The Effect of Boat Waves on the Sedimentary Processes of a New England Tidal Flat.

摘要

In order to estimate the effect of increased boat traffic on channel bank and tidal flat erosion, a system of intake valves was 'plumbed' into a portion of a tidal flat in the Great Bay Estuary of New Hampshire. Waves were set up from six different boats, ranging in size from 13 to 34 feet. Water samples were collected from 8 stations orthogonally spaced over the tidal flat. At each station, water samples at 30 and 15 cm off the bottom were collected before, during and after the boat wave passed by and filtered for total suspended load. The boat wave characteristics were measured, along with the bottom currents, salinity, near bottom temperatures, and temperature profiles of the water column. Boat waves were set up at the beginning of the flood phase and near the end of the ebb. These waves were set up at the same water depth for each phase of the tide. (Modified author abstract)