A comparison of techniques for calculating gradient and aspect from a gridded digital elevation model

Andrew K. Skidmore*

*Corresponding author for this work

Research output: Contribution to journalArticle

197 Citations (Scopus)

Abstract

Digital elevation data spaced on a regular 30 m grid were generated over a region of moderate topography in south-east Australia. Six algorithms for calculating gradient and aspect from these data were compared. General linear regression models and the third-order finite difference methods were the most accurate.

Original languageEnglish
Pages (from-to)323-334
Number of pages12
JournalInternational Journal of Geographical Information Systems
Volume3
Issue number4
DOIs
Publication statusPublished - 1989
Externally publishedYes

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