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Introduction & summary

This tool calculates the yearly siltation inside the harbour basin based on the theory of Van Rijn (Harbour siltation and control measures, 2012). The tool uses tidal characteristics (mean high water MHW, mean low water MLW and ebb/flood flow velocities) and harbour characteristics (Total surface area, entrance width and entrance configuration) to calculate the exchanged volumes of water and suspended sediment, variable concentrations and the yearly sedimentation within the harbour basin.

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Default Value

Unit

Min.

Max.

Brief Description

Concentration outside harbour (constant)

0.1

kg/m3

0

10

Constant mud concentration outside harbour

Concentration outside harbour (max variable)

0.02

kg/m3

0

10

Maximum variable mud concentration outside harbour

Settling velocity sediment

0.0003

kgm/m3s

0

1

Settling velocity of suspended sediment (silt/clay)

Bulk density

400

kg/m3

0

3000

Bulk density after sedimentation of sediment (silt/clay)

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