Data used

A digital elevation model (DEM) of the catchment with 30 m x 30 m grid size was derived from digitised vector contour lines from a 1:25,000 scale map, with an equidistance of 50 m. The drainage network and catchment boundary were digitised directly from the topographic map.

Meteorological measurements were collected from the permanent meteorological station located at Bagni di Masino at an elevation of 1180 m. The station is sited on a meadow with a height of 15 cm.

Two Landsat-5 Thematic Mapper (TM) scenes, acquired in the late spring season (30-05-1996 Path 194, Row 28) and in the late winter season (07-03-1997 Path 193, Row 28), were used in this study.

Field surveys were carried out to identify training and testing areas to be used in satellite image supervised classification. Vegetation was characterised during surveys by means of vegetation height and vegetation fractional cover measurements.

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