Unit-vector density mapping

Stephen J. Lavin, Randall S. Cerveny

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


An automated mapping technique, termed unit-vector density mapping, is introduced as a new method of displaying continuous surface vector quantities. With this graphic procedure, the density of short standard-length line segments (unit-vectors) with, or without, arrowheads represents geographical magnitudes and unit-vector orientation shows direction or movement. This paper describes the plotting algorithms for producing unit-vector density maps and demons-trates the versatility of this technique in a number of geoscientific applications.

Original languageEnglish (US)
Pages (from-to)131-141
Number of pages11
JournalCartographic Journal
Issue number2
StatePublished - Dec 1987
Externally publishedYes

ASJC Scopus subject areas

  • Earth-Surface Processes


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