Land use employing satellite image of low spatial resolution : a case in the Nrotheastern Argentina using Landsat TM 5 (thematic mapper) and Landsat ETM 7 (Enhanced thematic mapper) multispectral optical sensors
Torra, Roberto
In this paper I intend to show how satellite images are useful in order to planning and obtain quick natural resources data recognition from the landscape, topography, relief and geomorphologic main elements and the rock-massif units. These cartographies result of great utility to civil and hydraulic engineering purpose, so as projecting many different types of civil works related with land and management use. Monitoring of cattle-rising activities are greatly benefits at the northeastern region of Argentina. The study is based on digital image processing (DIP) techniques and visual interpretation methods. Histogram analysis (pixel analysis, digital number reflectivity) band per band, stretching transformations, directional and non-directional filtering, contrast and brightness adjustments, reflexivity enhanced, geometrical corrections, mosaicking, matching images, classification and planimetrical cartography at 1:100.000, with about of 40 - 45 meters of rms were made.
Event: XXIII International FIG Congress : Shaping the change
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