Sand transport at the floor of Long Island Sound.

Sand covers c44% of the Sound, mainly in the E and there is a transition zone to the silts of the central and W areas. Principal component analysis shows % sand to be the most important parameter of the bottom sediments. Resuspension of mud in storms may affect up to 6mm of bottom sediment, but annual deposition is c1mm. Sand transport rates are c1 g m^-1s^-1 into the Sound from the E driven by tides in the sense of the bottom residual due to estuarine circulation A mass-balance equation is set up for sand transport into a region of mud accumulation in order to examine the transition zone.-I.N.McCave