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A satellite-based map compared to a traditional vegetation map of Arctic vegetation in the Ny-Ålesund area, Svalbard

Published online by Cambridge University Press:  27 October 2009

Sigmund Spjelkavik
Affiliation:
The University Courses on Svalbard, PO Box 156, N-9170 Longyearbyen, Norway

Abstract

An area of Arctic vegetation on Brøggerhalvøya in the northwestern part of Spitsbergen, was studied. A classified Landsat-TM image with 57 land-cover classes (LCCs) was compared to an existing vegetation map with a comparison matrix. The 57 LCCs were grouped in seven different groups, where the seventh group contained 15 LCCs with vegetation. The other groups were regarded as non-vegetated. The correspondence between the existing vegetation map and the satellite-based vegetation map was not high, but the classes from the satellite-based land-cover map could be interpreted in botanical terms. A vegetation index (VI) was used to discriminate between vegetated and non-vegetated LCCs. The VI was correlated to plant biomass measurements, and the total plant biomass for Brøggerhalvøya was estimated. The estimated biomass coincided with other estimates from the same area.

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Type
Articles
Copyright
Copyright © Cambridge University Press 1995

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