| 摘要 |
The present invention relates to a method of determining an efficient extraction of solid material from a seabed (12) by means of a vessel (1) equipped with a dredging unit (3) for removing a suspension of solid material from the seabed (12), which method comprises the steps i) measuring the rate at which solid material is extracted i.e . the throughput, and ii) determining an efficient extraction if the throughput is above a defined level. It also relates to a method for making a survey map, a device and computer program implementing the method. |
