The valley extraction based on the hexagonal grid-based DEM

The valley extraction based on the hexagonal grid-based DEM

Valley extraction from grid-based DEM depends on the geometrical shape, spatial tessellation and placement of grids. Traditional researches ignore that the shape of grid can influence the neighborhood relationship, impacting on the result of valley extraction. The traditional D8 algorithm is based o...

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Bibliographic Details
Main Authors: WANG Lu, AI Tinghua
Format: Article
Language:zho
Published: Surveying and Mapping Press 2019-06-01
Series:Acta Geodaetica et Cartographica Sinica
Subjects:
Hexagonal grids
DEM analysis
D6 algorithm
valley extraction
Online Access:http://html.rhhz.net/CHXB/html/2019-6-780.htm

Internet

http://html.rhhz.net/CHXB/html/2019-6-780.htm

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