In the Italian Alps, the majority of glaciers are small (less than 1 km), but cover a significant glaciated surface area, despite the fact that ground surveys have only dealt with the major glaciers. Analysis of some Landsat TM images taken at the end of the ablation season highlighted retreat modes in the 1980s on all glaciers in the Breonie, Aurine and Pusteresi groups (eastern Alps)—an area ...

The aim of this study is to validate the Spectral Angle Mapper (SAM) algorithm for geological mapping in Central Jebilet Morocco and compare the results between high and medium spatial resolution sensors, such as Quickbird and Landsat TM respectively. The geology of the study area is dominated by the Sahrlef schist, which is intruded by numerous bodies of acidic and basic magmatic rocks and len...

The overall objective of this study was to use field spectro-radiometers for finding possible spectral regions in which chlorophyll-a (Chl-a) and particulate organic carbon (POC) could be identified so as to assist the assessment and monitoring of water quality using satellite remote sensing technology. This paper presents the methodology adopted in this study which is based on the application ...

Landsat TM images of the Pearl River Delta taken in 1988, 1998 and 2006 are used to explore the site factors that influence the construction land expansion in this study. Several site factors, including landscape types and the distances to roads, coastlines, or city centers, had significant impacts on the expansion of construction land, influencing the direction, scale and intensity of the expa...

Methodologies to improve Landsat TM forest classifications of alpine regions through the removal of some radiometric and geometric distortions are tested. Besides correcting for sensor and system induced errors, geometric corrections are performed using a digital elevation model. Then scene related effects such as differences in illumination as well as the height dependent atmospheric influence...