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Remote sensing analysis of physical complexity of North Pacific Rim rivers to assist wild salmon conservation

Auteur(s) et Affiliation(s)

LUCK, M.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
MAUMENEE, N.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
WHITED, D.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
LUCOTCH, J.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
CHILCOTE, S.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
LORANG, M.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
GOODMAN, D.
Dep. of Ecology, Montana State Univ., Polson, Etats-Unis
MCDONALD, K.
Jet Propulsion Lab., California Inst. of Technology, Pasadena, Etats-Unis
KIMBALL, J.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis
STANFORD, J.
Flathead Lake Biological Station, Univ. of Montana, Polson, Etats-Unis


Description :
The aim of this study was to develop a database of landscape metrics that could be used to rank the rivers in relation to potential salmon productivity. The AA. examined the rankings in relation to existing empirical (monitoring) data describing productivity of salmon stocks. To extract the metrics for each river basin they used a digital elevation model and multispectral satellite imagery. They developed procedures to extract channel networks, floodplains, on-channel lakes and other catchment features; variables such as catchment area, channel elevation, main channel length, floodplain area, and density of hydrojunctions (nodes) were measured. They processed 1509 catchments in the North Pacific Rim including the Kamchatka Peninsula in Russia and western North America. Results and discussion.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2010, vol. 35, n°. 11, p. 1330-1343, nombre de pages : 14, Références bibliographiques : 1,5 p.

Date :
2010

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais
Droits :
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