The document discusses the use of remote sensing technologies and satellite imagery for geological applications like tailings dam monitoring. It presents SPOT satellite images from January 2002 and April 2002 of evaporation zones and beaches around a slimes dam. Changes are detected between the two dates and the beaches are classified into spectral classes in order to refine monitoring of the dam over time.

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The role of Remote
Sensing Technologies
for Geological
Applications
Conrad Sebego
Manager: Strategic
Initiatives and
Investment
Satellite Applications
Centre, CSIR

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Utilising Satellite Imagery in
Tailings Dam Monitoring

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Slimes Dam Monitoring Spot 10m res

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Merriespruit,14 people
died in 1987

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SPOT scenes
SPOT4-1 April 2002SPOT 4-7 Jan
2002

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Evaporation zones: 7 Jan 2002

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Evaporation zones: 1 Apr 2002

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Measurement 7/01/02

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Measurement 1/04/02

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Change detection

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Refined classification of Beaches
7/01/02
Masked scene Beach classified into
spectral classes

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Refined classification of Beaches
1/04/02
Masked scene Beach classified into
spectral classes

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Thank you for your attention!
ASSIGNMENT
DISCUSSION