Systematic Variations in Offshore Bathymetry

Modeling Systematic Variations in Pronunciation

This paper describes the research efforts of the “Hidden Speaking Mode” group participating in the 1996 summer workshop on speech recognition. The goal of this project is to model pronunciation variations that occur in conversational speech in general and, more specifically, to investigate the use of a hidden speaking mode to represent systematic variations that are correlated with the word seq...

Parabolic equation solution of seismo-acoustics problems involving variations in bathymetry and sediment thickness.

Recent improvements in the parabolic equation method are combined to extend this approach to a larger class of seismo-acoustics problems. The variable rotated parabolic equation [J. Acoust. Soc. Am. 120, 3534-3538 (2006)] handles a sloping fluid-solid interface at the ocean bottom. The single-scattering solution [J. Acoust. Soc. Am. 121, 808-813 (2007)] handles range dependence within elastic s...

Airborne Lidar Bathymetry

A littoral survey in Lake Tanganyika: spatiotemporal variations in nutrient concentrations, phytoplankton biomass and bathymetry near the Kigoma Region

Nutrient cycling in Lake Tanganyika is influenced by the tilting of the thermocline (Coulter 1991). Prevailing southeast winds during the four month dry season (May through September) cause the thermocline to rise in the south bringing nutrient rich waters from depth to the surface at the southern end of the lake (Coulter 1991). However, related upwelling events also occur in the north, bringin...

Palynology as a Tool in Bathymetry