Tower Hydrographic Software, Windows based, flexible, fully configurable and above all, easy to use.

Dredging

This program is designed to carry out real-time data acquisition for dredging and dredge support operations.

Tower has been involved in the dredging industry for more than twelve years with Jan de Nul N.V. and Forth Ports and, more recently, with Musing BV Dredging & Civil Construction, Dover Harbour Board, Land & Water, and UK Dredging. Tower specialises in the supply of tailored dredging software and supplies dredging experienced survey personnel to support the software where required. The support team at Tower has many years experience both offshore and onshore in the industry, ensuring that the best possible service is provided.

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.In addition to the standard features, this program has the following capabilities:

• Dredging progress can be accurately monitored in real time by loading and displaying a colour banded 3-D model (DTM – Digital Terrain Model) of the seabed, and updating it from the dredgehead positions.

• Options for trailer dredgers, cutter dredgers, backhoe dredgers/excavators, and cranes.

• A theoretical or ‘design’ model can also be superimposed to enable operators to assess when the desired datum has been achieved.

• The models can be colour-banded relative to each other, or relative to a local tide datum, for ease of monitoring.

• The dredgehead positions can be measured and adjusted for tide and draft before displaying over the model and updating it.

• Profiles can be drawn across and along the track through the dredgeheads, and will show the following:

• Specialised cutter-dredger routines allow for spud and cutterhead calculations, and a transverse profile can be drawn around the curve, which the head will follow.

• Backhoe/excavator routines can interface to XPM or Prolec systems, or calculate and display the bucket position directly.

• Crane routines can calculate and display XYZ of grab and open/close status, using cable lengths and crane offsets.

• Dredging dump option. Size of dump can be specified and DTM is updated on icon press or menu click.

• There are checks to ensure the model is updated only when desired.

• Data can be transmitted to other vessels e.g. other dredgers and dump barges, so all digging and dumping can be seen by everyone, and all vessel positions can be monitored.

• Multiple tide gauges can be used.

• DXF display routines are available to show soundings and coastline files.

• There are options for network protocol routines to enable the transfer of data between the Tower Online Dredge software and the IHC/Imtech ECDIS/IMS system. The system allows for the bi-directional transfer of survey data as well as the sending of geodetic data, waypoints, digital terrain models (DTM’s) and volume planes/profiles from the Tower system.