Results 261 to 270 of about 24,901,573 (306)

Analysis of the scale of errors in nearshore bathymetric data

Marine Geology, 2002
Most studies of nearshore hydrodynamics, sediment transport, and morphology focus on bathymetric variability within a narrow band of spatial and temporal scales. Typically, these studies rely on bathymetry estimates derived from field observations consisting of discrete samples in space and time with varying degrees of measurement error.
Nathaniel G. Plant, K.Todd Holland, Jack A. Puleo   +2 more
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Clustering Bathymetric Data for Electronic Navigational Charts

Journal of Navigation, 2016
An electronic navigational chart is a major source of information for the navigator. The component that contributes most significantly to the safety of navigation on water is the information on the depth of an area. For the purposes of this article, the authors use data obtained by the interferometric sonar GeoSwath Plus. The data were collected in the
Marta Wlodarczyk–Sielicka, Andrzej Stateczny   +1 more
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Analysis of Challenges in Remote Data Processing for Bathymetric Data

OCEANS 2018 MTS/IEEE Charleston, 2018
The term “telecommuting” or working remotely is an idea that has been around in forward-thinking companies since the creation of the internet. Early proponents promised office workers and managers a utopian symbiotic scenario where hyper-productive staff inhabit cafe corners and waterfront verandas in far flung locations while still working together to
openaire   +1 more source

Bathymetric data held at the national geophysical data center

Marine Georesources & Geotechnology, 1994
The U.S. National Geophysical Data Center (NGDC), collocated with the World Data Center A for Marine Geology and Geophysics and the International Hydrographic Organization (IHO) Data Center for Digital Bathymetry, operates and maintains several large bathymetric databases.
openaire   +1 more source

The national geophysical data center bathymetric program

Marine Geodesy, 1992
Abstract The National Geophysical Data Center's (NGDC's) mission is data management in the broadest sense, playing a role in the nation's research into the environment and providing data to a wide group of users. NGDC also operates components of the International Council of Scientific Unions (ICSU) World Data Center A. The Marine Geology and Geophysics
Maureen R. Kenny, Kurt E. Brown
openaire   +1 more source

A new algorithm for automatic processing of bathymetric data

IEEE Journal of Oceanic Engineering, 2003
A sea-floor map can be obtained from sonar data using the supplied sonar system software or one of several public domain or proprietary systems. With any of these solutions, the process of production of a sea-floor map is unnecessarily time consuming in the absence of a systematic and efficient solution to the problem of identification of erroneous ...
G. Canepa, O. Bergem, N.G. Pace
openaire   +1 more source

Computation of Bed Load Using Bathymetric Data

Journal of the Hydraulics Division, 1980
A method of calculating bed-load transport is presented. This method takes advantage of the rapid bathymetric surveys that can be made in large rivers. The proposed equation is based on sediment continuity and an assumption for the base level of zero transport.
Peter Engel, Y. Lam lau
openaire   +1 more source

EMODnet Bathymetry a compilation of bathymetric data in the European waters

Oceans, 2019
The EMODnet 2018 digital elevation models gathers over 9400 bathymetric survey data sets and composite gridded product that have been gathered from 49 data providers from 24 European countries.
Schmitt Thierry, S. Dick, Spoelstra George, Loubrieu Benoit, Poncelet Cyrille   +4 more
semanticscholar   +1 more source

Fusion of Swath Bathymetric Data: Application to AUV Rapid Environment Assessment

IEEE Journal of Oceanic Engineering, 2019
Building an accurate and large digital terrain model (DTM) of the seabed is a key issue in various applications, especially for covert rapid environment assessment using autonomous underwater vehicles (AUVs).
R. Fezzani, B. Zerr, A. Mansour, M. Legris, C. Vrignaud   +4 more
semanticscholar   +1 more source

Computer contouring of deep sea bathymetric data

Marine Geology, 1969
Abstract A computer program has been used to construct a contour map of the crest of the Mid-Atlantic Ridge between 22° and 23°N. The computer map is produced more efficiently than a manually contoured chart and yields an acceptable representation of sea-floor topography free of interpretive bias.
George Swindle, Tjeerd H. Van Andel
openaire   +1 more source