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standardization of environmental data and information - International ...

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5. Total mass <strong>of</strong> dried sediment discharged<br />

= (9,200,000 l) x (38.3gm/l)<br />

= 352 tons<br />

6. Total volume <strong>of</strong> sediment discharged<br />

= (9,200,000 l) x (269 millilitres/l)<br />

= 2475 m 3 - based on 24 hours <strong>of</strong><br />

sediment settling<br />

= (9,200,000 l) x (295 ml/l)<br />

= 2714 m³ - based on 12 hours <strong>of</strong><br />

sediment settling.<br />

3.4.3. Colour-intensity analysis<br />

Figure 12 Disturber arrangement 20 .<br />

An image analytical technique, which examines colour-intensity ratio<br />

between manganese nodules <strong>and</strong> the sediments in the seafloor photos,<br />

was used for detecting the resedimentation area 21 (figures 13 <strong>and</strong> 14).<br />

208 INTERNATIONAL SEABED AUTHORITY

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