Radiometric investigation of different snow covers in Svalbard

This paper examines the relationship between reflectance and physical characteristics of the snow cover in the Arctic. Field data were acquired for different snow and ice surfaces during a survey carried out at Ny-Ålesund, Svalbard, in spring 1998. In each measurement reflectance in the spectral ran...

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Bibliographic Details
Published in:Polar Research
Main Authors: Anselmo Cagnati, Francesca Lauta, Jon Børre Ørbæk, Rosamaria Salvatori, Mauro Valt, R. Casacchia
Format: Article in Journal/Newspaper
Language:English
Published: 2001
Subjects:
Rural Digital Europe
NEANIAS Atmospheric Research Community
Earth and Planetary Sciences (miscellaneous)
General Environmental Science
Environmental Chemistry
Oceanography
albedo
Arctic
Ny Ålesund
Ny-Ålesund
Svalbard
Online Access:https://www.openaccessrepository.it/record/123915
https://doi.org/10.3402/polar.v20i1.6496
Description
Summary:This paper examines the relationship between reflectance and physical characteristics of the snow cover in the Arctic. Field data were acquired for different snow and ice surfaces during a survey carried out at Ny-Ålesund, Svalbard, in spring 1998. In each measurement reflectance in the spectral range 350 - 2500 nm, snow data (including temperature, grain size and shape, density and water content), surface layer morphology, and vertical profile of the snow pack were recorded detailed analysis of reflectance based on the physical was performed. Field reflectance data were also re-sampled at the spectral intervals of Landsat TM to compare the ability of identifying different snow targets at discrete wavelength intervals. This analysis shows that reliable data on snow structure and thickness are necessary to understand albedo changes of the snow surfaces.

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