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Showing 1 to 10 of 10 for “"swath bathymetry"”.
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Improving the Capabilities of Swath Bathymetry Sidescan Using Transmit Beamforming and Pulse Coding
Swath bathymetry sidescan (SBS) sonar and the angle-of-arrival processing that underlies these systems has the capability to produce much higher resolution three dimensional imagery and bathymetry than traditional beamformed approaches. However, the performance of these high resolution systems is …
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Subduction dynamics at the middle America trench : new constraints from swath bathymetry, multichannel seismic data, and 10BE
The cosmogenic radionuclide 10Be is a unique tracer of shallow sediment subduction in volcanic arcs. The range in 10Be enrichment in the Central American Volcanic Arc between Guatemala and Costa Rica is not controlled by variations in 10Be concentrations in subducting sediment seaward of the Middle …
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Subduction dynamics at the middle America trench : new constraints from swath bathymetry, multichannel seismic data, and ¹⁰Be
The cosmogenic radionuclide ¹⁰Be is a unique tracer of shallow sediment subduction in volcanic arcs. The range in ¹⁰Be enrichment in the Central American Volcanic Arc between Guatemala and Costa Rica is not controlled by variations in ¹⁰Be concentrations in subducting sediment seaward of the Middle …
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Defining and modeling the limits of high-resolution underwater acoustic imaging
… available. Based upon these results and existing swath bathymetry maps new algorithms for GIS applications to detect and vectorize sand crests are proposed.
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Seafloor ploughmarks on the mid-Norwegian continental shelf reveal iceberg trajectories during the last glacial period
… continental shelf using high-resolution swath bathymetry data. The orientation and morphology of each iceberg ploughmark was calculated and analysed, with features being up to 30 km long and 500 m wide and located at depths of between ~130 m and ~650 m. The orientation of all ploughmarks …
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Constraining the pathways and fluxes of subglacial meltwater beneath the palaeo-Antarctic Ice Sheet
… a compilation of over two decades of multibeam swath bathymetry data, covering a combined area of over 100,000 km2, is used to produce the most comprehensive inventory and quantitatively rigorous analysis of Antarctic submarine channelised landforms to date. Over 2700 bedrock channels are mapped …
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The Antarctic Peninsula ice sheet since the Last Glacial Maximum
… Geomorphic features analyzed in multibeam swath bathymetry and seismic data from the 2002 cruise of the Nathaniel B. Palmer indicate grounded ice that was streaming up to or near (< 10 km landward of) the shelf break. These data greatly expand earlier predictions of the size of the ice …
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Glacial Geomorphology of the Eastern Antarctic Peninsula Shelf
… completed in 2013, collected new multibeam swath bathymetry data and 3.5 kHz CHIRP sub-bottom profiles within the Larsen A and B embayments, and adjacent to the current Larsen C Ice Shelf. This new multibeam dataset has been merged with pre-existing datasets from the U.S. and British …
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Iceberg-keel ploughmarks on the seafloor of Antarctic continental shelves and the North Falkland Basin: implications for palaeo-glaciology
… hemisphere. Using high-resolution multi-beam swath bathymetry of the mid-shelf Pine Island Trough and outermost Weddell Sea shelf regions of Antarctica, detailed analysis of >13,000 iceberg-keel ploughmarks was undertaken. By considering the draft of icebergs calved from Antarctica today, …
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Spatial and temporal scales of the morphodynamic evolution within the Studland complex.
… and an interpretation of the morphostratigraphy. Swath bathymetry was used to examine contemporary seabed change within Studland Bay. Regular beach profiles provided datafora time series analysis to be applied to determine temporaland spatial beach behaviour. This study has contributed to …