Blowout dynamics on Lake Huron sand dunes : analysis of digital multispectral data from colour air photos

Auteurs :
DECH, J.P.
MAUN, M.A.
PAZNER, M.I.

Description :
The AA. adapted a digital image analysis procedure to extract multispectral data from sequential colour air photos of a Lake Huron sand dune system and then classify land cover into water, sand, and vegetation. They isolated portions containing individual blowouts from georeferenced land cover maps of the dune system in 1973 and 1998 and overlaid the sequential images using geographic information system (GIS). This allowed to quantify changes in blowouts over the 25-year period.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2005, vol. 60, n°. 2, p. 165-180, nombre de pages : 16, Collation : Illustration, Références bibliographiques : 33 ref.

Date :
2005

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena