using grid-based digital elevation models

1997 ◽  
Vol 24 ◽  
pp. 135-141 ◽  
Author(s):  
Bernd Etzelmüller ◽  
Johan Ludvig Sollid
Keyword(s):  
Thermal Regime ◽  
Digital Elevation Models ◽  
Surface Form ◽  
Glacier Surface ◽  
Mass Losses ◽  
Digital Elevation ◽  
Glacier Dynamics ◽  
Grid Based ◽  
Surface Changes

This paper presents an approach to long-term glacier monitoring. Mathematical surface descriptors, such as altitude, slope and curvature (surface form) are used to classify and quantify glacier surface developments. The analysis is based on photogrammetically derived grid-based digital elevation models over a period of decades. This paper outlines the concept and applies it to five valley glaciers in Spitsbergen, Svalbard, which differ with respect to size, thermal regime and dynamics. The results reflect differences between the glaciers investigated which are attributable to glacier dynamics, in particular concerning the glacier’s possible surge behaviour during a period with retreat and mass losses.

scholarly journals Determination of Changes in Volume and Elevation of Glaciers using Digital Elevation Models for the Vernagtferner, Ôtztal Alps, Austria

1986 ◽  
Vol 8 ◽  
pp. 151-155 ◽  
Author(s):  
W. Reinhardt ◽  
H. Rentsch
Keyword(s):  
Digital Elevation Models ◽  
Glacier Area ◽  
Digital Elevation ◽  
Accuracy Level ◽  
Contour Plots

The paper deals with the determination of changes in volume and elevation of glaciers, using Digital Elevation Models (DEM). First, the generation of a DEM is briefly described and the method of determining changes in volume and elevation by using DEMs is introduced, A brief description of the determination of these changes by means of contour plots follows. A comparison of both methods with respect to accuracy and economy is carried out on part of the Vernagtferner. The results from these investigations show that a required accuracy level can be obtained more economically by using DEMs. The changes in volume and elevation for the whole glacier area are determined by means of DEMs, for 1979 and 1982. The paper concludes with comments on the results and a review of other applications of DEMs.

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