The use of a moored (sitting on the bottom) upward-looking acoustic Doppler current profiler (ADCP) allows to capture hydrodynamics of water column above the instrument. It is also possible to couple those profiles with variations in water depth.
Submitted by jfpa on Wed, 10/14/2015 - 05:07
During Fall 2013, Spring 2014, and Fall 2014 acoustic Doppler current profilers were moored in the inner and outer swales of Shoal E, offshore Cape Canaveral, in the Florida Atlantic coast.
Time series of current profiles and pressure were obtained at three locations within the shoal complex associated to Cape Canaveral, Florida Atlantic inner-shelf, with the objective of determining the influence of tides in the surface gravity waves propagation. Cape Canaveral shoal complex is located in the Atlantic inner-continental shelf of Florida, centered at 28.5° N, 80.5° W. The presence of ridge-swale features provides irregularity to its bottom morphology. Typically, these shoals lie at depths between 5 and 25 m.
Bottom stress shapes the mean circulation patterns, controls sediment transport, and influcences benthic habitat in the coastal ocean. Accurate and precise measurements of bottom stress have proved elusive, in part because of the difficulty of separating the turbulent eddies that transport momentum from inviscid wave-induced motions. Direct covariance measurements from a pair of ADV has proved capable of providing robust estimates. Sherwood et al.