MBES survey total time calculator

Calculates the total time to complete a single-swath MBES survey given the survey area dimensions, swath angle, overlap, depth, vessel speed, and line turn time. Do not use this tool for areas where depth is not constant.

Inputs

Survey area length

1 km = 0.5396 nm

Survey area width

1 km = 0.5396 nm

Swath angle (total)

Required overlap

100% means the nadir beam of line N+1 touches the outer beam of line N

Average depth

1 US Survey ft = 0.3048 m

Speed of advance

knots

1 mph = 0.8689 kts · 1 m/s = 1.944 kts

Vessel turn time (end of line N to start of line N+1)

minutes

Calculated parameters

Swath width at depth

— m

Line spacing

— m

Number of lines

—

Results

Total time to run lines

—

Of which: acquisition time

—

Of which: total turn time

—

These calculators are informational tools provided without warranty or cost. Do not use this tool for areas where depth (sonar altitude) is not constant. Results assume a flat seabed, constant depth, constant speed, and uniform line spacing. Do not rely on this tool when planning any survey where financial or safety factors are present. MosaicHydro is not responsible for any errors, omissions, or decisions made in reliance on these results.