Description:
<jats:p>Six multispectral SPOT images and one Landsat Thematic Mapper image of the central part of the Sør Rondane Mountains, Dronning Maud Land, Antarctica, were obtained over a five year period (1986–90) and studied for their potential in mapping the glacierized surface. From the thermal IR reflectances of Landsat TM a map of ice and snow temperatures was obtained, reflecting large-scale topography. The “middle” IR and “near” IR bands (in descending order of importance) enhance markedly the variations on the snow surface itself. This can be most clearly seen in the accumulation area north and south of the range where the snow cover is abundant.</jats:p>
<jats:p>From multispectral SPOT imagery a glacio-morphological map was created. Some aspects of this map are discussed with respect to the significance of the ablation in this isolated mountain area, where the main ice stream is diverted around the range. Finally, an analysis of multitemporal images led to the development of a classification tool to quantify the extent of ablation and accumulation areas. Also, by this method drift snow could be distinguished from the permanent snow cover.</jats:p>