Bathymetry at the Vema Sill

Suspended Particulate Matter Transport through the Vema Channel

Sixteen-month time-series measurements of water velocity and light scattering were coupled with hydrographic and suspended particulate matter sections to determine the flux and the variability in flux of suspended particulate matter through the Vema Channel. The northward flux of SPM through the Vema Channel ranged from 3 to 10.5 × 104 g s 1 with a mean of 6.5 × 104 g s 1. The largest fluxes we...

Airborne Lidar Bathymetry

Titanian aegirine in a teschenite sill

T w o series of pyroxenes have been found in a layered teschenite sill, 22 m thick, emplaced in Late Permian coal measures in the Sydney Basin, New South Wales, Australia. The sill consists of 12 m of homogeneous teschenite, overlain by 6 m of picrite, then by 4 m of a layered sequence. The layering unit of this sequence is teschenite, a pyroxene-rich layer and a narrow leucocratic band. A whol...

Special Issue—Bathymetry from Space

considered to be a solved problem in oceanography. The general physics of tides were understood, and they could be modeled with reasonable fidelity using relatively simple differential equations solved on computers. In general, it was thought that improvements in tide models would be made only by having higherresolution models run on faster computers. The advent of satellite altimetry by GEOSAT...

LiDAR Bathymetry for Nautical Charting

Safety Of Life at Sea (SOLAS) is the overarching principle for all offshore operations and one of the major contributing factors to SOLAS is quality navigational charts that are comprehensive and adhere to International Hydrographic Organisation (IHO) established standards of accuracy. However, a chart is only as good as the data that is used to compile it and one of the more challenging areas ...