Satellite change detection methods are usually fixed-threshold, single-image oriented and very difficult to extend to different geographical areas or to different satellite sensors. Generally, when satellite data are used to give quantitative measurements, the difficulty to correctly estimate spectral atmospheric transmittance (requiring ancillary data not always, not everywhere available) can be responsible of highly biased estimates. On the other hand, it is possible to identify a number of satellite remote sensing applications (mainly devoted to environmental monitoring or, from a wider point of view, to change detection problems) for which the use of satellite data in se might be sufficient and effective. In this context, a different approach (RST, Robust Satellite Technique) to Earth surface and atmosphere monitoring, at the same time reliable and exportable (on different satellite sensors and geographic areas) has been proposed and it will be described in this paper together with its applications relevant for Sub Saharan region. In particular results so far achieved by using optical and microwaves passive sensors for monitoring forest fire and dust storms, for floods mapping, monitoring and early warning, for volcanic eruption monitoring and prediction, for earthquake precursors monitoring, oil spill detection and pipeline networks monitoring, will be presented.

Robust satellite techniques (RST) for natural environmental and technological hazards monitoring in the Sub Saharian region

TRAMUTOLI, Valerio
2011-01-01

Abstract

Satellite change detection methods are usually fixed-threshold, single-image oriented and very difficult to extend to different geographical areas or to different satellite sensors. Generally, when satellite data are used to give quantitative measurements, the difficulty to correctly estimate spectral atmospheric transmittance (requiring ancillary data not always, not everywhere available) can be responsible of highly biased estimates. On the other hand, it is possible to identify a number of satellite remote sensing applications (mainly devoted to environmental monitoring or, from a wider point of view, to change detection problems) for which the use of satellite data in se might be sufficient and effective. In this context, a different approach (RST, Robust Satellite Technique) to Earth surface and atmosphere monitoring, at the same time reliable and exportable (on different satellite sensors and geographic areas) has been proposed and it will be described in this paper together with its applications relevant for Sub Saharan region. In particular results so far achieved by using optical and microwaves passive sensors for monitoring forest fire and dust storms, for floods mapping, monitoring and early warning, for volcanic eruption monitoring and prediction, for earthquake precursors monitoring, oil spill detection and pipeline networks monitoring, will be presented.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11563/22999
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