Required Standard*

Select the standard so the engine can confirm if your survey configuration meets specification

Project Name*

Enter the project name so the report can identify which project this assessment is associated with.

User Name*

Enter your name so the report can identify who undertook the assessment.

TPU Computation Date*

TPU Engine Version*

Multibeam Sensor*

Select the Multibeam System

Position System*

Select the Positioning System

Attitude Sensor*

Select the Attitude System

Draft Sensor*

Select the Draft Sensor

Tide Sensor*

Select the Tide reduction source

Tide Model*

The tide model source of error is based on the estimation of uncertainty from tide zoning.

Squat Model*

The squat model source of error is based how well you have modelled the vessel squat. For Ellipsoidal reduction set to zero.

Sector Angle*

Select the full opening angular sector for the sonar, eg 180 degrees for horizon to horizon

Ping Rate (Hz)*

Select the pings per second rate. Set to -1 for automatic as fast as possible

Swath Coverage (%)*

Select the Swath Coverage, 100% for FULL Bathymetric Coverage, 200% for Full Seafloor Coverage. For Order 1a set to 110%

Minimum Depth(m)*

Select the Minimum Depth for the survey. This is used to bracket the computations.

Maximum Depth (m)*

Select the Maximum Depth for the survey. This is used to bracket the computations.

Vessel Speed (Kts)*

Vessel speed has a direct impact on data density and feature detection capability.

Mean Column SVP*

The Mean SV for water column is used to compute the THU and TVU on outer beams. This only needs to be approximate for the area of operation.

Acceptable SVP Error*

Acceptable SVP error arises from observing SVP in one location and them moving to a different water body, tide cycle.

Maximum Operating Pitch Condition*

The maximum operational PITCH impacts most notebly on outer beams for both TVU and THU.

Maximum Operating Roll Condition*

The maximum operational ROLL impacts most notebly on outer beams for both TVU and THU.

Maximum Operating Heave Condition*

The maximum operational HEAVE impacts the entire ping for TVU.

Patch Test Roll Uncertainty*

Uncertainy associated with an imperfect patch test affects both THU and TVU.

Patch Test Pitch Uncertainty*

Uncertainy associated with an imperfect patch test affects both THU and TVU.

GNSS Antenna Installation Uncertainty*

The GNSS antenna installation accurcay is source of error for lever arm computations contributing to both THU and TVU.

GNSS Antenna to MBES Offset:X*

The Antenna to MBES offset impacts both TVU and THU. sign does not matter

GNSS Antenna to MBES Offset:Y*

The Antenna to MBES offset impacts both TVU and THU. sign does not matter

GNSS Antenna to MBES Offset:Z*

The Antenna to MBES offset impacts both TVU and THU via offset errors. Its always good to minimise these. sign does not matter

IMU to MBES Offset:X*

The IMU to MBES offset creates lever arm sources of error. Its always good to minimise these.

IMU to MBES Offset:Y*

The IMU to MBES offset creates lever arm sources of error. Its always good to minimise these.

IMU to MBES Offset:Z*

The IMU to MBES offset creates lever arm sources of error. Its always good to minimise these.

References