Refine my results

Document type

Specific Collection

Language

Université de Fribourg

Imaging spectroscopy to assess the composition of ice surface materials and their impact on glacier mass balance

Naegeli, Kathrin ; Damm, Alexander ; Huss, Matthias ; Schaepman, Michael ; Hoelzle, Martin

In: Remote Sensing of Environment, 2015, vol. 168, p. 388–402

Glacier surfaces are not only composed of ice or snow but are heterogeneous mixtures of different materials. The occurrence and dynamics of light-absorbing impurities affect ice surface characteristics and strongly influence glacier melt processes. However, our understanding of the spatial distribution of impurities and their impact on ice surface characteristics and the glacier's energy budget...

Université de Fribourg

Geographic information systems (GIS) and remote sensing in aquatic botany: methodological aspects

Caloz, R. ; Collet, Claude

In: Aquatic Botany, 1997, vol. 58, no. 3-4, p. 209-228

A geographical information system (GIS) is much more than a computerized mapping system, it is a system designed to acquire, to manage and to process spatial information. In the current trend of a multidisciplinary approach of earth environmental management, GIS offer a basis for integrating both data and analysis tools from a broad spectrum of scientific disciplines. This paper aims to present...