scholarly journals Digital elevation models of Skagway and Haines, Alaska: Procedures, data sources, and quality assessment

2014 ◽  
Author(s):  
A. E. Macpherson ◽  
D. J. Nicolsky ◽  
E. N. Suleimani
Keyword(s):  
Quality Assessment ◽  
Digital Elevation Models ◽  
Data Sources ◽  
Digital Elevation

A comparison of digital elevation models generated from different data sources

Geomorphology ◽  
2009 ◽  
Vol 106 (3-4) ◽  
pp. 261-270 ◽  
Author(s):  
S. Rayburg ◽  
M. Thoms ◽  
M. Neave
Keyword(s):  
Digital Elevation Models ◽  
Data Sources ◽  
Digital Elevation

scholarly journals Quality Assessment of Digital Elevation Models in a Treeless High-Mountainous Landscape A Case Study from Mount Aragats, Armenia

2021 ◽  
Author(s):  
Pavol Hnila ◽  
Julia Elicker
Keyword(s):  
Quality Assessment ◽  
Reference Data ◽  
Reference Model ◽  
Digital Elevation Models ◽  
Digital Elevation ◽  
Mountainous Landscape ◽  
Suitable Reference

Global Digital Elevation Models (DEMs) are widely employed in geoarchaeology. Usually, their adequacy for particular landscapes is not tested. We assessed 30m-resolution-DEMs (ASTER, SRTM, ALOS, EU-DEM, NASADEM, NEXTMap) with local precision datasets. Our results reveal considerable differences (ASTER unsuitable for the region, NEXTMap and EU-DEM fit most closely to our reference model). This outcome does not necessarily apply to all similar regions. It rather stresses the need for a check of DEMs’ quality in any given study area, and it encourages the use of detailed topographic visualisations of DEMs in absence of suitable reference data.

Laurentide subgiacial outburst floods: landform evidence from digital elevation models

1996 ◽  
Vol 33 (8) ◽  
pp. 1154-1168 ◽  
Author(s):  
John Shaw ◽  
Bruce Rains ◽  
Ronald Eyton ◽  
Lee Welssling
Keyword(s):  
Gulf Of Mexico ◽  
Northwest Territories ◽  
Mississippi Delta ◽  
Digital Elevation Models ◽  
Data Sources ◽  
Outburst Floods ◽  
Digital Elevation ◽  
Northern Saskatchewan

Various lines of landform evidence in many parts of Canada are comprehensively explicable as products of subglacial sheetfloods–outburst floods. In the Northwest Territories, northern Saskatchewan, and Alberta, landform associations such as scoured bedrock tracts, cavity-fill drumlins, erosional drumlins, erosional giant flutes–remnant ridges, tunnel channels, channeled scabland, and hummocky terrain with upstanding moraine plateaus reflect primary glaciofluvial erosional processes and secondary depositional activities. The Livingstone Lake event major sheetfloods path arcs obliquely upslope from the Keewatin District, Northwest Territories, through northern Saskatchewan and much of Alberta into Montana, U.S.A. Hill-shaded maps generated from digital elevation models, at widely varying scales, are used to illustrate regional to local examples of megaflood landform suites. Complementary maps and diagrams are derived from more conventional data sources. Speculations regarding extraglacial implications of the outburst floods in the Missouri–Mississippi basins, Mississippi Delta, and Gulf of Mexico are offered for testing by others.

scholarly journals Quality assessment of open sourced digital elevation models in southeast coast of India

2021 ◽  
Author(s):  
Renganathan Mahesh ◽  
Kaladevi Jayadevan Sarunjith ◽  
Sambandan Rajakumari ◽  
Ramakrishnan Muruganandam ◽  
Ramachandran Ramesh
Keyword(s):  
Quality Assessment ◽  
Digital Elevation Models ◽  
Southeast Coast Of India ◽  
Southeast Coast ◽  
Digital Elevation
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